Datasheet

POLY-FUSE® Resettable PTCs
Surface Mount > 250S Series
250S Series
RoHS
Description
he 250S High Voltage Radial device is a Polymer-based
T
PTC suitable to protect telephony equipment against
lightining and power cross strikes. The 250S Series is
fully compatible with telecommunications standards, and
is offered in horizontal and new vertical surface mount
package.
Features
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E183209
Applications
R50120008
• LAN/WAN equipment
• Access equipment
•C
ustomer Premises
Equipment (CPE)
•C
entral Office (CO)/
telecom centers
Additional Information
Datasheet
• Helps meets ITU K.20,
K.21/Telcordia standards
• Excellent solder joint
inspectability
• High voltage
• RoHS Compliant,
Directive 2002/95/EC
• Lead-Free & Halogen-Free
• Low resistance
• Compatible with telecom
standards
Samples
Resources
Electrical Characteristics
Part Number
Device
Mounting
Layout
250S130
250S130–RA
250S130–RB
Horizontal
250S130–RC
250S130V
Vertical
I hold
(A)
I trip
(A)
V max
(Vint /Vop)
I max
(A)
Pd typ.
(W)
0.13
0.26
250/60
3
1.2
0.13
0.26
250/60
3
0.13
0.26
250/60
3
Time to Trip at 1A
Agency
Approvals
Resistance
Typical
(Sec.)
Maximum
(Sec.)
0.9
4.0
R min
(Ω)
4
1.2
1.4
4.0
6.5
1.2
0.7
4.0
9
R max
(Ω)
13
R 1max
(Ω)
20
–
10
15
–
13
20
–
0.13
0.26
250/60
3
1.2
1.1
4.0
7
11
17
–
0.13
0.26
250/60
3
1.2
2.0
4.0
4
13
20
–
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 max = Maximum resistance of device in initial (un-soldered) state.
Vint = Maximum voltage the device can withstand without damage at rated current (I max)
R 1max = Maximum resistance of device at 20°C measured one hour after tripping.
Vop= The device regular operation voltage
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.
WARNING
• Users shall independently assess the suitability of these devices for each of their
applications
• Exposure to silicon-based oils, solvents, electrolytes, acids, and similar materials can
adversely affect the performance of these PPTC devices
• Operation of these devices beyond the stated maximum ratings could result in damage to
the devices and lead to electrical arcing and/or fire
• These devices undergo thermal expansion under fault conditions, and thus shall be
provided with adequate space and be protected against mechanical stresses
• These devices are intended to protect against the effects of temporary over-current or overtemperature conditions and are not intended to perform as protective devices where such
conditions are expected to be repetitive or prolonged in duration
• Circuits with inductance may generate a voltage (L di/dt) above the rated voltage of the
PPTC device.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/05/15
POLY-FUSE® Resettable PTCs
Surface Mount > 250S Series
Temperature Rerating
Ambient Operation Temperature
-40°C
-20°C
0°C
20°C
Part Number
250S130
0.21
0.19
0.17
50°C
60°C
70°C
85°C
0.13
0.11
0.10
0.09
0.07
0.05
Temperature Rerating Curve
0.13A
Average Time Current Curves
200.00
250S
1000
Percentage of rated current %
160.00
100
Time in Seconds
40°C
Hold Current (A)
120.00
80.00
40.00
10
0.00
-40.00
0.00
40.00
80.00
120.00
Device Ambient Temperature ºC
1
0.10
0.1
Agency Specification Selection Guide For Telecom
and Networking Applications
Product
1
10
Current in Amperes
100
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.
250S130
250S130V
250S130-RA
250S130-RB
250S130-RC
Lightning
ITU K.20/21/45 –
1.5kV 10/700μs
Power Cross
ITU K.20/21/45 –
230Vac, 10Ω
Protection Application Guide
Region/
Specification
South America/
Asia/Europe
ITU K.45
South America/
Asia/Europe
ITU K.21
South America/
Asia/Europe
ITU K.20
Application
Access network equipment
Remote terminal
Repeaters
WAN equipment
Cross –connect
Customer and IT equipment
Analog modems
ADSL, xDSL
Phone sets, PBX systems
Internet appliances
POS terminals
Central Office
POTS/ISDN linecards
T1/E1/J1 linecards
ADSL/VDSL splitters
CSU/DSU
Device
Selection
250S130
250S130V
250S130-RA
250S130-RB
250S130-RC
250S130
250S130V
250S130-RA
250S130-RB
250S130-RC
250S130
250S130V
250S130-RA
250S130-RB
250S130-RC
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/05/15
POLY-FUSE® Resettable PTCs
Surface Mount > 250S Series
Soldering Parameters
Pb-Free Assembly
Average Ramp-Up Rate (TS(max) to TP)
3°C/second max
Pre Heat:
Temperature Min (Ts(min))
150°C
Temperature Max (Ts(max))
200°C
Time (Min to Max) (ts)
60 – 180 secs
Time Maintained Temperature (TL)
Above:
Temperature (tL)
217°C
Peak / Classification Temperature (TP)
260+0/-5 °C
Time within 5°C of actual peak
Temperature (tp)
20 – 40 seconds
Ramp-down Rate
6°C/second max
Time 25°C to peak Temperature (TP)
8 minutes Max.
