LITTELFUSE 1206L016

POLYFUSE® Resettable PTCs
Surface Mount
0805L Series
Description
he new 0805L series device provides surface mount
T
overcurrent protection for applications where space is at
a premium and resettable protection is desired.
Features
Agency Approvals
AGENCY
• Low resistance
• Low-profile
• Compatible with high
temperature solders
• RoHS compliant and lead-free
• Fast response to fault
currents
• Compact design saves
board space
AGENCY FILE NUMBER
Applications
E183209
• USB peripherals
• Disk drives
• CD-ROMs
• Plug and play protection
for motherboards and
peripherals
R50082521
• Mobile phones - battery
and port protection
• Disk drives
• PDAs / digital cameras
• Game console port
protection
Electrical Characteristics
Marking
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
0805L010
A
0.10
0.30
15
100
0805L020
C
0.20
0.50
9
0805L035
E
0.35
0.75
6
0805L050
F
0.50
1.00
0805L075
G
0.75
1.50
0805L100
N
1.0
1.95
Part Number
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
0.5
0.50
1.50
1.000
3.500
6.000
X
X
100
0.5
8.00
0.02
0.650
2.000
3.500
X
X
100
0.5
8.00
0.10
0.250
0.750
1.200
X
X
6
100
0.5
8.00
0.10
0.150
0.500
0.850
X
X
6
40
0.6
8.00
0.20
0.090
–
0.350
X
X
6
40
0.6
8.00
0.30
0.060
–
0.210
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
0805L Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
0805L010
0.14
0.12
0.11
0.10
0.08
0.07
0.06
0.05
0.03
0805L020
0.28
0.25
0.23
0.20
0.17
0.14
0.12
0.10
0.07
0805L035
0.47
0.44
0.39
0.35
0.30
0.27
0.24
0.20
0.14
0805L050
0.68
0.62
0.55
0.50
0.40
0.37
0.33
0.29
0.23
0805L075
1.00
0.90
0.79
0.75
0.63
0.57
0.53
0.41
0.34
0805L100
1.35
1.25
1.10
1.00
0.82
0.74
0.65
0.55
0.42
0805L Series
0.500A
Temperature Rerating Curve
0.750A
1.00A
0.200A
0.350A
0.100A
Average Time Current Curves
170%
100000
Percentage of Rated Current
150%
10000
TIME IN SECONDS
1000
100
130%
110%
90%
70%
50%
30%
10
10%
-40 -30 -20
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
1
0.100
0.010
0.001
0.02
0.100
1
10
100
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.10
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
www.littelfuse.com
©2006 Littelfuse
Electronics Designers Guide
0805L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Soldering Parameters
Condition
Reflow
Peak Temp/ Duration Time
260°C / 10 Sec
Time above liquids (TAL) 220°C
60 Sec ~ 100 Sec
Preheat 120°C~ 180°C
50 Sec ~ 150 Sec
0°C~35°C, <
=70%RH
Cooling
220
Temperature (°C)
Storage Condition
Soldering
260
• Recommended reflow methods: IR, vapor phase oven, hot air
oven, N2 environment for lead-free
• Devices are not designed to be wave soldered to the bottom side
of the board.
• Recommended maximum paste thickness is 0.25mm (0.010 inch)
• Devices can be cleaned using standard industry methods and
solvents.
Note: If reflow temperatures exceed the recommended profile,
devices may not meet the performance requirements.
180
120
0
Preheating
50 to 150
60 to 100
120
Time(s)
Physical Specifications
Environmental Specifications
Terminal Material
Gold-Plated Copper or Solder-Plated
Copper (Solder Material: Matte Tin (Sn))
Operating/Storage
Temperature
-40°C to +85°C
Lead Solderability
Meets EIA Specification RS186-9E, ANSI/
J-STD-002 Category 3.
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Humidity Aging
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
Thermal Shock
MIL-STD-202 Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215
No change
Vibration
MIL-STD-883C, Method
2007.1, Condition A
No change
0805L Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
Dimensions
MARKING CODE VARIES
WITH AMPERAGE RATING
(SEE CHART)
SHOWN IS 1.0AMP RATING
C
A
N
Top
View
Side
View
B
Bottom
View
1.20 mm
(.047)
Pad
Layout
D
E
1.50 mm
(.059)
1.00 mm
(.040)
A
Part
Number
B
Inches
mm
Inches
C
mm
D
Inches
mm
E
Inches mm
Inches
Min
mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
Min.
Min.
Max. Min. Max.
0805L010
0.08
0.09
2.00
2.20
0.05
0.06
1.20
1.50
0.02
0.04
0.55
1.00
0.01
0.20 0.004 0.02
0.10
0.45
0805L020
0.08
0.09
2.00
2.20
0.05
0.06
1.20
1.50
0.02
0.04
0.55
1.00
0.01
0.20 0.004 0.02
0.10
0.45
0805L035
0.08
0.09
2.00
2.20
0.05
0.06
1.20
1.50
0.02
0.03
0.45
0.75
0.01
0.20 0.004 0.02
0.10
0.45
0805L050
0.08
0.09
2.00
2.20
0.05
0.06
1.20
1.50
0.03
0.05
0.75
1.25
0.01
0.20 0.004 0.02
0.10
0.45
0805L075
0.08
0.09
2.00
2.20
0.05
0.06
1.20
1.50
0.03
0.05
0.75
1.25
0.01
0.20 0.006 0.02
0.15
0.45
0805L100
0.08
0.09
2.00
2.20
0.05
0.06
1.20
1.50
0.03
0.07
0.80
1.80
0.01
0.20 0.006 0.02
0.15
0.45
Part Numbering System
0805 L 100 W R
PACKAGING STYLE
R: Tape & Reel
SERIES
QUANTITY CODE: W=3000 Y=4000
I HOLD HOLD CURRENT CODE(SEE TABLE BELOW)
L: LITTELFUSE SURFACE MOUNT PPTC
SIZE
Packaging
I hold
(A)
I hold Code
Packaging
Option
Quantity
Quantity &
Packaging Codes
0.10
010
Tape and Reel
4000
YR
0.20
020
Tape and Reel
4000
YR
0.35
035
Tape and Reel
4000
YR
0.50
050
Tape and Reel
3000
WR
0.75
075
Tape and Reel
3000
WR
1.00
100
Tape and Reel
3000
WR
www.littelfuse.com
©2006 Littelfuse
Electronics Designers Guide
0805L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
1206L Series
Description
he 1206L series device provides surface mount
T
overcurrent protection for applications where space is at
a premium and resettable protection is desired.
Features
Agency Approvals
AGENCY
• Low resistance
• Low-profile
• Compatible with high
temperature solders
• RoHS compliant and lead-free
• Fast response to fault
currents
• Compact design saves
board space
AGENCY FILE NUMBER
Applications
E183209
• USB peripherals
• Disk drives
• CD-ROMs
• Plug and play protection
for motherboards and
peripherals
R50082521
• Mobile phones - battery
and port protection
• Disk drives
• PDAs / digital cameras
• Game console port
protection
Electrical Characteristics
Marking
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
1206L012
A
0.125
0.29
30
100
1206L016
B
0.16
0.37
30
1206L020-C
C
0.20
0.42
1206L025-C
D
0.25
0.50
1206L035-C
E
0.35
1206L035/16
J
0.35
1206L050-C
F
1206L050/15
1206L075-C
Part Number
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
0.6
1.00
0.20
1.500
3.600
6.000
X
X
100
0.6
1.00
0.30
1.200
2.800
4.500
X
X
24
100
0.6
8.00
0.10
0.650
1.550
2.600
X
X
16
100
0.6
8.00
0.08
0.550
1.400
2.300
X
X
0.75
6
100
0.6
8.00
0.10
0.300
0.750
1.200
X
X
0.75
16
100
0.6
8.00
0.10
0.300
0.750
1.200
X
X
0.50
1.00
6
100
0.6
8.00
0.10
0.150
0.400
0.700
X
X
M
0.50
1.00
15
100
0.6
8.00
0.10
0.150
0.400
0.750
X
X
G
0.75
1.50
6
100
0.6
8.00
0.20
0.090
0.200
0.290
X
X
1206L100
N
1.00
1.80
6
100
0.8
8.00
0.30
0.055
0.110
0.210
X
X
1206L110-C
H
1.10
2.20
6
100
0.8
8.00
0.30
0.040
0.110
0.180
X
X
1206L150-C
K
1.50
3.00
6
100
0.8
8.00
1.00
0.040
0.080
0.120
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
1206L Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
1206L012
0.18
0.16
0.14
0.125
0.10
0.09
0.08
0.07
0.05
1206L016
0.22
0.20
0.18
0.16
0.14
0.12
0.10
0.09
0.08
1206L020-C
0.28
0.25
0.23
0.20
0.17
0.15
0.14
0.12
0.09
1206L025-C
0.37
0.33
0.29
0.25
0.22
0.20
0.17
0.15
0.12
1206L035-C
0.50
0.45
0.40
0.35
0.30
0.27
0.24
0.21
0.15
1206L035/16
0.50
0.45
0.40
0.35
0.30
0.27
0.24
0.21
0.15
1206L050-C
0.71
0.64
0.57
0.50
0.42
0.39
0.35
0.31
0.25
1206L050/15
0.71
0.64
0.57
0.50
0.42
0.39
0.35
0.31
0.25
1206L075-C
1.14
1.01
0.88
0.75
0.65
0.59
0.54
0.49
0.41
1206L100
1.45
1.31
1.15
1.00
0.84
0.77
0.69
0.61
0.48
1206L110-C
1.52
1.37
1.25
1.1
0.92
0.82
0.75
0.64
0.52
1206L150-C
2.18
1.94
1.72
1.50
1.28
1.17
1.06
0.96
0.77
1206L Series
0.120A
0.160A
Temperature Rerating Curve
0.200A
0.250A
0.350A
0.350A/15V
0.500A
0.500A/15V
0.750A
1.00A
1.10A
1.50A
2.00A
Average Time Current Curves
170%
100000
Percentage of Rated Current
150%
10000
TIME IN SECONDS
1000
130%
110%
90%
70%
50%
100
30%
10%
10
-40 -30 -20
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
1
0.100
0.010
0.001
0.20
1
10
100
1000
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.10
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
www.littelfuse.com
©2006 Littelfuse
Electronics Designers Guide
1206L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Soldering Parameters
Condition
Reflow
Peak Temp/ Duration Time
260°C / 10 Sec
Time above liquids (TAL) 220°C
60 Sec ~ 100 Sec
Preheat 120°C~ 180°C
50 Sec ~ 150 Sec
Storage Condition
0°C~35°C, 70%RH
Soldering
260
Cooling
Temperature (°C)
220
• Recommended reflow methods: IR, vapor phase oven, hot
air oven, N2 environment for lead-free
180
120
• Devices are not designed to be wave soldered to the
bottom side of the board.
0
• Recommended maximum paste thickness is 0.25mm
(0.010 inch)
Preheating
50 to 150
60 to 100
120
Time(s)
• Devices can be cleaned using standard industry methods
and solvents.
Environmental Specifications
Note: If reflow temperatures exceed the recommended
profile, devices may not meet the performance
requirements.
Operating/Storage
Temperature
-40°C to +85°C
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Humidity Aging
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
Thermal Shock
MIL-STD-202 Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215
No change
Vibration
MIL-STD-883C, Method
2007.1, Condition A
No change
Physical Specifications
Terminal Material
Solder-Plated Copper (Solder Material:
Matte Tin (Sn))
Lead Solderability
Meets EIA Specification RS186-9E, ANSI/
J-STD-002 Category 3.
1206L Series
Specifications are subject to change without notice.
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
Dimensions
MARKING CODE VARIES
WITH AMPERAGE RATING
(SEE CHART)
SHOWN IS 1.6AMP RATING
C
A
N
Top
View
Side
View
B
Bottom
View
1.80 mm
(.071)
Pad
Layout
D
E
1.00 mm
(.040)
A
Part
Number
1.80 mm
(.071)
B
Inches
mm
Inches
C
mm
Inches
D
mm
E
Inches mm
Inches
Min
mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
Min.
Min.
Max. Min. Max.
1206L012
0.12
0.14
3
3.5
0.06
0.07
1.5
1.8
0.03
0.06
0.65
1.45
0.01
0.2
0.004 0.02
0.1
0.45
1206L016
0.12
0.14
3
3.5
0.06
0.07
1.5
1.8
0.03
0.06
0.65
1.45
0.01
0.2
0.004 0.02
0.1
0.45
1206L020-C
0.12
0.14
3
3.5
0.06
0.07
1.5
1.8
0.02
0.04
0.5
1
0.01
0.2
0.004 0.02
0.1
0.45
1206L025-C
0.12
0.14
3
3.5
0.06
0.07
1.5
1.8
0.02
0.04
0.5
1
0.01
0.2
0.004 0.02
0.1
0.45
1206L035-C
0.12
0.14
3
3.5
0.06
0.07
1.5
1.8
0.02
0.03
0.45
0.75
0.01
0.2
0.004 0.02
0.1
0.45
1206L035/16
0.12
0.14
3
3.5
0.06
0.07
1.5
1.8
0.02
0.03
0.45
0.75
0.01
0.2
0.004 0.02
0.1
0.45
1206L050-C
0.12
0.14
3
3.5
0.06
0.07
1.5
1.8
0.02
0.03
0.45
0.75
0.01
0.2
0.004 0.02
0.1
0.45
1206L050/15
0.12
0.14
3
3.5
0.06
0.07
1.5
1.8
0.02
0.03
0.45
0.75
0.01
0.2
0.004 0.02
0.1
0.45
1206L075-C
0.12
0.14
3
3.5
0.06
0.07
1.5
1.8
0.02
0.05
0.45
1.25
0.01
0.2
0.004 0.02
0.1
0.45
1206L100
0.12
0.13
3
3.4
0.06
0.07
1.5
1.8
0.03
0.04
0.75
1
0.01
0.2
0.004 0.02
0.1
0.45
1206L110-C
0.12
0.13
3
3.4
0.06
0.07
1.5
1.8
0.03
0.04
0.75
1
0.01
0.2
0.004 0.02
0.1
0.45
1206L150-C
0.12
0.13
3
3.4
0.06
0.07
1.5
1.8
0.03
0.06
0.85
1.4
0.01
0.2
0.004 0.02
0.1
0.45
Part Numbering System
1206 L 035 /16 W R
PACKAGING STYLE
R: Tape & Reel
SERIES
QUANTITY CODE: W=3000 Y=4000
/XX: SPECIAL VOLTAGE RATING (NOT APPLICABLE TO ALL PARTS)
I HOLD HOLD CURRENT CODE (SEE TABLE BELOW)
L: LITTELFUSE SURFACE MOUNT PPTC
SIZE
www.littelfuse.com
©2006 Littelfuse
Electronics Designers Guide
1206L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Packaging
I hold
(A)
I hold Code
Packaging
Option
Quantity
Quantity &
Packaging Codes
0.125
012
Tape and Reel
3000
WR
0.16
016
Tape and Reel
3000
WR
0.20
020
Tape and Reel
4000
YR
0.25
025
Tape and Reel
4000
YR
0.35
035
Tape and Reel
4000
YR
0.50
050
Tape and Reel
4000
YR
0.75
075
Tape and Reel
3000
WR
1.00
100
Tape and Reel
3000
WR
1.10
110
Tape and Reel
3000
WR
1.50
150
Tape and Reel
2000
PR
1206L Series
Specifications are subject to change without notice.
10
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
1210L Series
Description
The 1210L series device provides surface mount
overcurrent protection for applications where space is at
a premium and resettable protection is desired.
Features
Agency Approvals
AGENCY
• Low resistance
• Low-profile
• Compatible with high
temperature solders
• RoHS compliant and lead-free
• Fast response to fault
currents
• Compact design saves
board space
AGENCY FILE NUMBER
Applications
E183209
• USB peripherals
• Disk drives
• CD-ROMs
• PC motherboards - plug
and play protection
R50082521
• Mobile phones - battery
and port protection
• PDAs / digital cameras
• Game console port
protection
Electrical Characteristics
Marking
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
1210L005
A
0.05
0.15
30
10
1210L010
B
0.10
0.30
30
10
1210L020
C
0.20
0.40
30
1210L035
E
0.35
0.70
6
1210L050
F
0.50
1.00
13.2
1210L075
G
0.75
1.50
6
1210L110
H
1.10
2.20
1210L150
K
1.50
3.00
Part Number
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
0.60
0.25
1.50
3.600
25.00
50.00
X
X
0.60
0.50
1.50
1.600
7.000
15.00
X
X
10
0.60
8.00
0.02
0.800
2.900
5.000
X
X
100
0.60
8.00
0.20
0.320
0.810
1.300
X
X
100
0.60
8.00
0.10
0.250
0.550
0.900
X
X
100
0.60
8.00
0.10
0.130
0.290
0.400
X
X
6
100
0.60
8.00
0.30
0.060
0.140
0.210
X
X
6
100
0.80
8.00
0.50
0.040
0.070
0.110
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
www.littelfuse.com
©2006 Littelfuse
11
Electronics Designers Guide
1210L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
1210L005
0.08
0.07
0.06
0.05
0.04
0.04
0.03
0.03
0.02
1210L010
0.16
0.14
0.12
0.10
0.08
0.07
0.06
0.05
0.03
1210L020
0.29
0.26
0.22
0.20
0.16
0.14
0.13
0.11
0.08
1210L035
0.47
0.45
0.40
0.35
0.33
0.28
0.24
0.21
0.18
1210L050
0.76
0.67
0.58
0.50
0.43
0.40
0.36
0.32
0.28
1210L075
1.00
0.97
0.86
0.75
0.64
0.59
0.54
0.48
0.40
1210L110
1.69
1.48
1.29
1.10
0.88
0.76
0.65
0.57
0.43
1210L150
2.13
1.92
1.71
1.50
1.26
1.14
1.01
0.89
0.71
1210L Series
0.750A
Temperature Rerating Curve
170%
1.10A
1.50A
0.350A
0.500A
0.100A
0.050A
0.200A
Average Time Current Curves
100000
Percentage of Rated Current
150%
10000
TIME IN SECONDS
1000
130%
110%
90%
70%
50%
100
30%
10%
10
-40 -30 -20
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
1
0.100
0.010
0.001
0.02
0.100
1
10
100
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.10
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
1210L Series
Specifications are subject to change without notice.
