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Surface Mount Resettable PTCs
SCF2920 Series
Description
The SCF2920 Series PTC provides surface mount
over-current protection for applications where space is at a
premium and resettable protection is desired.
Features
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RoHS compliant, Lead-Free and Halogen-Free
Fast time-to-trip
Compact design saves board space
Low resistance
Low-profile
Applicable
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PC motherboard - plug and play protection
Mobile phones - battery and port protection
Game console port protection
USB peripherals
Disk drive
PDAS / digital cameras
Power ports
General electronics
Electrical Parameters
Part Number
SCF030-2920-R
SCF050-2920-R
SCF075-2920-R
SCF075-60-2920-R
SCF100-2920-R
SCF125-2920-R
SCF150-2920-R
SCF185-2920-R
SCF200-2920-R
SCF200-24-2920-R
SCF250-2920-R
SCF260-2920-R
SCF300-2920-R
SCF300-15-2920R
Hold
Current
Trip
Current
I hold (A)
I trip
0.30
0.50
0.75
0.75
1.10
1.25
1.50
1.85
2.00
2.00
2.50
2.60
3.00
3.00
(A)
0.60
1.00
1.50
1.50
2.20
2.50
3.00
3.70
4.00
4.00
5.00
5.20
5.20
5.20
Rated
Voltage
Max
Current
Typical
Power
Maximum Time
To Trip
V max
(Vdc)
I max
(A)
P dtyp.
(W)
Current
(A)
Time
(Sec.)
R min
(Ω)
R 1max
(Ω)
60
60
33
60
33
33
33
33
16
24
16
6
6
15
100
100
100
10
100
100
40
40
100
40
100
100
100
40
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
2.5
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
3.0
4.0
0.3
0.3
0.5
2.0
2.0
2.5
4.5
5.0
16.0
20.0
25.0
25.0
1.000
0.300
0.180
0.180
0.090
0.050
0.050
0.040
0.035
0.035
0.025
0.020
0.010
0.010
4.800
1.400
1.000
1.000
0.410
0.250
0.230
0.150
0.120
0.120
0.085
0.075
0.048
0.048
Resistance
I hold= Hold current: maximum current device will pass without tripping in 23°C still air.
I trip= Trip current: minimum current at which the device will trip in 23°C still air.
V max= Maximum voltage device can withstand without damage at rated current (Imax)
I max= Maximum fault current device can withstand without damage at rated voltage (Vmax)
Pdtyp.= Power dissipated from device when in the tripped state at 23°C still air.
R min= Minimum resistance of device in initial (un-soldered) state.
R 1max= Maximum resistance of device at 23°C measured one hour after tripping.
Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
SOCAY Electronics Co., Ltd.
Revision September 12, 2013
www.socay.com
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@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Resettable PTCs
SCF2920 Series
Temperature Rerating Chart – I hold (A)
15.20
5Average Time Current Curves
Temperature Rerating Curve
A
B
Ambient Temperature (°C)
Fault Current (A)
A= SCF030-2920-R
B= SCF050-2920-R
C= SCF075-2920-R/
SCF075-60-2920-R
D= SCF100-2920-R
E= SCF125-2920-R
F= SCF150-2920-R
G= SCF185-2920-R
H= SCF200-2920-R/
SCF200-24-2920-R
I= SCF250-2920-R
J= SCF260-2920-R
K= SCF300-2920-R/
SCF300-15-2920R
A=SCF125-2920-R ~ SCF300-2920-R
A=SCF030-2920-R ~ SCF100-2920-R
Material Specifications
Terminal pad material
Pure Tin
Soldering Characteristics
Meets EIA specification RS 186-9E, ANSI/J-std-002 Category 3
Soldering Parameters
TP
Ramp-up
Critical Zone
TL to TP
Temperature
Pb-Free Assembly
Average Ramp-Up Rate (TS max to TP)
3°C/second max.
Preheat :
Temperature Min (TSmin)
Temperature Max (TSmax)
Time (TSmin to TSmax)
Time maintained above:
Temperature(TL)
Time (tL)
TL
TS(max)
Ramp-down
TS(min)
Preheat
25
Time to peak temperature
(t 25℃ to peak)
Profile Feature
Time
150°C
200°C
60-180 seconds
217°C
60-150 seconds
Peak/Classification Temperature(TP):
260°C
Time within 5°C of actual peak:
Temperature
20-40 seconds
Ramp-down Rate:
6°C/ second max.
Time 25°C to Peak Temperature
8 minutes max.
Note: All temperatures refer to of the package, measured on the package body surface.
Solder reflow
Caution:
Due to “Lead Free” nature, Temperature and Dwelling time for the
soldering zone is higher than those for Regular. This may cause
damage to other components.
1. Recommended max past thickness > 0.25mm.
2. Devices can be cleaned using standard methods and aqueous
solvent.