60 – 150 seconds
Physical Specifications
tP
TP
Critical Zone
tL to tP
Ramp-up
TL
TS(max)
Temperature
Profile Feature
tL
Ramp-do
Ramp-down
Preheat
TS(min)
25
tS
time to peak temperature
Time
-- All temperature refer to topside of the package, measured on the package body surface
-- If reflow temperature exceeds the recommended profile, devices may not meet the
performance requirements
-- Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment
for lead
-- Recommended maximum paste thickness is 0.25mm(0.010inch)
-- Devices can be cleaned usingstandard industry methods and solvents
-- Devices can be reworked using the standard industry practices
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
Humidity Aging
+85°C, 85%,R.H.,1000 hours
Thermal Shock
MIL–STD–202, Method 107
+125°C to -55°C 10 times
Solvent Resistance
MIL–STD–202, Method 215
Moisture Sensitivity Level
Level 1, J–STD–020
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/05/15
POLY-FUSE® Resettable PTCs
Surface Mount > 250S Series
Dimensions
C
H
B
F
D
A
B
A
Part
Number
B
Inch
mm
Inch
Max.
Max.
Max.
E
C
C
D
AMax.
Inch
Dmm
Max.
Max.
mm
H
G
Inch
E
F
E
mm
Inch
mm
Max.
Max.
Max.
Max.
G
Soldering Pad Layout
F
Material
G
Inch
G
mm
Max. GMax.
Soldering
Sn/Ni/Cu Pad Layout
0.18 4.6
H
Inch
mm
Inch
mm
Max.
Max.
Max.
Max.
250S130
0.37
9.4
0.15
3.7
0.29
7.4
0.016
0.4
0.15
3.8
0.07
1.8
0.24
6.1
250S130–RA
0.37
9.4
0.15
3.7
A
0.29
7.4
0.016
C
0.4
0.15
3.8
Sn/Ni/Cu
0.18
4.6
0.07
1.8
0.24
6.1
250S130–RB
0.37
9.4
0.15
3.7
0.29
7.4
0.016
0.4
0.15
3.8
Sn/Ni/CuI
0.18
4.6
0.07
1.8
0.24
6.1
250S130–RC
0.37
9.4
0.15
3.7
0.29
7.4
0.016
0.4
0.15
3.8
GSn/Ni/Cu
0.18
4.6
0.07
1.8
0.24
6.1
B
A
D
Part
Number
A
Inch
Inch
B
H
Inch
D
mm
Inch
E
mm
Inch
F
mm
Inch
mm
.24
6.1
.27
6.9
.13
3.2
.04
1.6
H
G
H
I
J
Material Inch mm Inch mm Inch mm Inch mm
Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max. Max.
250S130V
J
G
Soldering Pad Layout
E
C
mm
H
Soldering Pad Layout
G
E
F
B
mm
I
F
D
H
C
J
G
.07
1.9
.09
2.3
Max. Max. Max. Max. Max. Max. Max. Max.
Sn/Ni/Cu .09
2.3
.09
2.4
.25
6.4
.14 3.43
Part Ordering Number System
250 S 130 -RA D R
PACKAGING STYLE
R: Tape & Reel
QUANTITY CODE: D=1500 Z=1200
OPTION CODE
(BLANK) = Horizontal / 4-13Ω resistance range
V = Vertical / 4-13Ω resistance range
-RA = Horizontal / 6.5-10Ω resistance range
-RB = Horizontal / 9-13Ω resistance range
-RC = Horizontal / 7-11Ω resistance range
I HOLD CURRENT CODE
(Refer to Electrical Characteristics Table)
SURFACE MOUNT
PEAK VOLTAGE RATING
Packaging
Part Number
Ordering Number
I hold
(A)
I hold Code
Packaging
Option
Quantity
Quantity & Packaging
Code
250S130
250S130DR
0.13
130
Tape and Reel
1500
DR
250S130V
250S130VZR
0.13
130
Tape and Reel
1200
ZR
250S130–RA
250S130–RADR
0.13
130
Tape and Reel
1500
DR
250S130–RB
250S130–RBDR
0.13
130
Tape and Reel
1500
DR
250S130–RC
250S130–RCDR
0.13
130
Tape and Reel
1500
DR
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/05/15
POLY-FUSE® Resettable PTCs
Surface Mount > 250S Series
Tape and Reel Specifications
TAPE SPECIFICATIONS:
EIA-481-1 (mm)
REEL DIMENSIONS:
EIA-481-1 (mm)
W
16 +/- 0.30
H
22.4 +/- 0.05
F
7.5 +/- 0.05
W
16.4 .0 +0/+2
E1
1.75 +/- 0.10
D
Ø60+0.5
D0
1.5 +/- 0.05
F
Ø13.0+/- 0.2
D1
1.00(MIN)
C
Ø340+/- 1.0
P0
4.00 +/- 0.10
H1
11+/- 0.5
P1
12.00 +/- 0.10
W1
2.2+/- 0.5
P2
2.00 +/- 0.05
W2
3.0+0.5
A0
6.9 +/- 0.10
W3
4.0+0.5
B0
9.6 +/- 0.10
W4
5.5+0.5
Tmax
0.4 +/- 0.10
K0
3.4 +/- 0.15
Leader Min.
300
Trailer Min.
300
Tape and Reel Diagram
H
P1
P2
D0
P0
E1
W4
W3
D
F
W
T
W2
W
F
D2
W1
A0
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/05/15
K0
B0
H1
C