12
Electronics Designers Guide
www.littelfuse.com
1210L Series
Littelfuse
Specifications are subject to change©2006
without
notice.
POLYFUSE® Resettable PTCs
Surface Mount
Soldering Parameters
Condition
Reflow
Peak Temp/ Duration Time
260°C / 10 Sec
Time above liquids (TAL) 220°C
60 Sec ~ 100 Sec
Preheat 120°C~ 180°C
50 Sec ~ 150 Sec
0°C~35°C, <
=70%RH
Cooling
220
Temperature (°C)
Storage Condition
Soldering
260
• Recommended reflow methods: IR, vapor phase oven, hot air
oven, N2 environment for lead-free
• Devices are not designed to be wave soldered to the bottom side
of the board.
• Recommended maximum paste thickness is 0.25mm (0.010 inch)
• Devices can be cleaned using standard industry methods and
solvents.
Note: If reflow temperatures exceed the recommended profile,
devices may not meet the performance requirements.
180
120
0
Preheating
50 to 150
60 to 100
120
Time(s)
Physical Specifications
Environmental Specifications
Terminal Material
Solder-Plated Copper (Solder Material:
Matte Tin (Sn))
Operating/Storage
Temperature
-40°C to +85°C
Lead Solderability
Meets EIA Specification RS186-9E, ANSI/
J-STD-002 Category 3.
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Humidity Aging
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
Thermal Shock
MIL-STD-202 Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215
No change
Vibration
MIL-STD-883C, Method
2007.1, Condition A
No change
www.littelfuse.com
©2006 Littelfuse
13
Electronics Designers Guide
1210L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Dimensions
MARKING CODE VARIES
WITH AMPERAGE RATING
(SEE CHART)
SHOWN IS 1.5AMP RATING
C
A
K
Top
View
Side
View
B
Bottom
View
2.00 mm
(.079)
Pad
Layout
D
E
2.50 mm
(.098)
1.00 mm
(.040)
A
Part Number
B
Inches
mm
Inches
C
mm
D
Inches
mm
E
Inches mm
Inches
mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
Min.
Min.
Min Max. Min. Max.
1210L005
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.03
0.05
0.75
1.25
0.01
0.25 0.008 0.02
0.20
0.50
1210L010
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.03
0.05
0.75
1.25
0.01
0.25 0.008 0.02
0.20
0.50
1210L020
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.02
0.04
0.60
1.00
0.01
0.25 0.008 0.02
0.20
0.50
1210L035
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.02
0.03
0.50
0.85
0.01
0.25 0.008 0.02
0.20
0.50
1210L050
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.02
0.03
0.50
0.85
0.01
0.25 0.008 0.02
0.20
0.50
1210L075
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.02
0.03
0.50
0.85
0.01
0.25 0.008 0.02
0.20
0.50
1210L110
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.04
0.05
0.90
1.30
0.01
0.25 0.008 0.02
0.20
0.50
1210L150
0.12
0.14
3.00
3.43
0.09
0.11
2.35
2.80
0.03
0.07
0.80
1.80
0.01
0.25 0.008 0.02
0.20
0.50
Part Numbering System
1210 L 110 W R
PACKAGING STYLE
R: Tape & Reel
SERIES
QUANTITY CODE: W=3000 Y=4000
I HOLD HOLD CURRENT CODE (SEE TABLE BELOW)
L: LITTELFUSE SURFACE MOUNT PPTC
SIZE
Packaging
I hold
(A)
I hold Code
Packaging Option
Quantity
Quantity &
Packaging Codes
0.05
005
Tape and Reel
3000
WR
0.10
010
Tape and Reel
3000
WR
0.20
020
Tape and Reel
3000
WR
0.35
035
Tape and Reel
4000
YR
0.50
050
Tape and Reel
4000
YR
0.75
075
Tape and Reel
4000
YR
1.10
110
Tape and Reel
3000
WR
1.50
150
Tape and Reel
2000
PR
1210L Series
Specifications are subject to change without notice.
14
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
1812L Series
Description
The 1812L series device provides surface mount
overcurrent protection for applications where resettable
protection is desired.
Features
Agency Approvals
AGENCY
• Low resistance
• Low-profile
• Compatible with high
temperature solders
• RoHS compliant and lead-free
• Fast response to fault
currents
• Compact design saves
board space
AGENCY FILE NUMBER
Applications
E183209
• Plug and play protection
for motherboards and
peripherals
• USB peripherals
R50082521
• PCI cards
• Game console port
protection
Electrical Characteristics
Marking
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
1812L010
LF010
0.10
0.30
30
100
1812L014
LF014
0.14
0.34
60
10
1812L020
LF020
0.20
0.40
30
1812L050-C
LF050
0.50
1.00
1812L075-C
LF075
0.75
1.50
1812L075/24
LF075-24
0.75
1.50
24
1812L075/33
LF075-33
0.75
1.50
1812L110-C
LF110
1.10
2.20
1812L110/16
LF110-16
1.10
1812L110/33
LF110-33
1.10
1812L125-C
LF125
1812L125/6
1812L150-C
1812L150/12
1812L150/24
1812L160-C
Part Number
www.littelfuse.com
©2006 Littelfuse
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
0.8
0.50
1.50
1.600
7.000
15.000
X
X
0.8
1.50
0.15
1.500
4.000
6.000
X
X
100
0.8
8.00
0.02
0.800
2.900
5.000
X
X
15
100
0.8
8.00
0.15
0.150
0.600
1.000
X
X
13.2
100
0.8
8.00
0.20
0.100
0.260
0.450
X
X
100
0.8
8.00
0.20
0.110
0.200
0.290
X
X
33
20
0.8
8.00
0.20
0.110
0.260
0.400
X
X
6
100
0.8
8.00
0.30
0.040
0.120
0.210
X
X
1.95
16
100
0.8
8.00
0.50
0.060
0.120
0.180
X
X
1.95
33
20
0.8
8.00
0.50
0.060
0.120
0.200
X
X
1.25
2.50
15
100
0.8
8.00
0.40
0.050
0.160
0.250
X
X
LF125-6
1.25
2.50
6
100
0.8
8.00
0.40
0.050
0.090
0.140
X
X
LF150
1.50
3.00
8
100
0.8
8.00
0.30
0.040
0.070
0.110
X
X
LF150-12
1.50
3.00
12
100
0.8
8.00
0.50
0.040
0.070
0.110
X
X
LF150-24
1.50
3.00
24
20
0.8
8.00
1.50
0.040
0.070
0.120
X
X
LF160
1.60
2.80
8
100
0.8
8.00
1.00
0.030
0.066
0.100
X
X
15
Electronics Designers Guide
1812L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Electrical Characteristics (continued)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
Maximum Time
To Trip
Part Number
Marking
I hold
(A)
1812L160/12
LF160-12
1.60
2.80
12
100
0.8
8.00
1812L200-C
LF200
2.00
3.50
8
100
0.8
8.00
1812L260-C
LF260
2.60
5.00
6
100
0.8
8.00
2.50
Current
(A)
Agency
Approvals
Resistance
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1.00
0.030
0.066
0.100
X
X
2.00
0.020
0.040
0.060
X
X
0.015
0.030
0.047
X
X
Time
(Sec.)
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
50°C
60°C
70°C
85°C
1812L010
0.16
0.14
0.12
0.10
1812L014
0.23
0.19
0.17
0.14
0.08
0.07
0.06
0.05
0.03
0.12
0.10
0.09
0.08
0.06
1812L020
0.29
0.26
0.23
1812L050-C
0.77
0.68
0.59
0.20
0.17
0.15
0.14
0.12
0.10
0.50
0.44
0.40
0.37
0.33
1812L075-C
1.15
1.01
0.29
0.88
0.75
0.65
0.60
0.55
0.49
1812L075/24
1.06
0.43
0.95
0.84
0.75
0.60
0.55
0.50
0.45
0.37
1812L075/33
1812L110-C
1.10
1.00
0.88
0.75
0.66
0.60
0.56
0.47
0.36
1.59
1.43
1.26
1.10
0.95
0.87
0.80
0.71
0.60
1812L110/16
1.58
1.43
1.27
1.10
0.95
0.85
0.77
0.71
0.58
1812L110/33
1.55
1.40
1.25
1.10
0.93
0.83
.073
.063
.050
1812L125-C
2.00
1.75
1.52
1.25
1.00
0.95
0.90
0.75
0.53
1812L125/6
2.00
1.75
1.52
1.25
1.00
0.95
0.90
0.75
0.53
1812L150-C
2.06
1.93
1.79
1.50
1.28
1.10
1.02
0.80
0.68
1812L150/12
2.04
1.88
1.68
1.50
1.25
1.10
1.00
0.80
0.60
1812L150/24
2.05
1.87
1.67
1.50
1.25
1.08
0.95
0.77
0.60
1812L160-C
2.20
2.06
1.91
1.60
1.36
1.17
1.09
0.85
0.72
1812L160/12
2.18
2.01
1.79
1.60
1.34
1.16
1.07
0.83
0.60
1812L200-C
3.08
2.71
2.35
2.00
1.80
1.60
1.50
1.07
0.80
1812L260-C
4.00
3.52
3.06
2.60
2.34
2.08
1.95
1.39
1.04
Part Number
40°C
Hold Current (A)
1812L Series
Specifications are subject to change without notice.
16
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
1812L Series
0.500A
Temperature Rerating Curve
0.750A/24V
0.750A
0.750A/33V
1.10A/16V
1.10A/33V
1.10A
1.25A
1.25A/6V
1.50A/12V
1.50A-/8V
1.50A/24V
1.60A/12V
1.60A
1.60A/8
2.00A
2.60A
0.100A
0.140A
0.200A
Average Time Current Curves
100000
10000
TIME IN SECONDS
1000
100
10
1
0.100
0.010
0.001
0.02
0.100
1
10
100
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.10
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
www.littelfuse.com
©2006 Littelfuse
17
Electronics Designers Guide
1812L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Soldering Parameters
Condition
Reflow
Peak Temp/ Duration Time
260°C / 10 Sec
Time above liquids (TAL) 220°C
60 Sec ~ 100 Sec
Preheat 120°C~ 180°C
50 Sec ~ 150 Sec
0°C~35°C, <
=70%RH
Cooling
220
Temperature (°C)
Storage Condition
Soldering
260
• Recommended reflow methods: IR, vapor phase oven, hot air
oven, N2 environment for lead-free
• Devices are not designed to be wave soldered to the bottom side
of the board.
• Recommended maximum paste thickness is 0.25mm (0.010 inch)
• Devices can be cleaned using standard industry methods and
solvents.
Note: If reflow temperatures exceed the recommended profile,
devices may not meet the performance requirements.
180
120
0
Preheating
50 to 150
60 to 100
120
Time(s)
Physical Specifications
Environmental Specifications
Terminal Material
Solder-Plated Copper (Solder Material:
Matte Tin (Sn))
Operating/Storage
Temperature
-40°C to +85°C
Lead Solderability
Meets EIA Specification RS186-9E, ANSI/
J-STD-002 Category 3.
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Humidity Aging
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
Thermal Shock
MIL-STD-202 Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215
No change
Vibration
MIL-STD-883C, Method
2007.1, Condition A
No change
1812L Series
Specifications are subject to change without notice.
18
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
Dimensions
MARKING CODE VARIES
WITH AMPERAGE AND VOLTAGE RATING
(SEE CHART)
SHOWN ARE:
- 1.1A/6V RATING (LEFT)
- 1.1A/33V RATING (RIGHT)
C
A
Top
View
110
Bottom
View
110
110
-33
B
3.45 mm
(.135”)
Pad
Layout
D
E
Side
View
1.78mm
(.070”)
A
Part Number
B
Inches
mm
Inches
D
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
Min.
Min.
Min Max. Min. Max.
1812L010
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.05
0.75
1.25
0.01
0.30
0.01
0.03
0.25
0.65
1812L014
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.08
0.75
1.95
0.01
0.30
0.01
0.03
0.25
0.65
1812L020
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.02
0.04
0.55
1
0.01
0.30
0.01
0.03
0.25
0.65
1812L050-C
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.02
0.03
0.5
0.75
0.01
0.30
0.01
0.02
0.25
0.5
1812L075-C
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.02
0.03
0.5
0.75
0.01
0.30
0.01
0.02
0.25
0.5
1812L075/24
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.06
0.75
1.55
0.01
0.30
0.01
0.03
0.25
0.65
1812L075/33
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.06
0.75
1.55
0.01
0.30
0.01
0.03
0.25
0.65
1812L110-C
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.02
0.03
0.5
0.71
0.01
0.30
0.01
0.02
0.25
0.5
1812L110/16
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.05
0.75
1.25
0.01
0.30
0.01
0.03
0.25
0.65
1812L110/33
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.05
0.08
1.2
2
0.01
0.30
0.01
0.03
0.25
0.65
1812L125-C
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.05
0.75
1.25
0.01
0.30
0.01
0.02
0.25
0.5
1812L125/6
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.02
0.03
0.45
0.75
0.01
0.30
0.01
0.03
0.25
0.65
1812L150-C
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.02
0.03
0.4
0.71
0.01
0.30
0.01
0.03
0.25
0.65
1812L150/12
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.05
0.75
1.25
0.01
0.30
0.01
0.03
0.25
0.65
1812P150/24
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.07
0.8
1.8
0.01
0.30
0.01
0.03
0.25
0.65
1812L160-C
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.02
0.03
0.4
0.75
0.01
0.30
0.01
0.03
0.25
0.65
1812L160/12
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.05
0.75
1.25
0.01
0.30
0.01
0.03
0.25
0.65
1812L200-C
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.05
0.81
1.2
0.01
0.30
0.01
0.02
0.25
0.5
1812L260-C
0.17
0.19
4.37
4.73
0.12
0.13
3.07
3.41
0.03
0.05
0.8
1.34
0.01
0.30
0.01
0.02
0.25
0.5
19
Electronics Designers Guide
mm
E
mm
©2006 Littelfuse
mm
C
Inches
www.littelfuse.com
Inches
3.15 mm
(.124”)
Inches
mm
1812L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Part Numbering System
1812 L 075 /33 D R
PACKAGING STYLE
R: Tape & Reel
SERIES
QUANTITY CODE: D=1500 M=1000 P=2000
/XX: SPECIAL VOLTAGE RATING (NOT APPLICABLE TO ALL PARTS)
I HOLD CURRENT CODE (SEE TABLE BELOW)
L: LITTELFUSE SURFACE MOUNT PPTC
SIZE
Packaging
I hold
(A)
I hold Code
0.10
Packaging
Option
Quantity
Quantity &
Packaging Codes
010
Tape and Reel
1500
DR
0.14
014
Tape and Reel
1500
DR
0.20
020
Tape and Reel
2000
PR
0.50
050
Tape and Reel
2000
PR
Tape and Reel
2000
PR
/24
Tape and Reel
1500
DR
/33
Tape and Reel
1500
DR
Tape and Reel
2000
PR
/16
Tape and Reel
1500
DR
/33
Tape and Reel
1000
MR
Tape and Reel
1500
DR
Tape and Reel
2000
PR
Tape and Reel
2000
ZR
/12
Tape and Reel
1500
DR
/24
Tape and Reel
1000
MR
Tape and Reel
2000
PR
/12
Tape and Reel
1500
DR
0.75
1.10
1.25
1.50
Voltage
Option
075
110
125
150
/6
1.60
160
2.00
200
Tape and Reel
1500
DR
2.60
260
Tape and Reel
1000
ZR
1812L Series
Specifications are subject to change without notice.
20
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
2016L Series
Description
The 2016L series device provides surface mount
overcurrent protection for low voltage (≤60V) applications
where resettable protection is desired.
Features
• High voltage
• Low-profile
• RoHS compliant and lead-free
• Fast response to fault
currents
Agency Approvals
AGENCY
Applications
AGENCY FILE NUMBER
• IEE1394 port protection
• Powered ethernet port
protection (IEEE 802.3 af)
• Automotive electronic
control module protection
E183209
R50082521
• Low voltage telecom
equipment protection
Electrical Characteristics
Marking
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
2016L030
LF030
0.30
0.60
60
20
2016L050
LF050
0.55
1.10
60
20
2016L100
LF100
1.10
2.20
15
Part Number
2016L100/33
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1.40
1.50
3.00
0.500
1.400
2.300
X
X
1.40
2.50
5.00
0.200
0.700
1.000
X
X
40
1.40
8.00
0.50
0.100
0.250
0.400
X
X
LF100-33
1.10
2.20
33
40
1.40
8.00
0.50
0.100
0.250
0.400
X
X
2016L150
LF150
1.50
3.00
15
40
1.40
8.00
1.00
0.070
0.130
0.180
X
X
2016L200
LF200
2.00
4.20
6
40
1.40
8.00
3.00
0.048
0.070
0.100
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
www.littelfuse.com
©2006 Littelfuse
21
Electronics Designers Guide
2016L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
2016L030
0.45
0.40
0.35
0.30
0.25
0.23
0.20
0.18
0.14
2016L050
0.93
0.80
0.65
0.50
0.38
0.32
0.25
0.19
0.09
2016L100
1.66
1.47
1.29
1.10
0.91
0.83
0.73
0.64
0.50
2016L100/33
1.66
1.47
1.29
1.10
0.91
0.83
0.73
0.64
0.50
2016L150
2.26
2.00
1.76
1.50
1.24
1.13
1.00
0.87
0.68
2016L200
2.80
2.50
2.19
2.00
1.84
1.74
1.50
1.34
1.14
Temperature Rerating Curve
1.00A
1.00A/33V
1.50A
2.00A
0.300A
0.160A
2016L Series
Average Time Current Curves
100000
10000
TIME IN SECONDS
1000
100
10
1
0.100
0.010
A: 2016L050
B: 2016L030
2016L100
2016L100/33
2016L200
2016L150
0.001
0.20
1
10
100
1000
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.10
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
2016L Series
Specifications are subject to change without notice.