3. Rework use standard industry practices.
4. Storage Environment : < 30℃/ 60%RH
1. If reflow temperatures exceed the recommended profile, devices
may not meet the performance requirements.
2. Devices are not designed to be wave soldered to the bottom side
of the board.
SOCAY Electronics Co., Ltd.
Revision September 12, 2013
www.socay.com
2/4
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Resettable PTCs
SCF2920 Series
Part Marking
Part Numbering
F XXXL
SCF XXX – XX – 2920 –R
F200L
Part Identification
Logo
Device Size Code
Voltage Rating
F
Current Rating
F XXX
XX
075
60
Part Identification
Logo
Socay Product Code
Example
Pad Layouts
Unit: mm
The dimension in the table below provide the recommended
pad layout for each SCF2920 device
2920 Series
Dimensions
A
B
C
Nominal
Nominal
Nominal
5.10
2.30
5.60
Device
Unit: mm
A
Part Number
B
C
D
E
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
SCF030-2920-R
6.73
7.98
4.80
5.44
0.60
1.15
0.50
1.20
0.50
0.90
SCF050-2920-R
6.73
7.98
4.80
5.44
0.60
1.15
0.50
1.20
0.50
0.90
SCF075-2920-R
6.73
7.98
4.80
5.44
0.40
1.15
0.50
1.20
0.50
0.90
SCF075-60-2920-R
6.73
7.98
4.80
5.44
0.60
1.15
0.50
1.20
0.50
0.90
SCF100-2920-R
6.73
7.98
4.80
5.44
0.40
1.00
0.50
1.20
0.50
0.90
SCF125-2920-R
6.73
7.98
4.80
5.44
0.40
0.90
0.50
1.20
0.50
0.90
SCF150-2920-R
6.73
7.98
4.80
5.44
0.40
0.90
0.50
1.20
0.50
0.90
SCF185-2920-R
6.73
7.98
4.80
5.44
0.30
0.90
0.50
1.20
0.50
0.90
SCF200-2920-R
6.73
7.98
4.80
5.44
0.30
0.90
0.50
1.20
0.50
0.90
SCF200-24-2920-R
6.73
7.98
4.80
5.44
0.20
0.80
0.50
1.20
0.50
0.90
SCF250-2920-R
6.73
7.98
4.80
5.44
0.30
0.90
0.50
1.20
0.50
0.90
SCF260-2920-R
6.73
7.98
4.80
5.44
0.30
0.90
0.50
1.20
0.50
0.90
SCF300-2920-R
6.73
7.98
4.80
5.44
0.40
0.90
0.50
1.20
0.50
0.90
SCF300-15-2920R
6.73
7.98
4.80
5.44
0.65
1.15
0.50
1.20
0.50
0.90
SOCAY Electronics Co., Ltd.
Revision September 12, 2013
www.socay.com
3/4
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Surface Mount Resettable PTCs
SCF2920 Series
Packaging
Part Number
Packaging Option
Quantity
SCF030-2920-R
Tape & Reel -16mm/7″tape
2000
SCF050-2920-R
Tape & Reel -16mm/7″tape
2000
SCF075-2920-R
Tape & Reel -16mm/7″tape
2000
SCF075-60-2920-R
Tape & Reel -16mm/7″tape
2000
SCF100-2920-R
Tape & Reel -16mm/7″tape
2000
SCF125-2920-R
Tape & Reel -16mm/7″tape
2000
SCF150-2920-R
Tape & Reel -16mm/7″tape
2000
SCF185-2920-R
Tape & Reel -16mm/7″tape
2000
SCF200-2920-R
Tape & Reel -16mm/7″tape
2000
SCF200-24-2920-R
Tape & Reel -16mm/7″tape
2000
SCF250-2920-R
Tape & Reel -16mm/7″tape
2000
SCF260-2920-R
Tape & Reel -16mm/7″tape
2000
SCF300-2920-R
Tape & Reel -16mm/7″tape
2000
SCF300-15-2920R
Tape & Reel -16mm/7″tape
2000
Tape and Reel Specifications
7.0
(177.8)
0.157
(4.0)
Packag
0.059 Diameter
(1.5)
0.630
(16.0)
0.524
(13.3)
0.512(13.0)
Arbor Hole Diameter
0.315
(8.0)
Cover tape
0.646
(16.4)
Direction of Feed
Dimensions are in inches
(and millimeters)
Warning
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Operation beyond the specified maximum ratings or improper use may result in damage and possible electrical arcing and/or
flame.
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PPTC device are intended for occasional over-current protection. Application for repeated over-current condition and/or
prolonged trip are not anticipated.
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Avoid contact of PPTC device with chemical solvent. Prolonged contact will damage the device performance.
SOCAY Electronics Co., Ltd.
Revision September 12, 2013
www.socay.com
4/4
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.