22
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
Soldering Parameters
Condition
Reflow
Peak Temp/ Duration Time
260°C / 10 Sec
Time above liquids (TAL) 220°C
60 Sec ~ 100 Sec
Preheat 120°C~ 180°C
50 Sec ~ 150 Sec
0°C~35°C, <
=70%RH
Cooling
220
Temperature (°C)
Storage Condition
Soldering
260
• Recommended reflow methods: IR, vapor phase oven, hot air
oven, N2 environment for lead-free
• Devices are not designed to be wave soldered to the bottom side
of the board.
• Recommended maximum paste thickness is 0.25mm (0.010 inch)
• Devices can be cleaned using standard industry methods and
solvents.
Note: If reflow temperatures exceed the recommended profile,
devices may not meet the performance requirements.
180
120
0
Preheating
50 to 150
60 to 100
120
Time(s)
Physical Specifications
Environmental Specifications
Terminal Material
Solder-Plated Copper (Solder Material:
Matte Tin(Sn))
Operating/Storage
Temperature
-40°C to +85°C
Lead Solderability
Meets EIA Specification RS186-9E, ANSI/
J-STD-002 Category 3.
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Humidity Aging
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
Thermal Shock
MIL-STD-202 Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215
No change
Vibration
MIL-STD-883C, Method
2007.1, Condition A
No change
www.littelfuse.com
©2006 Littelfuse
23
Electronics Designers Guide
2016L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Dimensions (mm)
MARKING CODE VARIES
WITH AMPERAGE AND VOLTAGE RATING
(SEE CHART)
SHOWN ARE:
- 1.0A/15V RATING (LEFT)
- 1.0A/33V RATING (RIGHT)
C
A
Top
View
100
Bottom
View
100
100
-33
B
3.40 mm
(.133”)
Pad
Layout
D
E
Side
View
4.60 mm
(.181”)
1.50 mm
(.059”)
A
Part Number
B
Inches
mm
C
Inches
mm
Inches
D
mm
E
Inches mm
Inches
mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min.
Min.
Min Max. Min. Max.
2016L030
0.19
0.21
4.72
5.44
0.15
0.17
3.7
4.43
0.03
0.05
0.75
1.25
0.01
0.03
0.01
0.03
0.25
0.65
2016L050
0.19
0.21
4.72
5.44
0.15
0.17
3.7
4.43
0.05
0.08
1.2
2
0.01
0.03
0.01
0.03
0.25
0.65
2016L100
0.19
0.21
4.72
5.44
0.15
0.17
3.7
4.43
0.02
0.03
0.5
0.75
0.01
0.03
0.01
0.03
0.25
0.65
2016L100/33
0.19
0.21
4.72
5.44
0.15
0.17
3.7
4.43
0.03
0.05
0.75
1.25
0.01
0.03
0.01
0.03
0.25
0.65
2016L150
0.19
0.21
4.72
5.44
0.15
0.17
3.7
4.43
0.03
0.06
0.75
1.55
0.01
0.03
0.01
0.03
0.25
0.65
2016L200
0.19
0.21
4.72
5.44
0.15
0.17
3.7
4.43
0.02
0.03
0.5
0.75
0.01
0.03
0.01
0.03
0.25
0.65
Part Numbering System
2016 L 100 /33 D R
PACKAGING STYLE
R: Tape & Reel
SERIES
QUANTITY CODE: D=1500 M=1000 P=2000
/XX: SPECIAL VOLTAGE RATING (NOT APPLICABLE TO ALL PARTS)
I HOLD CURRENT CODE (SEE TABLE BELOW)
L: LITTELFUSE SURFACE MOUNT PPTC
SIZE
Packaging
I hold
(A)
I hold Code
0.30
0.55
1.10
100
1.50
150
2.00
200
Voltage
Option
Packaging
Option
Quantity
030
Tape and Reel
1500
DR
050
Tape and Reel
1000
MR
Tape and Reel
2000
PR
Tape and Reel
1500
DR
Tape and Reel
1500
DR
Tape and Reel
2000
PR
2016L Series
Specifications are subject to change without notice.
/33
24
Electronics Designers Guide
Quantity &
Packaging Codes
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
2920L Series
Description
The 2920L series device provides surface mount
overcurrent protection for medium voltage (≤60V)
applications where resettable protection is desired.
Features
• High voltage
• Low-profile
• RoHS compliant and lead-free
• Fast response to fault
currents
Agency Approvals
AGENCY
Applications
AGENCY FILE NUMBER
• IEE1394 port protection
• Powered ethernet port
protection (IEEE 802.3 af)
• Automotive electronic
control module protection
E183209
R50082521
• Low voltage telecom
equipment protection
Electrical Characteristics
Marking
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
2920L030
LF030
0.30
0.60
60
10
2920L050
LF050
0.50
1.00
60
10
2920L075
LF075
0.75
1.50
30
2920L100
LF100
1.10
2.20
2920L125
LF125
1.25
2920L150
LF150
1.50
2920L185
LF185
2920L200
Part Number
2920L200/24
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1.50
1.50
3.00
1.200
3.000
4.800
X
X
1.50
2.50
4.00
0.350
0.870
1.400
X
X
40
1.50
8.00
0.30
0.350
0.670
1.000
X
X
33
40
1.50
8.00
0.50
0.120
0.270
0.410
X
X
2.50
15
40
1.50
8.00
2.00
0.070
0.160
0.250
X
X
3.00
33
40
1.50
8.00
2.00
0.080
0.150
0.230
X
X
1.85
3.70
33
40
1.50
8.00
2.50
0.065
0.110
0.150
X
X
LF200
2.00
4.00
15
40
1.50
8.00
5.00
0.050
0.090
0.125
X
X
LF200-24
2.00
4.00
24
40
1.50
8.00
5.00
0.050
0.090
0.125
X
X
2920L250
LF250
2.50
5.00
15
40
1.50
8.00
10.00
0.035
0.060
0.085
X
X
2920L260
LF260
2.60
5.00
6
40
1.50
8.00
10.00
0.025
0.050
0.075
X
X
2920L300
LF300
3.00
5.00
6
40
1.50
8.00
20.00
0.015
0.033
0.048
X
X
LF300-15
3.00
5.00
15
40
1.50
8.00
20.00
0.015
0.033
0.048
X
X
2920L300/15
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
www.littelfuse.com
©2006 Littelfuse
25
Electronics Designers Guide
2920L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
2920L030
0.45
0.40
0.35
0.30
0.25
0.23
0.20
0.17
0.14
2920L050
0.76
0.67
0.59
0.50
0.42
0.38
0.33
0.29
0.23
2920L075
1.13
1.01
0.88
0.75
0.62
0.56
0.50
0.44
0.34
2920L100
1.66
1.47
1.29
1.10
0.91
0.83
0.73
0.64
0.50
2920L125
1.89
1.68
1.46
1.25
1.04
0.94
0.83
0.73
0.56
2920L150
2.27
2.01
1.76
1.50
1.25
1.13
1.00
0.87
0.74
2920L185
2.80
2.47
2.17
1.85
1.54
1.39
1.22
1.07
0.85
2920L200
3.02
2.68
2.34
2.00
1.66
1.50
1.32
1.16
0.90
2920L200/24
3.14
2.77
2.42
2.00
1.73
1.56
1.38
1.20
0.98
2920L250
3.78
3.35
2.93
2.50
2.08
1.88
1.65
1.45
1.13
2920L260
3.64
3.25
2.91
2.60
2.26
2.08
1.95
1.74
1.48
2920L300
4.53
4.02
3.51
3.00
2.52
2.26
1.99
1.75
1.34
2920L300/15
4.20
3.85
3.44
3.00
2.69
2.50
2.31
2.12
1.83
2920L Series
Temperature Rerating Curve
1.25A
1.50A
1.85A
2.00A/24V
2.00A
2.50A
2.60A
3.00A/15V
3.00A
1.00A
0.500A
0.750A
0.300A
0.100A
Average Time Current Curves
100000
10000
TIME IN SECONDS
1000
100
10
1
0.100
0.010
0.001
0.02
0.100
1
10
100
CURRENT IN AMPERES
The average time currentSpecifications
curves and are
temperature
rerating
curve
performance is affected
subject to change
without
notice.
provided as guidance only. CustomerAKL
must
V3.9 06.05.10
verify the performance in their application.
by 1.00
a number
variables,
theseplaces.
curves
Note:
means theor
number
one with and
two decimal
2920L Series
Specifications are subject to change without notice.
26
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
Soldering Parameters
Condition
Reflow
Peak Temp/ Duration Time
260°C / 10 Sec
Time above liquids (TAL) 220°C
60 Sec ~ 100 Sec
Preheat 120°C~ 180°C
50 Sec ~ 150 Sec
0°C~35°C, <
=70%RH
Cooling
220
Temperature (°C)
Storage Condition
Soldering
260
• Recommended reflow methods: IR, vapor phase oven, hot air
oven, N2 environment for lead-free
• Devices are not designed to be wave soldered to the bottom side
of the board.
• Recommended maximum paste thickness is 0.25mm (0.010 inch)
• Devices can be cleaned using standard industry methods and
solvents.
Note: If reflow temperatures exceed the recommended profile,
devices may not meet the performance requirements.
180
120
0
Preheating
50 to 150
60 to 100
120
Time(s)
Physical Specifications
Environmental Specifications
Terminal Material
Solder-Plated Copper (Solder Material:
Matte Tin(Sn))
Operating/Storage
Temperature
-40°C to +85°C
Lead Solderability
Meets EIA Specification RS186-9E, ANSI/
J-STD-002 Category 3.
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Humidity Aging
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
Thermal Shock
MIL-STD-202 Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215
Vibration
MIL-STD-883C, Method
2007.1, Condition A
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©2006 Littelfuse
27
Electronics Designers Guide
2920L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Surface Mount
Dimensions (mm)
MARKING CODE VARIES
WITH AMPERAGE AND VOLTAGE RATING
(SEE CHART)
SHOWN ARE:
- 1.5A/33V RATING (LEFT)
- 2.0A/24V RATING (RIGHT)
C
A
Top
View
150
Bottom
View
150
200
-24
B
4.60 mm
(.181”)
Pad
Layout
D
E
Side
View
5.30 mm
(.209”)
2.0mm
(.079”)
A
Part Number
Inches
B
mm
Inches
C
mm
Inches
D
mm
E
Inches mm
Inches
mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
Min.
Min.
2920L030
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
Min Max. Min. Max.
0.08
0.25
2
2920L050
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
0.08
0.25
2
2920L075
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
0.08
0.25
2
2920L100
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.02
0.04
0.55
1
0.01
0.3
0.01
0.08
0.25
2
2920L125
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.02
0.04
0.55
1
0.01
0.3
0.01
0.08
0.25
2
2920L150
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
0.08
0.25
2
2920L185
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
0.08
0.25
2
2920L200
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
0.08
0.25
2
2920L200/24
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
0.08
0.25
2
2920L250
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
0.08
0.25
2
2920L260
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.02
0.04
0.55
1
0.01
0.3
0.01
0.08
0.25
2
2920L300
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
0.08
0.25
2
2920L300/15
0.26
0.31
6.73
7.98
0.19
0.21
4.8
5.44
0.03
0.05
0.75
1.25
0.01
0.3
0.01
0.08
0.25
2
Part Numbering System
2920 L 200 /24 D R
PACKAGING STYLE
R: Tape & Reel
SERIES
QUANTITY CODE: D=1500 P=2000
/XX: SPECIAL VOLTAGE RATING (NOT APPLICABLE TO ALL PARTS)
I HOLD CURRENT CODE (SEE TABLE BELOW)
L: LITTELFUSE SURFACE MOUNT PPTC
SIZE
2920L Series
Specifications are subject to change without notice.
28
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Surface Mount
Packaging
I hold (A)
I hold Code
Voltage
Option
Packaging
Option
Quantity
Quantity &
Packaging Codes
0.30
030
Tape and Reel
1500
DR
0.50
050
Tape and Reel
1500
DR
0.75
075
Tape and Reel
1500
DR
1.10
100
Tape and Reel
2000
PR
1.25
125
Tape and Reel
2000
PR
1.50
150
Tape and Reel
1500
DR
1.85
185
Tape and Reel
1500
DR
2.00
200
2.50
Tape and Reel
1500
DR
Tape and Reel
1500
DR
250
Tape and Reel
1500
DR
2.60
260
Tape and Reel
2000
PR
3.00
300
Tape and Reel
1500
DR
Tape and Reel
1500
DR
www.littelfuse.com
©2006 Littelfuse
/24
/15
29
Electronics Designers Guide
2920L Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Axial Leaded Strap
LR Series
Description
The new LR series device provides reliable, noncycling
protection against overcharging and short circuits events
for rechargeable battery cells where resettable protection
is desired.
Features
• RoHS compliant and lead-free
• Weldable nickel terminals
• Slim, low profile design
Agency Approvals
AGENCY
AGENCY FILE NUMBER
• Compact design saves
board space
• Low resistance
Applications
E183209
• Rechargeable battery cell
protection
R50082521
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
15LR190
1.9
3.9
15
100
15LR190S
1.9
3.9
15
15LR260
2.6
5.8
15LR260S
2.6
5.8
15LR380
3.8
20LR450
20LR550
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1.2
9.50
5.00
0.039
0.072
0.102
X
X
100
1.2
9.50
5.00
0.039
0.072
0.102
X
X
15
100
2.5
13.00
5.00
0.020
0.042
0.063
X
X
15
100
2.5
13.00
5.00
0.020
0.042
0.063
X
X
8.3
15
100
2.5
19.00
5.00
0.013
0.026
0.037
X
X
4.5
8.9
20
100
2.5
22.50
5.00
0.011
0.020
0.028
X
X
5.5
10.5
20
100
2.8
27.50
5.00
0.009
0.016
0.022
X
X
20LR600
6.0
11.7
20
100
2.8
30.00
5.00
0.007
0.014
0.019
X
X
20LR730
7.3
14.1
20
100
3.3
30.00
5.00
0.006
0.012
0.015
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
LR Series
Specifications are subject to change without notice.
30
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
15LR190
2.80
2.50
2.30
1.90
1.60
1.50
1.40
1.20
1.00
15LR190S
2.80
2.50
2.30
1.90
1.60
1.50
1.40
1.20
1.00
15LR260
3.80
3.40
3.10
2.60
2.20
2.00
1.90
1.70
1.40
15LR260S
3.80
3.40
3.10
2.60
2.20
2.00
1.90
1.70
1.40
15LR380
5.50
4.90
4.40
3.80
3.30
3.00
2.80
2.50
2.10
20LR450
6.50
5.80
5.30
4.50
3.90
3.60
3.30
2.90
2.50
20LR550
8.00
7.10
6.20
5.50
4.70
4.30
4.00
3.60
3.00
20LR600
8.70
7.80
7.10
6.00
5.20
4.70
4.40
3.90
3.30
20LR730
10.60
9.50
8.60
7.30
6.30
5.70
5.40
4.70
4.00
Average Time Current Curves
Temperature Rerating Curve
170%
Percentage of Rated Current
150% B
130%
A
110%
90%
70%
A
50%
B
30%
10%
-40 -30 -20
A: 15LR380
-10
0
10
20 30
40
Temperature (°C)
A: 15LR190,15LR190S, 15LR260, 15LR260S,
20LR450
C: 20LR730
50
60
70
80
B: 15LR380, 20LR550,
20LR600, 20LR730
B: 20LR450
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
www.littelfuse.com
©2006 Littelfuse
31
Electronics Designers Guide
LR Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Physical Specifications
Terminal Material
Environmental Specifications
0.13mm nominal thickness, quarter-hard
nickel
Insulating Material Polyester tape
Operating/Storage
Temperature
-40°C to +85°C
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+70°C, 1000 hours
±10% typical resistance change
Humidity Aging
+85°C, 85%R.H. 70days
±5% typical resistance change
Vibration
MIL-STD-883C, Method
2007.1, Condition A
No change
Dimensions
Figure 1
Figure 2
SLIT
0.5 x 4.0 NOMINAL
(.02”x .15”)
A
A
Marking
B
E
D1
Marking
B
D2
E
D1
D2
C
Part
Number
A
Inches
C
B
mm
C
Inches
mm
Inches
D1
mm
D2
E
Inches mm Inches mm
Inches
Figure
mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max.
Min.
Min.
Min.
Min.
Min Max. Min. Max.
15LR190
0.78
0.87 19.90 22.10 0.19
0.22
4.90
5.50
0.02
0.04
0.60
1.00
0.22
5.50
0.22
5.50
0.01
0.22
3.90
4.10
1
15LR190S
0.78
0.87 19.90 22.10 0.19
0.22
4.90
5.50
0.02
0.04
0.60
1.00
0.22 Series
5.50
Product
0.22
5.50
0.01
0.22
3.90
4.10
2
15LR260
0.82
0.91 20.90 23.10 0.19
0.22
4.90
5.50
0.02
0.16
0.16
0.82
0.91 20.90 23.10 0.19
0.22
4.90
5.50
0.04
LR 0.60
190S
0.02 XX9R
0.04 0.60
1.00
15LR260S
1.00
0.16
15LR380S
0.94
1.02 24.00 26.00 0.27
0.30
6.90
7.50
0.02
0.04
0.60
1.00
0.16
20LR450S
0.94
1.02 24.00 26.00 0.39
Trademark
0.41
9.90 10.50 0.02
0.04
20LR550S
1.38
1.46 35.00 37.00 0.27
0.30
0.02
20LR600S
0.94
1.02 24.00 26.00 0.55
0.57 13.90 14.50 0.02
20LR730S
1.07
1.15 27.10 29.10 0.55
0.57 13.90 14.50 0.02
LR Series
Specifications are subject to change without notice.
Littelfuse
6.90
7.50
Top Side
4.10
0.01
0.16
3.90
4.10
1
4.10
0.16
4.10
0.01
0.16
3.90
4.10
2
4.10
0.16
4.10
0.01
0.16
4.90
5.10
1
0.60
1.00(Contact
0.21Littelfuse
5.30
0.21
5.30
0.01
0.21
5.90
6.10
1
0.04
0.60
1.00
0.21
5.30
0.21
5.30
0.01
0.21
4.90
5.10
1
0.04
0.60
1.00
0.16
4.10
0.16
4.10
0.01
0.16
5.90
6.10
1
0.04
0.60
1.00
0.16
4.10
0.16
4.10
0.01
0.16
5.90
6.10
1
Lot Number
for additional
information)
32
Electronics Designers Guide
4.10
Current Rating
www.littelfuse.com
©2006 Littelfuse
D2
D1
C
D2
C
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Part Marking System
Part Numbering System
15 LR 190 S U
Top Side
Product Series
LR
190S
XX9R
Littelfuse
Trademark
QUANTITY CODE
U: 500 (bulk)
Current Rating
LEAD OPTIONS: Blank = standard
S = slit lead
Lot Number
(Contact Littelfuse
for additional
information)
HOLD CURRENT (VALUE DIVIDED BY 100 = HOLD CURRENT IN AMPS)
SERIES
Voltage Rating (VDC)
Packaging
I hold
(A)
All Ratings
www.littelfuse.com
©2006 Littelfuse
Packaging
Option
Quantity
Quantity &
Packaging Codes
Bulk
500
U
33
Electronics Designers Guide
LR Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Axial Leaded Strap
LT Series
Description
The new LT series device provides reliable, noncycling
protection against overcharging and short circuits events
for rechargeable battery cells where resettable protection
is desired.
Features
• RoHS compliant and lead-free
• Weldable nickel terminals
• Compact design saves board space
Agency Approvals
AGENCY
• Low resistance
• Provides overcurrent protection at 100°C trip temperature
AGENCY FILE NUMBER
Applications
E183209
• Rechargeable battery cell protection
- Mobile phones
- Laptop computers
R50082521
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
15LT070
0.7
1.5
15
100
15LT070S
0.7
1.5
15
24LT100
1.0
2.5
24LT100S
1.0
2.5
24LT100SS
1.0
24LT180
24LT180S
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1.0
3.50
5.00
0.100
0.200
0.340
X
X
100
1.0
3.50
5.00
0.100
0.200
0.340
X
X
24
100
1.5
5.00
7.00
0.070
0.130
0.260
X
X
24
100
1.5
5.00
7.00
0.070
0.130
0.260
X
X
2.5
24
100
1.5
5.00
7.00
0.070
0.130
0.260
X
X
1.8
3.8
24
100
2.0
9.00
2.90
0.040
0.068
0.120
X
X
1.8
3.8
24
100
2.0
9.00
2.90
0.040
0.068
0.120
X
X
24LT180SS
1.8
3.8
24
100
2.0
9.00
2.90
0.040
0.068
0.120
X
X
24LT190
1.9
4.2
24
100
1.9
10.00
3.00
0.030
0.057
0.100
X
X
24LT190S
1.9
4.2
24
100
1.9
10.00
3.00
0.030
0.057
0.100
X
X
24LT260
2.6
5.2
24
100
2.3
13.0
5.0
0.025
0.042
0.076
X
X
24LT300
3.0
6.3
24
100
2.0
15.0
4.0
0.015
0.031
0.055
X
X
24LT310
3.1
6.0
24
100
2.5
16.0
5.0
0.018
0.030
0.055
X
X
24LT340
3.4
6.8
24
100
2.7
17.0
5.0
0.016
0.027
0.050
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
LT Series
Specifications are subject to change without notice.
34
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
20°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
15LT070
1.20
1.09
0.85
0.70
0.50
0.45
0.35
0.28
0.16
15LT070S
1.20
1.09
0.85
0.70
0.50
0.45
0.35
0.28
0.16
24LT100
1.86
1.60
1.40
1.00
0.80
0.70
0.60
0.44
0.23
24LT100S
1.86
1.60
1.40
1.00
0.83
0.70
0.60
0.44
0.23
24LT100SS
1.86
1.60
1.40
1.00
0.83
0.70
0.60
0.44
0.23
24LT180
3.13
2.68
2.20
1.80
1.33
1.10
0.90
0.65
0.36
24LT180S
3.13
2.68
2.20
1.80
1.33
1.10
0.90
0.65
0.36
24LT180SS
3.13
2.68
2.20
1.80
1.33
1.10
0.90
0.65
0.36
24LT190
3.32
2.86
2.40
1.90
1.48
1.25
1.10
0.79
0.43
24LT260
4.30
3.72
3.10
2.60
1.98
1.69
1.40
1.11
0.60
24LT300
5.10
4.40
3.70
3.00
2.30
1.95
1.60
1.25
0.69
24LT310
5.36
4.58
3.70
3.10
2.36
2.01
1.70
1.30
0.71
24LT340
5.52
4.79
4.00
3.40
2.60
2.24
1.90
1.51
0.78
Average Time Current Curves
Temperature Rerating Curve
190%
170%
Percentage of Rated Current
150%
130%
110%
90%
70%
50%
30%
10%
-40 -30 -20
A: 24LT100S
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
C: 24LT190
B: 24LT180
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
www.littelfuse.com
©2006 Littelfuse
35
Electronics Designers Guide
LT Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Physical Specifications
Environmental Specifications
0.13mm nominal thickness, quarter-hard
nickel
Terminal Material
Insulating Material Polyester tape
Operating/Storage
Temperature
-40°C to +85°C
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+70°C, 1000 hours
±10% typical resistance change
Humidity Aging
+85°C, 85%R.H. 7days
±5% typical resistance change
Vibration
MIL-LTD-883C, Condition A
No change
Dimensions
Figure 1
SLIT
0.5 x 4.0 NOMINAL
(.02”x .15”)
A
SLIT
E
D1
Marking
B
D2
D1
Number
A
Inches
Inches
E
D1
D2
D2
C
C
B
mm
Marking
B
E
C
Part
0.5 x 4.0 NOMINAL
(.02”x .15”)
A
A
Marking
B
Figure 3
Figure 2
C
mm
Inches
D1
mm
in.
D2
mm
in.
E
mm
Fig.
Inches
mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Min. Min. Min. Min Max. Min. Max.
15LT070
0.78 0.87 19.9 22.1 0.19 0.20
4.9
5.2
Top Side
0.03 0.05
0.7
1.2Product0.22
5.5
Series
0.22
5.5
0.01 0.22
3.9
4.1
1
15LT070S
0.78 0.87 19.9 22.1 0.19 0.20
4.9
5.2
0.03 0.05
LT
1.2
0.22
5.5
0.22
5.5
0.01 0.22
3.9
4.1
2
24LT100
0.82 0.91 20.9 23.1 0.19 0.20
4.9
5.2
XXJJ 0.6
0.02 0.04
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
1
24LT100S
0.82 0.91 20.9 23.1 0.19 0.20
Littelfuse
4.9
5.2
Trademark
0.02 0.04
Lot Number
1
0.16 4.1
(Contact Littelfuse
0.16
4.1
0.01 0.16
3.9
4.1
2
190S
0.7
0.6
Current Rating
for additional
information)
24LT100SS
0.82 0.91 20.9 23.1 0.19 0.20
4.9
5.2
0.02 0.04
0.6
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
3
24LT180
0.94 1.02
24
26
0.19 0.20
4.9
5.2
0.02 0.04
0.6
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
1
24LT180S
0.94 1.02
24
26
0.19 0.20
4.9
5.2
0.02 0.04
0.6
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
2
24LT180SS
0.94 1.02
24
26
0.19 0.20
4.9
5.2
0.02 0.04
0.6
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
3
24LT190
0.84 0.92 21.3 23.4 0.40 0.43 10.2
11
0.02 0.04
0.5
1
0.20
5
0.20
5
0.01 0.20
4.8
5.4
1
24LT190S
0.84 0.92 21.3 23.4 0.40 0.43 10.2
11
0.02 0.04
0.5
1
0.20
5
0.20
5
0.01 0.20
4.8
5.4
2
24LT260
0.94 1.02
0.43 0.47 10.8 11.9 0.02 0.04
0.6
1
0.20
5
0.20
5
0.01 0.20
5.9
6.1
1
24LT300
1.12 1.25 28.4 31.8 0.51 0.53
13.5 0.02 0.04
0.5
1.1
0.25
6.3
0.25
6.3
0.00 0.25
6
6.6
1
24LT310
0.94 1.02
24
26
0.58 0.63 14.8 15.9 0.02 0.04
0.6
1
0.20
5
0.20
5
0.01 0.20
5.9
6.1
1
24LT340
0.94 1.02
24
26
0.58 0.63 14.8 15.9 0.02 0.04
0.6
1
0.20
5
0.20
5
0.01 0.20
5.9
6.1
1
24
26
LT Series
Specifications are subject to change without notice.
13
36
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Physical Specifications
Environmental Specifications
0.13mm nominal thickness, quarter-hard
nickel
Terminal Material
Insulating Material Polyester tape
Operating/Storage
Temperature
-40°C to +85°C
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+70°C, 1000 hours
±10% typical resistance change
Humidity Aging
+85°C, 85%R.H. 7days
±5% typical resistance change
Vibration
MIL-LTD-883C, Condition A
No change
Dimensions
Figure 1
SLIT
0.5 x 4.0 NOMINAL
(.02”x .15”)
A
SLIT
E
D1
Marking
B
D2
D1
Number
A
Inches
Inches
E
D1
D2
D2
C
C
B
mm
Marking
B
E
C
Part
0.5 x 4.0 NOMINAL
(.02”x .15”)
A
A
Marking
B
Figure 3
Figure 2
C
mm
Inches
D1
mm
in.
D2
mm
in.
E
mm
Fig.
Inches
mm
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Min. Min. Min. Min Max. Min. Max.
15LT070
0.78 0.87 19.9 22.1 0.19 0.20
4.9
5.2
Top Side
0.03 0.05
0.7
1.2Product0.22
5.5
Series
0.22
5.5
0.01 0.22
3.9
4.1
1
15LT070S
0.78 0.87 19.9 22.1 0.19 0.20
4.9
5.2
0.03 0.05
LT
1.2
0.22
5.5
0.22
5.5
0.01 0.22
3.9
4.1
2
24LT100
0.82 0.91 20.9 23.1 0.19 0.20
4.9
5.2
XXJJ 0.6
0.02 0.04
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
1
24LT100S
0.82 0.91 20.9 23.1 0.19 0.20
Littelfuse
4.9
5.2
Trademark
0.02 0.04
Lot Number
1
0.16 4.1
(Contact Littelfuse
0.16
4.1
0.01 0.16
3.9
4.1
2
190S
0.7
0.6
Current Rating
for additional
information)
24LT100SS
0.82 0.91 20.9 23.1 0.19 0.20
4.9
5.2
0.02 0.04
0.6
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
3
24LT180
0.94 1.02
24
26
0.19 0.20
4.9
5.2
0.02 0.04
0.6
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
1
24LT180S
0.94 1.02
24
26
0.19 0.20
4.9
5.2
0.02 0.04
0.6
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
2
24LT180SS
0.94 1.02
24
26
0.19 0.20
4.9
5.2
0.02 0.04
0.6
1
0.16
4.1
0.16
4.1
0.01 0.16
3.9
4.1
3
24LT190
0.84 0.92 21.3 23.4 0.40 0.43 10.2
11
0.02 0.04
0.5
1
0.20
5
0.20
5
0.01 0.20
4.8
5.4
1
24LT190S
0.84 0.92 21.3 23.4 0.40 0.43 10.2
11
0.02 0.04
0.5
1
0.20
5
0.20
5
0.01 0.20
4.8
5.4
2
24LT260
0.94 1.02
0.43 0.47 10.8 11.9 0.02 0.04
0.6
1
0.20
5
0.20
5
0.01 0.20
5.9
6.1
1
24LT300
1.12 1.25 28.4 31.8 0.51 0.53
13.5 0.02 0.04
0.5
1.1
0.25
6.3
0.25
6.3
0.00 0.25
6
6.6
1
24LT310
0.94 1.02
24
26
0.58 0.63 14.8 15.9 0.02 0.04
0.6
1
0.20
5
0.20
5
0.01 0.20
5.9
6.1
1
24LT340
0.94 1.02
24
26
0.58 0.63 14.8 15.9 0.02 0.04
0.6
1
0.20
5
0.20
5
0.01 0.20
5.9
6.1
1
www.littelfuse.com
©2006 Littelfuse
24
26
13
37
Electronics Designers Guide
LT Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Axial Leaded Strap
ST Series
Description
The new ST series device provides reliable, noncycling
protection against overcharging and short circuits events
for rechargeable battery cells where resettable protection
is desired.
Features
• RoHS compliant and lead-free
• Low resistance
• Weldable nickel terminals
Agency Approvals
AGENCY
AGENCY FILE NUMBER
• Provides overcurrent
protection at 125°C trip
temperature
Applications
E183209
• Rechargeable battery cell
protection
R50082521
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
15ST120
1.2
2.7
15
100
15ST120S
1.2
2.7
15
100
15ST175
1.75
3.8
15
15ST175S
1.75
3.8
15
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1.2
6.00
5.00
0.085
0.160
0.220
X
X
1.2
6.00
5.00
0.085
0.160
0.220
X
X
100
2.5
8.75
5.00
0.050
0.090
0.120
X
X
100
2.5
8.75
5.00
0.050
0.090
0.120
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
ST Series
Specifications are subject to change without notice.
38
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
15ST120
1.90
1.70
1.50
1.20
1.00
0.90
0.80
0.70
0.50
15ST120S
1.90
1.70
1.50
1.20
1.00
0.90
0.80
0.70
0.50
15ST175
2.50
2.30
2.00
1.75
1.50
1.30
1.20
1.10
0.90
15ST175S
2.50
2.30
2.00
1.75
1.50
1.30
1.20
1.10
0.90
Average Time Current Curves
Temperature Rerating Curve
170%
Percentage of Rated Current
150%
130%
110%
90%
70%
50%
30%
10%
-40 -30 -20
A: 15ST120/15ST120S
D:
B: 15ST175/15ST175S
E:
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
C:
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
www.littelfuse.com
©2006 Littelfuse
39
Electronics Designers Guide
ST Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Physical Specifications
Environmental Specifications
0.13mm nominal thickness, quarter-hard nickel
Lead Material
Insulating Material Polyester tape
Operating/Storage
Temperature
-40°C to +85°C
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+70°C, 1000 hours
±5% typical resistance change
Humidity Aging
+85°C, 85%R.H. 7days
±5% typical resistance change
Vibration
MIL-STD-883C, Condition A
No change
Dimensions
Figure 1
Figure 2
0.5 x 4.0 NOMINAL
(.02”x .15”)
SLIT
A
A
Marking
B
E
D1
Figure 1
D2
Figure 2
SLIT
A
A
Part
Number
B
D1
B
Inches
mm
Marking
B
D1
C
0.5 x 4.0 NOMINAL
(.02”x .15”)
mm
D2
C
C
A
Inches
Inches
D1
mm
E
B
Min. Max. Min.
Max. Min.
Max. Min. Marking
Max. Min. Max. Min. E Max. Min.
15ST120
0.78
mm
Fig.
Min.
Min.
Min.
Min
Max. Min. Max.
0.22
5.5
0.22
5.5
0.01
0.22
3.9
4.1
1
1
0.22
Product
Series
5.5
0.22
5.5
0.01
0.22
3.9
4.1
2
19.9
22.1
0.19
0.20
4.9
5.2
0.02
19.9
C
22.1
0.19
0.20
4.9
5.2
0.02
0.04
0.6
0.82
0.91
20.9
23.1
0.19
0.20
4.9
5.2
0.02
ST
0.04
0.6
1
0.16
4.1
Current Rating
0.16
4.1
0.01
0.16
3.9
4.1
1
15ST175S 0.82
0.91
20.9
23.1
0.19
0.20
4.9
5.2
0.02 XX9U
0.04
0.6
1
0.16
0.16
4.1
0.01
0.16
3.8
4.2
2
15ST175
D2
D1
Top Side
0.6
E
Inches
0.87
15ST120S 0.78
0.04
D2
Inches mm Inches mm
Marking
0.87
E
D2
120
Littelfuse
Trademark
1
C
4.1
Lot Number
(Contact Littelfuse
for additional
information)
Part Marking System
Part Numbering System
15 ST 175 S U
Top Side
Product Series
ST
120
XX9U
Littelfuse
Trademark
QUANTITY CODE: U = 500 (bulk)
Current Rating
LEAD OPTIONS: Blank = standard
S = slit lead
Lot Number
(Contact Littelfuse
for additional
information)
HOLD CURRENT (VALUE DIVIDED BY 100 = HOLD CURRENT IN AMPS)
SERIES
VOLTAGE RATING (VDC)
Packaging
I hold
(A)
All Ratings
Packaging
Option
Quantity
Quantity &
Packaging Codes
Bulk
500
U
ST Series
Specifications are subject to change without notice.
40
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Axial Leaded Strap
VL Series
Description
The new VL series device provides reliable, noncycling
protection against overcharging and short circuits events
for rechargeable battery cells where resettable protection
is desired.
Features
• Compact design saves board space
• Weldable nickel terminals
• Low resistance
• Slim, low profile design
Agency Approvals
AGENCY
• RoHS compliant and lead-free
AGENCY FILE NUMBER
Applications
E183209
• Rechargeable battery cell
protection
R50082521
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
12VL170
1.70
4.10
12
100
12VL175L
1.75
4.20
12
12VL175XL
1.75
4.20
12
12VL230
2.30
5.00
12
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1.4
8.50
5.00
0.018
0.032
0.064
X
X
100
1.4
8.75
5.00
0.017
0.031
0.062
X
X
100
1.4
8.75
5.00
0.017
0.031
0.062
X
X
100
1.5
10.00
5.00
0.012
0.018
0.036
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
www.littelfuse.com
©2006 Littelfuse
41
Electronics Designers Guide
VL Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
25°C
Part Number
40°C
50°C
60°C
70°C
Hold Current (A)
12VL170
3.5
2.9
2.4
1.70
1.2
1.0
0.7
0.3
12VL175L
3.5
2.9
2.4
1.75
1.3
1.0
0.8
0.3
12VL175XL
3.5
2.9
2.4
1.75
1.3
1.0
0.8
0.3
12VL230
5.0
4.2
3.4
2.30
1.7
1.3
0.9
0.4
Average Time Current Curves
Temperature Rerating Curve
220%
190%
170%
Percentage of Rated Current
150%
130%
110%
90%
70%
50%
30%
10%
-40 -30 -20
A: 12VL230
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
C: VLD170F
B: 12VL175L, 12VL175XL
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
VL Series
Specifications are subject to change without notice.
42
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Physical Specifications
Environmental Specifications
0.13mm nominal thickness, quarter-hard
nickel
Terminal Material
Operating/Storage
Temperature
-40°C to +85°C
Passive Aging
+60°C, 1000 hours
±20% typical resistance change
-40°C, 1000 hours
±5% typical resistance change
Humidity Aging
+60°C, 95%R.H. 1000 hours
±30% typical resistance change
Thermal Shock
MIL-STD-202G, Method 107G
+85°C to -40°C 10 times ±5% typical resistance change
Vibration
MIL-STD-883C, Method 2026
No change
Insulating Material Polyester tape
Dimensions
Figure 1
Figure 2
A
A
Marking
B
E
D1
Marking
B
E
D1
D2
D2
C
C
Part
Number
A
Inches
B
mm
Inches
C
mm
D1
Inches
mm
Double Sided Marking
Inches
D2
mm
Inches
E
mm
Inches
Fig.
mm
Top Side Max. Min. Max Min Max Min Max Min Max Min Max. Min. Max.
Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min.
12VL170
0.82
0.91 20.80 23.20
0.14
0.15
3.50
3.90
--
0.03
12VL175L
1.15
1.25 29.30 31.70
0.11
0.13
2.90
3.30
--
0.03
12VL175XL
1.00
1.11 25.50 28.20
0.14
0.15
3.50
3.90
--
0.03
--
0.80
12VL230
0.82
0.91 20.90 23.10
0.19
0.21
4.90
5.30
--
0.03
--
0.80
Littelfuse
Trademark
--
Product Series
0.80
0.18
0.26
4.50
6.50
0.18
0.26
0.01
0.26
2.40
2.60
1
230
-- 0.80
0.20
0.27
5.20
6.80
0.39
0.49 10.00 12.50 0.02
0.49
2.40
2.60
2
0.34 Current
0.41Rating8.70 10.30 0.22
0.29
5.70
7.30
0.01
0.29
2.40
2.60
1
0.16
0.23
4.10
5.80
0.01
0.23
3.90
4.10
2
VL
0.23
4.10
5.80
0.16
4.50
6.50
Bottom Side
Product Series
VL
230
XXAK
Current Rating
Littelfuse
Trademark
www.littelfuse.com
©2006 Littelfuse
Lot Number
(Contact Littelfuse
for additional
information)
43
Electronics Designers Guide
VL Series
Specifications are subject to change without notice.
A
A
Marking
B
E
D1
B
Marking ® Resettable PTCs
POLYFUSE
E
Axial Leaded Strap
D1
D2
D2
C
C
Part Marking System
Part Numbering System
12 VL 175 XL U
Double Sided Marking
Top Side
QUANTITY CODE: U = 500 (bulk)
Product Series
VL
LEAD OPTIONS: Blank = standard
L = long lead
XL = extended long lead
230
Littelfuse
Trademark
Current Rating
HOLD CURRENT (VALUE DIVIDED BY 100 = HOLD CURRENT IN AMPS)
SERIES
Bottom Side
VOLTAGE RATING (VDC)
Product Series
VL
230
XXAK
Littelfuse
Trademark
Current Rating
Lot Number
(Contact Littelfuse
for additional
information)
Packaging
I hold
(A)
All Ratings
Packaging
Option
Quantity
Quantity &
Packaging Codes
Bulk
500
U
VL Series
Specifications are subject to change without notice.
44
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Axial Leaded Strap
VT Series
Description
The new VT series device provides reliable, noncycling
protection against overcharging and short circuits events
for rechargeable battery cells where resettable protection
is desired.
Features
Agency Approvals
AGENCY
• Compact design saves
board space
• Low resistance
• RoHS compliant and lead-free
• Weldable nickel terminals
• Slim, low profile design
AGENCY FILE NUMBER
Applications
E183209
• Rechargeable battery cell
protection
- Mobile phones
- Laptop computers
R50082521
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
16VT170
1.70
3.40
16
100
16VT170XS
1.70
3.40
16
16VT175
1.75
3.80
16
16VT175S
1.75
3.80
16VT175L
1.75
16VT175XL
16VT175EL
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1.4
8.50
3.00
0.030
0.052
0.105
X
X
100
1.4
8.50
3.00
0.030
0.052
0.105
X
X
100
1.4
9.00
3.00
0.025
0.045
0.090
X
X
16
100
1.4
9.00
3.00
0.025
0.045
0.090
X
X
3.80
16
100
1.4
9.00
3.00
0.025
0.045
0.090
X
X
1.75
3.80
16
100
1.4
8.75
5.00
0.029
0.051
0.102
X
X
1.75
3.60
16
100
1.4
8.75
5.00
0.029
0.051
0.102
X
X
16VT175NEL
1.75
3.60
16
100
1.4
8.75
5.00
0.029
0.051
0.102
X
X
16VT200
2.00
4.50
16
100
1.5
10.00
4.00
0.021
0.039
0.080
X
X
16VT200S
2.00
4.50
16
100
1.5
10.00
4.00
0.021
0.039
0.080
X
X
16VT200UL
2.00
4.70
16
100
1.5
10.00
5.00
0.022
0.039
0.076
X
X
16VT210
2.10
4.70
16
100
1.5
10.00
5.00
0.018
0.030
0.060
X
X
16VT210S
2.10
4.70
16
100
1.5
10.00
5.00
0.018
0.030
0.060
X
X
16VT210SS
2.10
4.70
16
100
1.5
10.00
5.00
0.018
0.030
0.060
X
X
16VT210L
2.10
4.70
16
100
1.5
10.00
5.00
0.018
0.030
0.060
X
X
16VT210NL
2.10
4.70
16
100
1.5
10.00
5.00
0.018
0.035
0.065
X
X
16VT210UL
2.10
4.70
16
100
1.5
10.00
5.00
0.018
0.035
0.065
X
X
16VT240
2.40
5.40
16
100
1.5
12.00
4.00
0.015
0.026
0.052
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
V max = Maximum voltage device can withstand without damage at rated current (I max)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
P d = Power dissipated from device when in the tripped state at 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
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45
Electronics Designers Guide
VT Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
16VT170
3.20
2.70
2.20
1.70
1.30
1.00
0.80
0.50
0.10
16VT170XS
3.20
2.70
2.20
1.70
1.30
1.00
0.80
0.50
0.10
16VT175
3.20
2.70
2.20
1.75
1.30
1.00
0.80
0.50
0.10
16VT175S
3.20
2.70
2.20
1.75
1.30
1.00
0.80
0.50
0.10
16VT175L
3.20
2.70
2.20
1.75
1.30
1.00
0.80
0.50
0.10
16VT175XL
3.20
2.70
2.20
1.75
1.30
1.00
0.80
0.50
0.10
16VT175EL
3.20
2.70
2.20
1.75
1.30
1.00
0.80
0.50
0.10
16VT175NEL
3.20
2.70
2.20
1.75
1.30
1.00
0.80
0.50
0.10
16VT200
3.70
3.20
2.60
2.00
1.50
1.20
0.90
0.50
0.10
16VT200S
3.70
3.20
2.60
2.00
1.50
1.20
0.90
0.50
0.10
16VT200UL
3.70
3.20
2.60
2.00
1.50
1.20
0.90
0.50
0.10
16VT210
4.10
3.50
2.90
2.10
1.60
1.30
1.00
0.70
0.10
16VT210S
4.10
3.50
2.90
2.10
1.60
1.30
1.00
0.70
0.10
16VT210SS
4.10
3.50
2.90
2.10
1.60
1.30
1.00
0.70
0.10
16VT210L
4.10
3.50
2.90
2.10
1.60
1.30
1.00
0.70
0.10
16VT210NL
4.10
3.50
2.90
2.10
1.60
1.30
1.00
0.70
0.10
16VT210UL
4.10
3.50
2.90
2.10
1.60
1.30
1.00
0.70
0.10
16VT240
4.40
3.70
3.10
2.40
1.80
1.50
1.20
0.90
0.10
Average Time Current Curves
Temperature Rerating Curve
200%
170%
Percentage of Rated Current
150%
130%
110%
90%
70%
50%
30%
B
A
10%
-40 -30 -20
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
A: 16VT170XS
B: 16VT210S
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
VT Series
Specifications are subject to change without notice.
46
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Physical Specifications
Terminal Material
Environmental Specifications
0.13mm nominal thickness, quarter-hard
nickel
Insulating Material Polyester tape
www.littelfuse.com
©2006 Littelfuse
Operating/Storage
Temperature
-40°C to +85°C
Passive Aging
+70°C, 1000 hours
±10% typical resistance change
Humidity Aging
+85°C, 85%R.H. 70days
±5% typical resistance change
Thermal Shock
MIL-STD-202 Method 107G
+85°C/-40°C 20 times
-30% typical resistance change
Vibration
MIL-STD-883C, Method
2007.1, Condition A
No change
47
Electronics Designers Guide
VT Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Axial Leaded Strap
Dimensions
Figure 1Figure 1
SLIT
A
B
B
0.5 x 4.0 NOMINAL
0.5 x 4.0 NOMINAL
SLIT
(.02”x .15”)
(.02”x .15”)
A
A
Marking Marking
B
E
D2
D1
SLIT
A
Marking Marking
B
EB
E
D2
D1
D1
D2
D1
D2
C
C
Figure 5Figure 5
A
E
D2
D1
E
C
A
Marking Marking
B
E
C
Figure 4Figure 4
B
Marking Marking
B
D1
D2
C
D2
C
A
0.5 x 4.0 NOMINAL
0.5 x 4.0 NOMINAL
SLIT
(.02”x .15”)
(.02”x .15”)
A
A
E
D1
D1
Figure 3Figure 3
Figure 2Figure 2
B
E
Marking Marking
B
D1
D2
C
A
E
D2
D1
E
D2
C
C
C
Figure 6Figure 6
A
B
A
E
E
C
C
Marking Marking
B
D1
D2
D1
D2
Double Sided Marking
Double Sided Marking
Top Side
A
Part Number
Inches
B
mm
Inches
Top Side
Product SeriesProduct Series
C
mm
VT
D1
VT
Inches 210 mm210
Littelfuse
Min.
Max.Littelfuse
Min. Max.
Trademark
Trademark
Min. Max.
Inches
Min. Max. Min.
Max. Min. Max.
16VT170
0.61 0.69 15.40
17.50 0.28 0.29 7.00 7.40 0.02 0.03 0.50 0.80 0.16
16VT170XS
0.82 0.90 20.90
Product Series
Series
22.90 0.19 0.21 4.90 5.30 0.02 0.03 0.50 0.80 0.16
- Product
4.00
Bottom Side
VT
0.032100.50
XXEF
D2
mm
CurrentMax
RatingCurrent
Min.
Min
Rating
-
Max
4.00
Bottom Side
VT
Inches
Figure
mm
Min Max
Min
Max
Min
Max
Min
Max
-
0.16
-
4.00
-
0.15
0.16
3.90
4.10
1
-
0.16
-
4.00
-
0.15
0.16
3.90
4.10
2
Current RatingCurrent Rating
0.82 0.87 20.90
22.20 0.14 0.15 3.50 3.80 0.02
4.00
-
0.16
-
4.00
-
0.11
0.12
2.90
3.10
1
16VT175S
0.82 0.87 20.90
22.20 0.14 0.15 3.50
3.80 Littelfuse
0.02 0.03 0.50 0.70 Lot
0.16
4.00
Littelfuse
Number - Lot Number
-
0.16
-
4.00
-
0.11
0.12
2.90
3.10
2
16VT175L
1.02 1.10 26.00
additional
28.00 0.14 0.15 3.50 3.80 0.02 0.03 0.50 0.80 information)
0.24
- for
6.00
information)
-
0.24
-
6.00
-
0.11
0.12
2.90
3.10
1
16VT175XL
1.00 1.11 25.50
28.20 0.14 0.15 3.50 3.90 0.02 0.03 0.50 0.80 0.34 0.41
10.30 0.22 0.29
5.70
7.30
0.09
0.10
2.40
2.60
4
16VT175EL
1.53 1.62 38.80
41.20 0.14 0.15 3.50 3.90 0.02 0.03 0.60 0.80 0.74 0.80 18.70 20.30 0.34 0.41
8.70
10.30
0.09
0.10
2.40
2.60
6
16VT175NEL
1.53 1.62 38.80
41.20 0.11 0.13 2.90 3.30 0.02 0.03 0.60 0.80 0.79 0.87 20.00 22.00 0.20 0.27
5.20
6.80
0.09
0.10
2.40
2.60
6
16VT200
0.82 0.91 20.90
23.10 0.15 0.17 3.80 4.30 0.02 0.03 0.60 0.70 0.16
-
4.00
-
0.16
-
4.00
-
0.11
0.12
2.90
3.10
1
16VT200S
0.82 0.91 20.90
23.10 0.15 0.17 3.80 4.30 0.02 0.03 0.60 0.70 0.16
-
4.00
-
0.16
-
4.00
-
0.11
0.12
2.90
3.10
2
16VT200UL
1.42 1.54 36.00
39.00 0.16 0.17 4.10 4.30 0.02 0.03 0.50 0.80 0.15 0.21
3.90
5.30
0.78 0.85 19.70 21.50
16VT210
0.82 0.91 20.90
23.10 0.19 0.21 4.90 5.30 0.02 0.03 0.60 0.80 0.16
4.10
-
0.16
16VT210S
0.82 0.91 20.90
23.10 0.19 0.21 4.90 5.30 0.02 0.03 0.60 0.80 0.16 0.23
4.10
5.80
16VT210SS
0.82 0.91 20.90
23.10 0.19 0.21 4.90 5.30 0.02 0.03 0.60 0.80 0.16
-
4.10
16VT210L
0.94 1.02 24.00
26.00 0.19 0.21 4.90 5.30 0.02 0.03 0.60 0.80 0.20
-
16VT210NL
2.78 2.81 70.50
71.50 0.15 0.17 3.80 4.30 0.02 0.03 0.60 0.80 0.98
-
16VT210UL
2.78 2.81 70.50
71.50 0.19 0.21 4.90 5.30 0.02 0.03 0.60 0.80 1.12
-
16VT240
0.95 1.03 24.20
26.20 0.19 0.21 4.90 5.30 0.02 0.03 0.60 0.80 0.20
-
VT Series
Specifications are subject to change without notice.
XXEF
-
E
mm
16VT175
Trademark
210 0.16
0.70
Inches
(Contact Littelfuse
(Contact Littelfuse
for additional
Trademark
-
48
Electronics Designers Guide
8.70
0.11
0.12
2.90
3.10
4
4.10
-
0.15
0.16
3.90
4.10
1
0.16 0.23
4.10
5.80
0.15
0.16
3.90
4.10
2
-
0.16
-
4.10
-
0.15
0.16
3.90
4.10
3
5.00
-
0.20
-
5.00
-
0.15
0.16
3.90
4.10
1
25.00
-
0.98
-
25.00
-
0.11
0.12
2.90
3.10
5
28.50
-
1.12
-
28.50
-
0.15
0.16
3.90
4.10
5
5.00
-
0.20
-
5.00
-
0.15
0.16
3.90
4.10
1
-
www.littelfuse.com
©2006 Littelfuse
Figure 6
A
POLYFUSE® Resettable PTCs
E
Double Sided Marking
Axial Leaded Strap
Marking
Top Side
Product Series
D2
VT
C
210
Part Marking System
Littelfuse
Trademark
Double Sided Marking
Top Side
Current Rating
Bottom Side
Product Series
Product Series
VT
VT
210
XXEF
210
Littelfuse
Trademark
Current Rating
Littelfuse
Trademark
Current Rating
Lot Number
(Contact Littelfuse
for additional
information)
Bottom Side
Product Series
Part Numbering System
16 VT 175 NEL U
VT
210
XXEF
Current Rating
Littelfuse
QUANTITY CODE
Trademark
Lot Number
(Contact Littelfuse
for additional
information)
U: 500 (bulk)
LEAD OPTIONS: Blank = standard
EL = extra long lead
L = long lead
NEL = narrow extra long lead
NL = narrow long lead
S = slit lead
SS = both leads slit
UL = ultra long lead
XL = extended long lead
XS = extended long lead slit
HOLD CURRENT (VALUE DIVIDED BY 100 = HOLD CURRENT IN AMPS)
SERIES
Voltage Rating (VDC)
Packaging
I hold
(A)
All Ratings
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©2006 Littelfuse
Packaging
Option
Quantity
Quantity &
Packaging Codes
Bulk
500
U
49
Electronics Designers Guide
VT Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
250R Series
Description
• The 250R series is designed to protect against short
duration high voltage fault currents (power cross or
power induction surge) typically found in telecom
applications (250Vrms). The series can be used to help
telecom networking equipment meet the protection
requirements specified in ITU K.20 and K.21.
Features
• RoHS compliant and lead-free
• Fast time-to-trip
• Binned and sorted narrow
resistance ranges available
Agency Approvals
AGENCY
AGENCY FILE NUMBER
• 0.08 – 0.18 Hold current
range, 60VDC operating
voltage
• 250VAC interrupt rating
E183209
Applications
R50082521
• Customer Premises
Equipment (CPE)
• Central Office (CO)/
Telecom Centers
• LAN/WAN Equipment
• Access equipment
Electrical Characteristics
Vint / Vop
I max
(A)
Pd
max.
(W)
0.16
250/60
3
0.16
250/60
3
0.12
0.24
250/60
250R120-RA
0.12
0.24
250R120-RC
0.12
0.24
250R120-RF
0.12
250R120-R1
0.12
250R120-R2
Part Number
I hold
(A)
I trip
(A)
250R080T
0.08
250R080
0.08
250R120
Vmax
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1
0.35
3
15
22
33
X
X
1
0.35
3
14
22
33
X
X
3
1
1
1.5
4
8
16
X
X
250/60
3
1
1
1.0
7
9
16
X
X
250/60
3
1
1
0.85
5.4
7.5
14
X
X
0.24
250/60
3
1
1
0.7
6
10.5
16
X
X
0.24
250/60
3
1
1
0.8
6
9
16
X
X
0.12
0.24
250/60
3
1
1
0.7
8
10.5
16
X
X
250R120-R3
0.12
0.24
250/60
3
1
1
1
8
10
16
X
X
250R120T
0.12
0.24
250/60
3
1
1
1.2
7
12
16
X
X
250R145
0.145
0.29
250/60
3
1
1
2.5
3
6
14
X
X
250R145-RA
0.145
0.29
250/60
3
1
1
5
3
5.5
12
X
X
250R145-RB
0.145
0.29
250/60
3
1
1
2.5
4.5
6
14
X
X
250R145T
0.145
0.29
250/60
3
1
1
2.0
5.4
7.5
14
X
X
250R180
0.18
0.65
250/60
10
1.8
1
21
0.8
2.2
4
X
X
250R180T
0.18
0.65
250/60
10
1.8
1
20
1.4
3.9
4.5
X
X
*typical value
C: coated device
T: pre-tripped device
250R Series
Specifications are subject to change without notice.
50
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
250R080
0.12
0.11
0.09
0.08
0.06
0.05
0.05
0.04
0.03
250R080T
0.12
0.11
0.09
0.08
0.06
0.05
0.05
0.04
0.03
250R120
0.18
0.16
0.14
0.12
0.10
0.09
0.08
0.06
0.05
250R120T
0.18
0.16
0.14
0.12
0.10
0.09
0.08
0.06
0.05
250R145
0.26
0.20
0.17
0.145
0.12
0.11
0.09
0.08
0.06
250R145T
0.26
0.20
0.17
0.145
0.12
0.11
0.09
0.08
0.06
250R180
0.28
0.23
0.21
0.18
0.16
0.13
0.10
0.11
0.083
250R180T
0.28
0.23
0.21
0.18
0.16
0.13
0.10
0.11
0.083
250R Series
Temperature Rerating Curve
170%
0.180A
0.080A
0.120A
0.145A
Average Time Current Curves
150%
Percentage of Rated Current
100000
10000
TIME IN SECONDS
1000
130%
110%
90%
70%
50%
30%
100
10%
-40 -30 -20
10
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
1
0.100
0.010
0.001
0.02
0.100
1
10
100
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.18
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
www.littelfuse.com
©2006 Littelfuse
51
Electronics Designers Guide
250R Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
Agency Specification Selection Guide For Telecom and Networking Applications
Product
Lightning
Power Cross
250R120
250R145
ITU K.20/21/45 – 1.5kV 10/700μs
ITU K.20/21/45 – 4kV 10/700μs*
ITU K.20/21/45 – 1.5kV 10/700μs
ITU K.20/21/45 – 4kV 10/700μs*
Telcordia GR – 974 – 1.0kV 10/1000μs
ITU K.20/21/45 – 230Vac, 10Ω
ITU K.20/21/45 – 600Vac, 600Ω
ITU K.20/21/45 – 230Vac, 10Ω
ITU K.20/21/45 – 600Vac, 600Ω
Telcordia GR – 974- 283Vac, 10A
250R180
*Devices should be independently evaluated and tested for use in any specific application
Protection Application Guide
Region/Specification
Application
South America/Asia/Europe
ITU K.45
*Access network equipment
Remote terminal
Repeaters
WAN equipment
Cross –connect
South America/Asia/Europe
ITU K.21
Customer and IT equipment
Analog modems
ADSL, xDSL
Phone sets, PBX systems
Internet appliances
POS terminals
South America/Asia/Europe
ITU K.20
Central Office
POTS/ISDN linecards
T1/E1/J1 linecards
ADSL/VDSL splitters
CSU/DSU
North America
Telcordia GR-974
*Primary protection modules
MDF modules
Network interface
South America/Asia/Europe
ITU K.20
North America
Telcordia GR-1089
South America/Asia/Europe
ITU K.20 and K.21
Device Selection
250R180
250R180T
250R145
250R145T
250R120
250R120T
250R180
250R180T
250R145
250R145T
250R120
250R120T
250R180
250R180T
250R145
250R145T
250R120
250R120T
250R180
250R180T
250R145
250R145T
250R120
250R120T
*Intrabuilding communication systems
LAN, VOIP cards
Local loop handsets
250R180
250R180T
250R145
250R145T
250R120
250R120T
LAN Intrabuilding power cross
Protection
LAN equipment, IP phone
250R080
*Resistance binned parts are recommended
250R Series
Specifications are subject to change without notice.
52
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
Soldering Parameters - Wave Soldering
Peak Temp/ Duration Time
Wave Soldering
260°C < 5 Sec
> 220°C
2 Sec ~ 20 Sec
Preheat 140°C ~ 180°C
180 Sec ~ 210 Sec
0°C~35°C < 70%RH
Storage Condition
Soldering
260
Cooling
220
Temperature (°C)
Condition
• Recommended soldering methods: heat element oven or
N2 environment for lead-free.
• Devices are designed to be wave soldered to the bottom
side of the board.
190
160
0
Preheating
2 to 5
180 to 210
• Devices can be cleaned using standard industry methods
and solvents.
20-30
Time(s)
• This profile can be used for lead-free device
Note: If soldering temperatures exceed the recommended
profile, devices may not meet the performance
requirements.
Soldering Parameters - Solder Reflow
Peak Temp/ Duration Time
Reflow
260°C > 5 Sec
> 220°C
30 Sec ~ 60 Sec
Preheat 160°C ~ 190°C
60 Sec ~ 90 Sec
0°C~35°C, < 70%RH
Storage Condition
Soldering
260
Cooling
220
Temperature (°C)
Condition
• Recommended reflow methods: IR, vapor phase oven, hot
air oven, N2 environment for lead-free.
• Devices are not designed to be wave soldered to the
bottom side of the board.
190
160
0
Preheating
60 to 90
30 to 60
• Devices can be cleaned using standard industry methods
and solvents.
120
Time(s)
Note: If reflow temperatures exceed the recommended
profile, devices may not meet the performance
requirements.
Physical Specifications
Environmental Specifications
Lead Material
Tin-plated copper
Operating/Storage
Temperature
-40°C to +85°C
Soldering
Characteristics
Solderability per MIL-STD-202,
Method 208E
Maximum Device Surface
Temperature in Tripped State
125°C
Insulating Material
Cured, flame retardant epoxy polymer
meets UL94V-0 requirements.
Passive Aging
65°C/85°C, 1000 hours
Device Labeling
Marked with LF, voltage, current rating,
and date code.
Humidity Aging
+85°C, 85%R.H. 1000 hours
Thermal Shock
MIL-STD-202F Method 107G
+125°C to -55°C 10 times
Solvent Resistance
MIL-STD-202, Method 215F
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©2006 Littelfuse
53
Electronics Designers Guide
250R Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
Dimensions
Figure 2
Figure 1
C
A
A
Marking
Marking
B
F
E
A
A Max.
B
F
E
Figure 1
Figure
1
Inches
mm
B
D
D
Part Number
C
Figure 2
C
D
E
Inches Figure
mm 2 Inches
Inches
mm
Inches
mm
Max.
C
Max.
Max.
Max.
Max.A
Min.
Min.
Typ.
0.39
9.9
0.18
4.6
0.19
4.7
0.20
0.18
4.6
250
4.7
0.15
3.8
4.7
0.18
Marking 0.19
4.6
11
0.18
4.6
Physical Characteristics
mm
Lead (dia)
Material
Figure
0.65
Sn/Cu
1
0.026
0.65
Sn/Cu
1
0.026
0.65
Sn/Cu
2
5.1
0.026
0.65
Sn/Cu
2
0.20
5.1
0.026
0.65
Sn/Cu
2
Typ.
Inches
mm
5.1
0.026
0.20
5.1
0.20
5.1
4.7
0.20
0.19
4.7
C
250R080
0.23
5.8
250R080T
0.23
5.8
250R120
0.26
6.5
0.43
250R120-RA
0.26
6.5
0.43
250R120-RC
0.26
6.5
0.43
250R120-RF
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
2
250R120-R1
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
2
D
250R120-R2
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
2
250R120-R3
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
2
Marking
E
0.39
9.9
250
Littelfuse
Trademark
F
080
XXXX
11
B
11
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
D
0.19
Littelfuse
Trademark
0.19
120
XXXX
B
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
F
0.26
6.5
0.43
11
0.18
4.6 E
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
2
250R145
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
2
250R145-RA
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
2
250R145-RB
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
2
250R145T
0.26
6.5
0.43
11
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
2
250R180
0.37
9.5
0.47
12
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
1
250F180T
0.37
9.5
0.47
12
0.18
4.6
0.19
4.7
0.20
5.1
0.026
0.65
Sn/Cu
1
250R120T
Part Marking System
Littelfuse
Trademark
250
080
XXXX
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
250R Series
Specifications are subject to change without notice.
Littelfuse
Trademark
250
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
120
XXXX
54
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
Part Numbering System
250 R 120
- RA Z R
PACKAGING STYLE
BLANK: Bulk
R: Tape & Ammo
QUANTITY CODE: M=1000 U=500 Z=1200
SERIES
Rx: Resistance Range (x = A-Z or 1-9) [not applicable for all parts]
T: PRE-TRIPPED DEVICE (OPTIONAL)
I HOLD CURRENT CODE (SEE TABLE BELOW)
R: RADIAL
PEAK VOLTAGE RATING
Packaging
I hold
(A)
I hold
Code
0.080
080
0.120
120
0.145
145
0.180
180
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©2006 Littelfuse
Packaging
Option
Quantity
Quantity &
Packaging Codes
Bulk
500
U
Tape and Ammo
1500
DR
Bulk
500
U
Tape and Ammo
1200
ZR
Bulk
500
U
Tape and Ammo
1200
ZR
Bulk
200
F
Tape and Ammo
1000
MR
55
Electronics Designers Guide
250R Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
600R Series
Description
• The 600R series is designed to protect against power
fault events typically found in telecom applications. This series is designed to be used in applications that
need to meet the requirements of GR-1089-CORE and
UL60950/EN60950/IEC60950. These resettable devices
also help to meet the requirements of ITU K.20, K.21 and
K.44.
Features
• RoHS compliant and lead-free
• Fast time-to-trip
• Binned and sorted narrow
resistance ranges available
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
• 0.15 – 0.16A Hold current
range, 60VDC operating
voltage
• 600VAC interrupt rating
R50082521
Applications
Secondary overcurrent
protection for:
• Central Office Equipment (CO)
• Customer Premises
Equipment (CE)
• Alarm Systems
• Set Top Boxes (STB)
• Voice over IP (VOIP)
• Subscriber Line Interface
Circuit (SLIC)
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
600R150
0.15
0.30
600
3
600R150-RA
0.15
0.30
600
600R150-RB
0.15
0.30
600
600R160
0.16
0.32
600R160-RA
0.16
0.32
600R160-R1
0.16
0.32
Maximum Time
To Trip
Agency
Approvals
Resistance
Current
(A)
Time
(Sec.)
R min
(Ω)
R typ
(Ω)
R 1max
(Ω)
1.00
5.0
8.0
6
12
22
X
X
3
1.00
5.0
7.5
7
10
20
X
X
3
1.00
4.5
-
9
12
22
X
X
600
3
1.00
7.5
18
4
10
18
X
X
600
3
1.00
9.5
-
4
7
16
X
X
600
3
1.00
9.0
-
4
8
17
X
X
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
60°C
85°C
Hold Current (A)
600R150
0.26
0.23
0.19
0.15
0.124
0.062
0.03
600R160
0.27
0.24
0.20
0.16
0.13
0.07
0.05
600R Series
Specifications are subject to change without notice.
56
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
600R Series
Average Time Current Curves
Temperature Rerating Curve
0.150A
0.160A
170%
150%
Percentage of Rated Current
100000
10000
TIME IN SECONDS
1000
130%
110%
90%
70%
50%
30%
100
10%
-40 -30 -20
10
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
1
0.100
0.010
0.001
0.20
1
10
100
1000
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.15
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
Agency Specification Selection Guide For Telecom and Networking Applications
Part Number
Lightning
Power Cross
600R150
600R160
TIA-968-A – 1.5kV 10/160μs
800V 10/560μs
UL60950, 3rd Ed – 600Vac, 40A
Telcordia GR – 1089 – 600Vac, 60A
Telcordia GR –1089–1.0kV 10/1000μs 2.5kV 2/10μs
Devices should be independently evaluated and tested for use in any specific application
www.littelfuse.com
©2006 Littelfuse
57
Electronics Designers Guide
600R Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
Protection Application Guide
Region/Specification
Application
*Access network equipment
Remote terminal
Repeaters
WAN equipment
Cross -connect
Customer and IT equipment
Analog modems
ADSL, XDSL modems
Phone sets, PBX systems
Internet appliances
POS terminals
Central Office
POTS/ISDN linecards
T1/E1/J1 linecards
ADSL/VDSL splitters
CSU/DSU
North America
Telcordia GR-1089
North America
TIA-968-A, UL60950
North America
Telcordia GR-1089
North America
Telcordia GR-1089
South America/Asia/Europe
ITU K.20 and K.21
Device Selection
600R150
600R160
600R150
600R160
600R150
600R160
*Intrabuilding communication systems
LAN, VOIP cards
Local loop handsets
600R150
600R160
*Resistance binned parts are recommended
Soldering Parameters - Wave Soldering
Peak Temp/ Duration Time
Wave Soldering
260°C < 5 Sec
> 220°C
2 Sec ~ 20 Sec
Preheat 140°C~ 180°C
180 Sec ~ 210 Sec
0°C~35°C, < 70%RH
Storage Condition
Soldering
260
Cooling
220
Temperature (°C)
Condition
• Recommended soldering methods: heat element oven or
N2 environment for lead-free
• Devices are designed to be wave soldered to the bottom
side of the board.
190
160
0
• Devices can be cleaned using standard industry methods
and solvents.
Preheating
180 to 210
2 to 5
20-30
Time(s)
• This profile can be used for lead-free device
Note: If soldering temperatures exceed the recommended
profile, devices may not meet the performance
requirements.
600R Series
Specifications are subject to change without notice.
58
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
Soldering Parameters - Solder Reflow
Peak Temp/ Duration Time
Reflow
260°C > 5 Sec
> 220°C
30 Sec ~ 60 Sec
Preheat 160°C~ 190°C
60 Sec ~ 90 Sec
0°C~35°C, < 70%RH
Storage Condition
Soldering
260
Cooling
220
Temperature (°C)
Condition
• Recommended reflow methods: IR, vapor phase oven, hot
air oven, N2 environment for lead-free.
• Devices are not designed to be wave soldered to the
bottom side of the board.
190
160
0
Preheating
60 to 90
30 to 60
• Devices can be cleaned using standard industry methods
and solvents.
120
Time(s)
Note: If reflow temperatures exceed the recommended
profile, devices may not meet the performance
requirements.
Physical Specifications
Environmental Specifications
Lead Material
Tin-plated copper
Operating/Storage
Temperature
-40°C to +85°C
Soldering
Characteristics
Solderability per MIL-STD-202,
Method 208E
Maximum Device Surface
Temperature in Tripped State
125°C
Insulating Material
Cured, flame retardant epoxy polymer
meets UL94V-0 requirements.
Passive Aging
85°C/85°C, 1000 hours
Device Labeling
Marked with LF, voltage, current rating,
and date code.
Humidity Aging
+85°C, 85%R.H. 1000 hours
Thermal Shock
MIL-STD-202F Method 107G
+125°C to -55°C 10 times
Solvent Resistance
MIL-STD-202, Method 215F
www.littelfuse.com
©2006 Littelfuse
59
Electronics Designers Guide
600R Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
Dimensions
A
600
Littelfuse
Trademark
150
XXXX
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
C
Marking
B
D
F
E
Figure 1
A
Part Number
B
C
D
E
Physical Characteristics
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Max.
Max.
Max.
Max.
Max.
Max.
Min.
Min.
Typ.
Typ.
Inches
mm
600R150
0.53
13.5
0.50
12.6
0.24
6
0.19
4.7
0.20
5.1
0.026
600R150-RA
0.53
13.5
0.50
12.6
0.24
6
0.19
4.7
0.20
5.1
0.026
600R150-RB
0.53
13.5
0.50
12.6
0.24
6
0.19
4.7
0.20
5.1
600R160
0.63
16
0.50
12.6
0.24
6
0.19
4.7
0.20
5.1
600R160-RA
0.63
16
0.50
12.6
0.24
6
0.19
4.7
0.20
600R160-R1
0.63
16
0.50
12.6
0.24
6
0.19
4.7
0.20
Part Marking System
600
Littelfuse
Trademark
A
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
150
XXXX
Lead (dia)
Material
Figure
0.65
Sn/Cu
1
0.65
Sn/Cu
1
0.026
0.65
Sn/Cu
1
0.026
0.65
Sn/Cu
1
5.1
0.026
0.65
Sn/Cu
1
5.1
0.026
0.65
Sn/Cu
1
C
Marking
B
D
F
E
Part Numbering System
600 R 160
- RA F
PACKAGING STYLE
BLANK: Bulk
R: Tape & Ammo
QUANTITY CODE: F=200 U=500
SERIES
Rx: Resistance Range (x = A-Z or 1-9) [not applicable for all parts]
T: PRE-TRIPPED DEVICE (OPTIONAL)
I HOLD CURRENT CODE (SEE TABLE BELOW)
R: RADIAL
PEAK VOLTAGE RATING
Packaging
I hold
(A)
I hold
Code
0.15
150
0.16
160
Packaging
Option
Quantity
Quantity &
Packaging Codes
Bulk
200
F
Tape and Ammo
600
ZR
Bulk
200
F
Tape and Ammo
500
UR
600R Series
Specifications are subject to change without notice.
60
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
30R Series
Description
• The 30R series radial leaded device is designed to provide overcurrent protection for low voltage (≤30V)
applications where space is not a concern and resettable
protection is preferred.
Features
• RoHS compliant and lead-free
• Fast time-to-trip
• Cured, flame retardant
epoxy polymer insulating
material meets UL 94V-0
requirements
Agency Approvals
AGENCY
AGENCY FILE NUMBER
Applications
E183209
• USB hubs, ports and peripherals
• Computers & peripherals
R50082521
• Motor protection
• General electronics
• Automotive applications
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
30R090
0.90
1.80
30
40
30R110
1.10
2.20
30
30R135
1.35
2.70
30
30R160
1.60
3.20
30R185
1.85
3.70
30R250
2.50
30R300
3.00
30R400
30R500
Maximum Time
To Trip
Resistance
Agency
Approvals
Current
(A)
Time
(Sec.)
R min
(Ω)
R 1max
(Ω)
0.6
4.50
5.90
0.070
0.220
X
X
40
0.7
5.50
6.60
0.050
0.170
X
X
40
0.8
6.75
7.30
0.040
0.130
X
X
30
40
0.9
8.00
8.00
0.030
0.110
X
X
30
40
1.0
9.25
8.70
0.030
0.090
X
X
5.00
30
40
1.2
12.50
10.30
0.020
0.070
X
X
6.00
30
40
2.0
15.00
10.80
0.020
0.080
X
X
4.00
8.00
30
40
2.5
20.00
12.70
0.010
0.050
X
X
5.00
10.00
30
40
3.0
25.00
14.50
0.010
0.050
X
X
30R600
6.00
12.00
30
40
3.5
30.00
16.00
0.005
0.040
X
X
30R700
7.00
14.00
30
40
3.8
35.00
17.50
0.005
0.030
X
X
30R800
8.00
16.00
30
40
4.0
40.00
18.80
0.005
0.020
X
X
30R900
9.00
18.00
30
40
4.2
40.00
20.00
0.005
0.020
X
X
I hold = Hold current: maximum current device will pass without tripping in 23°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 23°C still air.
R 1max = Maximum resistance of device at 23°C measured one hour after tripping.
V max = Maximum voltage device can withstand without damage at rated current (Imax)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
Pd = Power dissipated from device when in the tripped state at 23°C still air.
www.littelfuse.com
©2006 Littelfuse
61
Electronics Designers Guide
30R Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
30R090
1.31
1.17
1.04
0.90
0.75
0.69
0.61
0.55
0.47
30R110
1.60
1.43
1.27
1.10
0.91
0.85
0.75
0.67
0.57
30R135
1.96
1.76
1.55
1.35
1.12
1.04
0.92
0.82
0.70
30R160
2.32
2.08
1.84
1.60
1.33
1.23
1.09
0.98
0.83
30R185
2.68
2.41
2.13
1.85
1.54
1.42
1.26
1.13
0.96
30R250
3.63
3.25
2.88
2.50
2.08
1.93
1.70
1.53
1.30
30R300
4.35
3.90
3.45
3.00
2.49
2.31
2.04
1.83
1.56
30R400
5.80
5.20
4.60
4.00
3.32
3.08
2.72
2.44
2.08
30R500
7.25
6.50
5.75
5.00
4.15
3.85
3.40
3.05
2.60
30R600
8.70
7.80
6.90
6.00
4.98
4.62
4.08
3.66
3.12
30R700
10.15
9.10
8.05
7.00
5.81
5.39
4.76
4.27
3.64
30R800
11.60
10.40
9.20
8.00
6.64
6.16
5.44
4.88
4.16
30R900
13.05
11.70
10.35
9.00
7.47
6.93
6.12
5.49
4.68
30R Series
Temperature Rerating Curve
170%
1.10A
1.35A
1.60A
1.85A
2.50A
3.00A
4.00A
5.00A
6.00A
7.00A
8.00A
9.00A
0.900A
Average Time Current Curves
150%
Percentage of Rated Current
100000
10000
TIME IN SECONDS
1000
100
130%
110%
90%
70%
50%
30%
10%
10
-40 -30 -20
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
1
0.100
0.010
0.001
0.20
1
10
100
1000
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.16
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
30R Series
Specifications are subject to change without notice.
62
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
Soldering Parameters - Wave Soldering
Refer to the condition
recommended by the
flux manufacturer.
Pre-Heating Zone
Soldering
260
Cooling
220
Soldering Zone
Max. solder temperature
should not exceed
260°C
Cooling Zone
Cooling by natural
convection in air.
Temperature (°C)
Max. ramping rate
should not exceed
4°C/Sec.
190
160
Preheating
0
60 min.
5 max.
Time(s)
Physical Specifications
Environmental Specifications
Lead Material
0.90-2.50A: Tin-plated copper clad steel
3.00-9.00A: Tin-plated copper
Soldering
Characteristics
Solderability per MIL-STD-202,
Method 208E
Cured, flame retardant epoxy polymer
Insulating Material
meets UL94V-0 requirements.
Device Labeling
www.littelfuse.com
©2006 Littelfuse
Operating/Storage
Temperature
-40°C to +85°C
Maximum Device Surface
Temperature in Tripped State
125°C
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Humidity Aging
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
Thermal Shock
+85°C to -40°C 10 times
±5% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215F
No change
Marked with LF, voltage, current rating,
and date code.
63
Electronics Designers Guide
30R Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
Dimensions
E
A
30
Littelfuse
Trademark
110U
XXXX
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
MARKING
B
D
C
Part Number
30R090
A
Inches mm
Max.
Max.
0.29
7.40
B
Inches mm
Max.
Max.
0.48
12.20
C
Inches mm
Typ.
Typ.
0.20
5.10
D
Inches mm
Min.
Min.
0.30
7.60
E
Inches mm
Max.
Max.
0.12
3.00
Physical Characteristics
Lead (dia)
Material
Inches mm
0.02
0.51
Sn/CuFe
30R110
0.29
7.40
0.56
14.20
0.20
5.10
0.30
7.60
0.12
3.00
0.02
0.51
Sn/CuFe
30R135
0.35
8.90
0.53
13.50
0.20
5.10
0.30
7.60
0.12
3.00
0.02
0.51
Sn/CuFe
30R160
0.35
8.90
0.60
15.20
0.20
5.10
0.30
7.60
0.12
3.00
0.02
0.51
Sn/CuFe
30R185
0.40
10.20
0.62
15.70
0.20
5.10
0.30
7.60
0.12
3.00
0.02
0.51
Sn/CuFe
30R250
0.45
11.40
0.72
18.30
0.20
5.10
0.30
7.60
0.12
3.00
0.02
0.51
Sn/CuFe
30R300
0.45
11.40
0.76
19.20
0.20
5.10
0.30
7.60
0.12
3.00
0.02
0.51
Sn/Cu
30R400
0.55
14.00
0.87
22.00
0.20
5.10
0.30
7.60
0.12
3.00
0.03
0.81
Sn/Cu
30R500
0.55
14.00
1.01
25.60
0.40
10.20
0.30
7.60
0.12
3.00
0.03
0.81
Sn/Cu
30R600
0.65
16.50
1.06
26.80
0.40
10.20
0.30
7.60
0.12
3.00
0.03
0.81
Sn/Cu
30R700
0.75
19.10
1.13
28.60
0.40
10.20
0.30
7.60
0.12
3.00
0.03
0.81
Sn/Cu
30R800
0.85
21.60
1.22
31.10
0.40
10.20
0.30
7.60
0.12
3.00
0.03
0.81
Sn/Cu
30R900
0.95
24.10
1.24
31.60
0.40
10.20
0.30
7.60
0.12
3.00
0.03
0.81
Sn/Cu
Part Marking System
Littelfuse
Trademark
30
110U
XXXX
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
E
A
MARKING
B
D
C
30R Series
Specifications are subject to change without notice.
64
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
Part Numbering System
30 R 250
U PR
PACKAGING STYLE
BLANK: Bulk
R: Tape & Ammo
SERIES
QUANTITY CODE: F=200 H=100 M=1000 P=2000 U=500
TYPE: U (30VDC)
I HOLD CURRENT CODE (SEE TABLE BELOW)
R: RADIAL
VOLTAGE RATING (VDC)
Packaging
I hold
(A)
I hold
Code
0.90
090
1.10
110
1.35
135
1.60
160
1.85
185
2.50
250
3.00
300
4.00
400
5.00
500
6.00
600
7.00
700
8.00
9.00
Quantity
Quantity &
Packaging Codes
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
200
F
Tape and Ammo
1000
MR
Bulk
200
F
Tape and Ammo
1000
MR
Bulk
200
F
Tape and Ammo
1000
MR
Bulk
200
F
Tape and Ammo
1000
MR
800
Bulk
100
H
900
Bulk
100
H
www.littelfuse.com
©2006 Littelfuse
Packaging
Option
65
Electronics Designers Guide
30R Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
60R Series
Description
• The 60R series radial leaded device is designed to
provide overcurrent protection for (≤60V) applications
where space is not a concern and resettable protection is preferred.
Features
• RoHS compliant and lead-free
• Fast time-to-trip
• Cured, flame retardant
epoxy polymer insulating
material meets UL 94V-0
requirements
Agency Approvals
AGENCY
AGENCY FILE NUMBER
Applications
E183209
• USB hubs, ports and peripherals
• IEEE1394 ports
• Computers & peripherals
• Motor protection
R50082521
• General electronics
• Automotive applications
• Industrial controls
• Transformers
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
60R010
0.10
0.20
60
40
60R020
0.20
0.40
60
40
60R025
0.25
0.50
60
60R030
0.30
0.60
60R040
0.40
0.80
60R050
0.50
60R065
0.65
60R075
Maximum Time
To Trip
Resistance
Agency
Approvals
Current
(A)
Time
(Sec.)
R min
(Ω)
R 1max
(Ω)
0.38
0.50
4.00
2.500
7.500
X
X
0.41
1.00
2.20
1.830
4.400
X
X
40
0.45
1.25
2.50
1.250
3.000
X
X
60
40
0.49
1.50
3.00
0.880
2.100
X
X
60
40
0.56
2.00
3.80
0.550
1.290
X
X
1.00
60
40
0.77
2.50
4.00
0.500
1.170
X
X
1.30
60
40
0.88
3.25
5.30
0.310
0.720
X
X
0.75
1.50
60
40
0.92
3.75
6.30
0.250
0.600
X
X
60R090
0.90
1.80
60
40
0.99
4.50
7.20
0.200
0.470
X
X
60R110
1.10
2.20
60
40
1.50
5.50
8.20
0.150
0.380
X
X
60R135
1.35
2.70
60
40
1.70
6.75
9.60
0.120
0.300
X
X
60R160
1.60
3.20
60
40
1.90
8.00
11.40
0.090
0.220
X
X
60R185
1.85
3.70
60
40
2.10
9.25
12.60
0.080
0.190
X
X
60R250
2.50
5.00
60
40
2.50
12.50
15.60
0.050
0.130
X
X
60R300
3.00
6.00
60
40
2.80
15.00
19.80
0.040
0.100
X
X
60R375
3.75
7.50
60
40
3.20
18.75
24.00
0.030
0.080
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
V max = Maximum voltage device can withstand without damage at rated current (I max)
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
Pd = Power dissipated from device when in the tripped state at 20°C still air.
60R Series
Specifications are subject to change without notice.
66
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
60R010
0.16
0.14
0.12
0.10
0.08
0.07
0.06
0.05
0.04
60R020
0.31
0.27
0.24
0.20
0.16
0.14
0.13
0.11
0.08
60R025
0.39
0.34
0.30
0.25
0.20
0.18
0.16
0.14
0.10
60R030
0.47
0.41
0.36
0.30
0.24
0.22
0.19
0.16
0.12
60R040
0.62
0.54
0.48
0.40
0.32
0.29
0.25
0.22
0.16
60R050
0.78
0.68
0.60
0.50
0.41
0.36
0.32
0.27
0.20
60R065
1.01
0.88
0.77
0.65
0.53
0.47
0.41
0.35
0.26
60R075
1.16
1.02
0.89
0.75
0.61
0.54
0.47
0.41
0.30
60R090
1.40
1.22
1.07
0.90
0.73
0.65
0.57
0.49
0.36
60R110
1.71
1.50
1.31
1.10
0.89
0.79
0.69
0.59
0.44
60R135
2.09
1.84
1.61
1.35
1.09
0.97
0.85
0.73
0.54
60R160
2.48
2.18
1.90
1.60
1.30
1.15
1.01
0.86
0.64
60R185
2.87
2.52
2.20
1.85
1.50
1.33
1.17
1.00
0.74
60R250
3.88
3.40
2.98
2.50
2.03
1.80
1.58
1.35
1.00
60R300
4.65
4.08
3.57
3.00
2.43
2.16
1.89
1.62
1.20
60R375
5.81
5.10
4.46
3.75
3.04
2.70
2.36
2.03
1.50
60R Series
Temperature Rerating Curve
2.50A
3.00A
3.75A
1.10A
1.35A
1.60A
1.85A
0.650A
0.750A
0.900A
0.250A
0.300A
0.400A
0.500A
0.200A
Average Time Current Curves
170%
100000
Percentage of Rated Current
150%
10000
TIME IN SECONDS
1000
100
130%
110%
90%
70%
50%
30%
10
10%
-40 -30 -20
1
-10
0
10
20 30
40
Temperature (°C)
50
60
70
80
0.100
0.010
0.001
0.20
1
10
100
1000
CURRENT IN AMPERES
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
www.littelfuse.com
©2006 Littelfuse
AKL V3.9 06.05.16
67
Electronics Designers Guide
60R Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
Soldering Parameters - Wave Soldering
Refer to the condition
recommended by the
flux manufacturer.
Pre-Heating Zone
Soldering
260
Cooling
220
Soldering Zone
Max. solder temperature
should not exceed
260°C
Cooling Zone
Cooling by natural
convection in air.
Temperature (°C)
Max. ramping rate
should not exceed
4°C/Sec.
190
160
Preheating
0
60 min.
5 max.
Time(s)
Physical Specifications
Environmental Specifications
Lead Material
.20-.40A: Tin-plated copper clad steel
.50-3.75A: Tin-plated copper
Operating/Storage
Temperature
-40°C to +85°C
Soldering
Characteristics
Solderability per MIL-STD-202, Method 208E
Maximum Device Surface
Temperature in Tripped State
125°C
Insulating Material
Cured, flame retardant epoxy polymer
meets UL94V-0 requirements.
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Device Labeling
Marked with LF, voltage, current rating,
and date code.
Humidity Aging
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
Thermal Shock
+85°C to -40°C 10 times
±5% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215F
60R Series
Specifications are subject to change without notice.
68
Electronics Designers Guide
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©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
DimensionsDouble Sided Marking
0.20A to 0.40A
Littelfuse
Trademark
E
A
Top Side
age Rating
ent Rating
Voltage Rating
Current Rating
60
025X
MARKING
Code
tact Littelfuse
dditional
mation)
B
D
Bottom Side
Littelfuse
Trademark
A
Part Number
C
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
60
XXXX
B
C
D
E
Physical Characteristics
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Inches
mm
Max.
Max.
Max.
Max.
Typ.
Typ.
Min.
Min.
Max.
Max.
Inches
mm
60R010
0.29
7.4
0.50
12.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R020
0.29
7.4
0.46
11.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R025
0.29
7.4
0.50
12.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R030
0.29
7.4
0.50
12.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R040
0.30
7.6
0.53
13.5
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/CuFe
60R050
0.31
7.9
0.54
13.7
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/Cu
60R065
0.37
9.4
0.57
14.5
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/Cu
60R075
0.40
10.2
0.59
15
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/Cu
60R090
0.44
11.2
0.62
15.8
0.20
5.1
0.30
7.6
0.12
3.1
0.02
0.51
Sn/Cu
60R110
0.51
13
0.72
18.2
0.20
5.1
0.30
7.6
0.12
3.1
0.03
0.81
Sn/Cu
60R135
0.53
13.58
0.78
19.8
0.20
5.1
0.30
7.6
0.12
3.1
0.03
0.81
Sn/Cu
60R160
0.60
15.36
0.85
21.6
0.30
7.6
0.12
3.1
0.40A
0.030.20A to0.81
Sn/Cu
60R185
0.66
16.76
0.91
23
0.30
7.6
0.12
3.1
0.03
Sn/Cu
60R250
0.78
19.93
1.03
Littelfuse26.2
Voltage Rating
0.30
7.6
0.12
3.1
Littelfuse
Trademark
0.03
3.1
0.03
3.1
0.03
Trademark
Single Sided Marking
0.50A to 3.75A5.1
0.20
0.20
5.1
0.4060
10.2
050X
XXXX
Current Rating
60R300
0.91
23.11
1.15
29.3
0.40
10.2
0.30
Date Code 7.6
0.12
60R375
1.04
26.3
1.22
31.1
0.40
10.2
0.30
for additional7.6
0.12
(Contact Littelfuse
Lead (dia)
Material
Double Sided Marking
0.81
Top Side
0.81
Voltage Rating
Sn/Cu
60
Current Rating
025X
0.81
Sn/Cu
0.81
Sn/Cu
information)
Part Marking System
Double Sided
Double
Marking
Sided Marking
0.20A to 0.40A
0.20A to 0.40A
Single Sided
Single
Marking
Sided Marking
0.50A to 3.75A
0.50A to 3.75A
A
Top Side Top Side
LittelfuseLittelfuse
Trademark
Trademark
60
050X
XXXX
60
050X
XXXX
Voltage Rating
Voltage Rating
Current Rating
Current Rating
LittelfuseLittelfuse
Trademark
Trademark
60
60
025X
025X
Bottom Side
Voltage Rating
Voltage Rating
Littelfuse
Current Rating
Current Rating
Trademark
Date Code
Date Code
(Contact (Contact
LittelfuseLittelfuse
for additional
for additional
information)
information)
E
A
60
XXXX
MARKINGMARKING
B
D
Bottom Side
Bottom Side
LittelfuseLittelfuse
Trademark
Trademark
www.littelfuse.com
©2006 Littelfuse
60
60
XXXX
XXXX
69
Electronics Designers Guide
Voltage Rating
Voltage Rating
Date Code
Date Code
(Contact (Contact
LittelfuseLittelfuse
for additional
for additional
information)
information)
C
E
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
B
D
C
60R Series
Specifications are subject to change without notice.
MA
POLYFUSE® Resettable PTCs
Radial Leaded
Part Numbering System
60 R 250
X MR
PACKAGING STYLE
BLANK: Bulk
R: Tape & Ammo
SERIES
QUANTITY CODE: F=200 H=100 M=1000 P=2000 U=500
TYPE: X (60VDC)
I HOLD CURRENT CODE (SEE TABLE BELOW)
R: RADIAL
VOLTAGE RATING (VDC)
Packaging
I hold
(A)
I hold Code
0.10
010
0.20
020
0.30
030
0.40
040
0.50
050
0.65
065
0.75
075
0.90
090
1.10
110
1.35
135
1.60
160
1.85
185
Packaging
Option
Quantity
Quantity &
Packaging Codes
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
1000
MR
Bulk
200
F
Tape and Ammo
1000
MR
Bulk
200
F
Tape and Ammo
1000
MR
Bulk
200
F
Tape and Ammo
1000
MR
Bulk
200
F
2.50
250
Tape and Ammo
1000
MR
3.00
300
Bulk
200
F
3.75
375
Bulk
100
H
60R Series
Specifications are subject to change without notice.
70
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
USBR Series
Description
• The USBR series radial leaded device is designed to
provide overcurrent protection for USB applications
where space is not a concern.
Features
Agency Approvals
AGENCY
• 40A short circuit rating
• Operating voltages of
6-16V
• RoHS compliant and lead-free
• Fast time-to-trip
• Meets all USB protection
requirements
AGENCY FILE NUMBER
Applications
E183209
• Computers & peripherals
• Any USB application
R50082521
Electrical Characteristics
Part Number
I hold
(A)
I trip
(A)
V max
(Vdc)
I max
(A)
Pd
max.
(W)
06R075B
0.75
1.30
6
40
06R120B
1.20
2.00
6
06R155B
1.55
2.70
6
16R090B
0.90
1.80
16R110B
1.10
2.20
16R135B
1.35
16R160B
16R185B
16R250B
Maximum Time
To Trip
Resistance
Agency
Approvals
Current
(A)
Time
(Sec.)
R min
(Ω)
R 1max
(Ω)
0.3
8.00
0.4
0.100
0.230
X
X
40
0.6
8.00
0.5
0.065
0.140
X
X
40
0.6
7.75
2.2
0.040
0.100
X
X
16
40
0.6
8.00
1.2
0.070
0.180
X
X
16
40
0.7
8.00
2.3
0.050
0.140
X
X
2.70
16
40
0.8
8.00
4.5
0.040
0.120
X
X
1.60
3.20
16
40
0.9
8.00
9.0
0.030
0.110
X
X
1.85
3.70
16
40
1.0
8.00
10.0
0.030
0.090
X
X
2.50
5.00
16
40
1.2
8.00
40.0
0.020
0.060
X
X
I hold = Hold current: maximum current device will pass without tripping in 20°C still air.
R min = Minimum resistance of device in initial (un-soldered) state.
I trip = Trip current: minimum current at which the device will trip in 20°C still air.
R typ = Typical resistance of device in initial (un-soldered) state.
V max = Maximum voltage device can withstand without damage at rated current (I max)
R 1max = Maximum resistance of device at 20°C measured one hour after tripping or reflow
soldering of 260°C for 20 sec.
I max = Maximum fault current device can withstand without damage at rated voltage (Vmax)
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
Pd = Power dissipated from device when in the tripped state at 20°C still air.
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©2006 Littelfuse
71
Electronics Designers Guide
USBR Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
Part Number
40°C
50°C
60°C
70°C
85°C
Hold Current (A)
06R075B
1.05
0.95
0.85
0.75
0.65
0.60
0.55
0.50
0.43
06R120B
1.69
1.52
1.36
1.20
1.04
0.96
0.88
0.80
0.68
06R155B
2.17
1.96
1.75
1.55
1.34
1.24
1.13
1.03
0.88
16R090B
1.31
1.17
1.04
0.90
0.75
0.69
0.61
0.55
0.47
16R110B
1.60
1.43
1.27
1.10
1.00
0.92
0.75
0.67
0.57
16R135B
1.96
1.76
1.55
1.35
1.12
1.04
0.92
0.82
0.70
16R160B
2.32
2.08
1.84
1.60
1.33
1.23
1.09
0.98
0.83
16R185B
2.68
2.41
2.13
1.85
1.54
1.42
1.26
1.13
0.96
16R250B
3.63
3.25
2.88
2.50
2.08
1.93
1.70
1.53
1.30
30R Series
Temperature Rerating Curve
Temperature Rerating Curve:
170%
1.10A
1.35A
1.60A
1.85A
2.50A
3.00A
4.00A
5.00A
6.00A
7.00A
8.00A
9.00A
0.900A
Average Time Current Curves
150% B
Percentage of Rated Current
100000
10000
TIME IN SECONDS
1000
100
130% A
110%
90%
70%
A
50%
B
30%
10%
-40 -30 -20
10
-10
0
A: 06R075B, 06R120B,
06R155B
1
10
20 30
40
Temperature (°C)
50
60
70
80 85
B: 16R090B, 16R110B,
16R135B, 16R160B,
16R185B, 16R250B,
0.100
0.010
0.001
0.20
1
10
100
1000
CURRENT IN AMPERES
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.16
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.
USBR Series
Specifications are subject to change without notice.
72
Electronics Designers Guide
www.littelfuse.com
©2006 Littelfuse
POLYFUSE® Resettable PTCs
Radial Leaded
Soldering Parameters - Wave Soldering
Refer to the condition
recommended by the
flux manufacturer.
Pre-Heating Zone
Soldering
260
Cooling
220
Soldering Zone
Max. solder temperature
should not exceed
260°C
Cooling Zone
Cooling by natural
convection in air.
Temperature (°C)
Max. ramping rate
should not exceed
4°C/Sec.
190
160
Preheating
0
60 min.
5 max.
Time(s)
Physical Specifications
Environmental Specifications
Lead Material
.90-2.50A: Tin-plated copper clad steel
.75A: Tin-plated copper
Operating/Storage
Temperature
-40°C to +85°C
Soldering
Characteristics
Solderability per MIL-STD-202,
Method 208E
Maximum Device Surface
Temperature in Tripped State
125°C
Insulating Material
Cured, flame retardant epoxy polymer
meets UL94V-0 requirements.
Passive Aging
+85°C, 1000 hours
±5% typical resistance change
Device Labeling
Marked with LF, voltage, current rating,
and date code.
Humidity Aging
+85°C, 85%R.H. 1000 hours
±5% typical resistance change
Thermal Shock
+85°C to -40°C 10 times
±5% typical resistance change
Solvent Resistance
MIL-STD-202, Method 215F
www.littelfuse.com
©2006 Littelfuse
73
Electronics Designers Guide
USBR Series
Specifications are subject to change without notice.
POLYFUSE® Resettable PTCs
Radial Leaded
Figure 2
Figure 1
A
Dimensions (mm)
E
A
Figure 1
Figure
1 2
Figure
Figure 1 Figure 2
A
AA
A
E
MARKING
A
Figure 2
E A
E
MARKING
MARKING
MARKING
Figure 1
D
DD
D
D
Figure 2
CC
Inches
C
B mm
Max.
Typ.
0.4506
11.4
B
0.20
06
06R120B
0.27
6.9
0.46
06R155B
0.27
6.9
0.46
16R090B
0.29
7.4
0.48
16R110B
2
FigureFigure
2 0.29
7.4
0.56
14.2
0.53
13.5
075B
Inches
Max.
6.9
B
Littelfuse
Trademark
Littelfuse
Voltage Rating
Trademark
Current Rating
075B
D
8.9 C
Littelfuse
16
Trademark Voltage Rating135B
Littelfuse
Current RatingXXXX
Trademark
11.7
D
C
E
C
Figure 2
D
MARKING
Single Sided Marking
Double Sided Marking
1.35A
to 2.50A
Double
Sided Marking
0.75A to 1.55A MARKING
0.75A to 1.55A
Top Side
Top Side
Max.
Max.
Top Side
Typ.
1.35A to 2.50A
Min.
16
Littelfuse
5.1
0.30
Littelfuse
Voltage Rating
Trademark
Current Rating
Voltage Rating
Date Code
Current Rating
(Contact Littelfuse
for additional
information)
075B
135B
Trademark
XXXX
5.1
0.30
Double Sided Marking
11.7
5.1
0.75A0.20
to 1.55A
12.2
Littelfuse
Trademark
0.20
E
Top0.20
Side
Min.
7.6
Voltage Rating
Littelfuse
16
Current Rating
Trademark
110U
Date Code
(Contact Littelfuse
for additional
information)
0.12
Littelfuse
Voltage Rating
16
Trademark
Current Rating
135B
XXXX
Littelfuse
Trademark
7.6
0.12
0.12
7.6
0.12
0.20
06
5.1
16R250B
0.20
5.1
18.3
1
0.12
7.6
0.72
Sn/Cu
Voltage Rating
Current Rating
7.6
Bottom Side
11.4
0.51
16
110U
0.30
0.30
0.45
0.020
0.12
0.30
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
XXXX
3
Figure
7.6
5.1
Voltage Rating
Littelfuse
Date Code
Trademark
(Contact Littelfuse
for additional
information)
16
Voltage Rating
110U
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Material
D 0.30
5.1
XXXX
Inches Top Side
mm
Voltage Rating
Littelfuse
Current Rating
Trademark
Sn/CuFe
Double Sided1
Marking
0.20
XXXX
0.90A to 1.10A
Max.
Top Side
0.51
Current Rating
Bottom Side
0.90A to 1.10A
0.12
3
0.020
Single Sided Marking
5.1
Voltage Rating 0.30
075B
Max.
Top Side
Lead
(dia)
Double Sided Marking
7.6
5.1
0.20
06D
0.90A to 1.10A 1.35A to 2.50A
16R160B A A 0.35
8.9 E E0.60
15.2
Bottom Side
Bottom Side
C
C 06 10.2 0.6206 15.7
16R185B
0.40
Littelfuse
Voltage Rating
Trademark
Date Code
(Contact Littelfuse
for additional
information)
Physical Characteristics
mmSingleBSided
Inches
mm
Inches mm
Marking
Double Sided
Marking
Single Sided Marking Double Sided Marking
0.20 C
0.35
D
E
B
mm
D
D
C
A
MARKING
A
B
MARKING
B
C
C
A
Figure 2
Double Sided Marking
0.75A to 1.55A
Littelfuse
Trademark
MARKING
ARKING
B
Figure 1
Inches
MARKING
16R135B
AA
B
0.2706
06R075B
1
igureFigure
1
BB
C
A
Part
Number
B
A
Figure 1
B
MARKING
MARKING
MARKING
0.30
7.6
16
Littelfuse
Trademark
XXXX
0.30
7.6
1.35A to 2.50A
16
135B
XXXX
3
0.020
0.51
Sn/CuFe
3
0.020
0.51
Sn/CuFe
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
0.12
0.12
2
16
0.020
0.51
3
0.020
0.51
Sn/CuFe
2
3
0.020 Bottom0.51
Side
Sn/CuFe
2
Sn/CuFe
2
Sn/CuFe
2
16
3
XXXX
3
Voltage Rating
Littelfuse
Date Code
Trademark
(Contact Littelfuse
for additional
information)
0.020
0.020
0.51
16
XXXX
0.51
Sn/CuFe
1
Top Side
3
Bottom Side
Littelfuse
Voltage Rating
Trademark
Date Code
(Contact Littelfuse
for additional
information)
Littelfuse
Trademark
0.90A to 1.10A
110U
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
2
Voltage Rating
Current Rating
MARKING
MARKING
BB
B B
Part Marking System
Top Side
Double Sided Marking
D D0.75A to 1.55A
Littelfuse
Trademark
Top Side
CC
Littelfuse
Trademark
geVoltage
Rating RatingLittelfuse
entCurrent
Rating RatingTrademark
ageVoltage
Rating Rating
Date Code
e Code
(Contact
Littelfuse
ntact
Littelfuse
for additional
additional
information)
rmation)
06
06
075B
D D
Voltage Rating
Current Rating
Voltage Rating
Current Rating
Littelfuse
Trademark
C C
075B
Bottom
Side
Sided
Marking
SingleSingle
Sided
Marking
to 2.50A
1.35A1.35A
to 2.50A
Littelfuse
Trademark
Bottom Side
Littelfuse
Littelfuse
Trademark
Trademark
06
XXXX
Double Sided Marking
0.90A to 1.10A
Single Sided Marking
1.35A to 2.50A
Double Sided Marking
0.75A to 1.55A
Bottom Side
Single Sided Marking
Littelfuse
1.35A
to
2.50A
Trademark
06
Littelfuse
Trademark
XXXX
16
135B
XXXX
16
Voltage Rating
135B
XXXX
Voltage RatingCurrent Rating
Date Code Date Code
(Contact Littelfuse
(Contact Littelfuse
for additional for additional
information) information)
Littelfuse
Voltage Rating
Current Rating
Date Code
(Contact Littelfuse
for additional
information)
Trademark
Top Side
16
110U
16
110U
Voltage Rating
Current Rating
Littelfuse
Trademark
16
XXXX
Voltage Rating
Current Rating
Bottom Side
Double
Marking
Double
SidedSided
Marking
to 1.10A
0.90A0.90A
to 1.10A
06
Voltage Rating
Date Code
(Contact Littelfuse
for additional
VoltageVoltage
Rating Rating
information)
16 16
CurrentCurrent
Rating Rating
135B 135B
Voltage
XXXXRating Date Code
XXXX
Date Code
Date Code
(Contact
Littelfuse
(Contact
Littelfuse
(Contact Littelfusefor additional
for additional
for additional
information)
information)
information)
Bottom Side
Top Side
Double Sided Marking
0.90ALittelfuse
to 1.10A
Trademark
Littelfuse
Trademark
Top Side
Top Side
XXXX
Littelfuse
Littelfuse
Trademark
Trademark
16
16
110U 110U
16
XXXX
Bottom Side
VoltageVoltage
Rating RatingLittelfuse
CurrentCurrent
Rating RatingTrademark
16
XXXX
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
Bottom
Bottom
Side Side
USBR Series
Specifications are subject to change without notice.
Littelfuse
Littelfuse
Trademark
Trademark
16
16
XXXX XXXX
VoltageVoltage
Rating Rating
Date Code
Date Code
74
(Contact
Littelfuse
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Littelfuse
for additional
for additional
information)
information)
Electronics
Designers
www.littelfuse.com
Guide
©2006 Littelfuse
Voltage Rating
Date Code
(Contact Littelfuse
for additional
information)
POLYFUSE® Resettable PTCs
Radial Leaded
Part Numbering System
16 R 090
B PR
PACKAGING STYLE
BLANK: Bulk
R: Tape & Ammo
SERIES
QUANTITY CODE: P=2000 U=500
TYPE: B=USB
I HOLD CURRENT CODE (SEE TABLE BELOW)
R: RADIAL
VOLTAGE RATING (VDC)
Packaging
I hold
(A)
I hold
Code
Voltage
0.75
075
6
1.20
120
6
1.55
155
6
0.90
080
16
1.10
110
16
1.35
135
16
1.60
160
16
1.85
185
16
2.50
250
16
www.littelfuse.com
©2006 Littelfuse
Packaging
Option
Quantity
Quantity &
Packaging Codes
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
Bulk
500
U
Tape and Ammo
2000
PR
75
Electronics Designers Guide
USBR Series
Specifications are subject to change without notice.