Radial Lead Resettable Polymer PTCs
SC30 Series
Description
SC30 series radial leaded PTCs are designed to provide
over-current protection for low voltage (≤30V) applications
where space is not a concern and resettable protection is
preferred.
Features
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Cured,
flame
retardant epoxy polymer meets UL 94V-0
requirements
30V operating voltage
Fast time-to-trip
RoHS compliant, Lead-Free and Halogen-Free
Applicable
Computers and peripherals
Power ports
Motor protection
Automotive application
USB hubs ,ports and peripherals
General electronics
Electrical Parameters
Maximum Time
To Trip
Current
(A)
Time
(Sec.)
R
min
(mΩ)
360
270
160
135
110
85
65
55
45
35
30
20
15
12
10
8.5
7.0
Resistance
R
max
(mΩ)
800
600
360
300
220
170
130
110
90
70
60
40
30
24
20
17
14
R
1max
(mΩ)
1200
900
540
450
330
230
165
140
115
90
80
50
40
30
25
22
18
Part Number
I
hold
(A)
I
trip
(A)
V
max
(Vdc)
I
max
(A)
P
dtyp.
(W)
SC30-040
0.40
0.8
30
40
0.45
2.00
3.10
SC30-050
0.50
1.0
30
40
0.50
2.50
3.80
SC30-065
0.65
1.3
30
40
0.50
3.25
4.50
SC30-075
0.75
1.5
30
40
0.55
3.75
5.20
SC30-090
0.90
1.8
30
40
0.60
4.50
5.90
SC30-110
1.10
2.2
30
40
0.70
5.50
6.60
SC30-135
1.35
2.7
30
40
0.80
6.75
7.30
SC30-160
1.60
3.2
30
40
0.90
8.00
8.00
SC30-185
1.85
3.7
30
40
1.00
9.25
8.70
SC30-250
2.5
5.0
30
40
1.20
12.5
10.3
SC30-300
3.0
6.0
30
100
2.0
15.0
10.8
SC30-400
4.0
8.0
30
100
2.5
20.0
12.7
SC30-500
5.0
10.0
30
100
3.0
25.0
14.5
SC30-600
6.0
12.0
30
100
3.5
30.0
16.0
SC30-700
7.0
14.0
30
100
3.8
35.0
17.5
SC30-800
8.0
16.0
30
100
4.0
40.0
18.8
SC30-900
9.0
18.0
30
100
4.2
45.0
20.0
I
hold
= Hold current: maximum current device will pass without tripping in 25°C still air.
I
trip
= Trip current: minimum current at which the device will trip in 25°C still air.
V
max
= Maximum voltage device can withstand without damage at rated current (I
max
)
I
max
= Maximum fault current device can withstand without damage at rated voltage (V
max
)
P
dtyp.
= Power dissipated from device when in the tripped state at 25°C still air.
R
min
= Minimum resistance of device in initial (un-soldered) state.
R
max
= Maximum resistance of device in initial (un-soldered) state.
R
1max
= Maximum resistance of device at 25°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
1/4
@ SOCAY Electronics Co., Ltd. 2013
Specifications are subject to change without notice.
Please refer to www.socay.com for current information.
Radial Lead Resettable Polymer PTCs
SC30 Series
Temperature Rerating Chart
–
I
hold
(A)
Ambient Operation Temperature
Part Number
-40°C
-20°C
0°C
25°C
40°C
Hold Current (A)
SC30-040
SC30-050
SC30-065
SC30-075
SC30-090
SC30-110
SC30-135
SC30-160
SC30-185
SC30-250
SC30-300
SC30-400
SC30-500
SC30-600
SC30-700
SC30-800
SC30-900
0.58
0.73
0.94
1.09
1.31
1.60
1.96
2.32
2.68
3.63
4.35
5.80
7.25
8.70
10.15
11.60
13.05
0.52
0.65
0.85
0.98
1.17
1.43
1.76
2.08
2.41
3.25
3.90
5.20
6.50
7.80
9.10
10.40
11.70
0.46
0.58
0.75
0.86
1.04
1.27
1.55
1.84
2.13
2.88
3.45
4.60
5.75
6.90
8.05
9.20
10.35
0.40
0.50
0.65
0.75
0.90
1.10
1.35
1.60
1.85
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
0.33
0.42
0.54
0.62
0.75
0.91
1.12
1.33
1.54
2.08
2.49
3.32
4.15
4.98
5.81
6.64
7.47
0.31
0.39
0.50
0.58
0.69
0.85
1.04
1.23
1.42
1.93
2.31
3.08
3.85
4.62
5.39
6.16
6.93
0.27
0.34
0.44
0.51
0.61
0.75
0.92
1.09
1.26
1.70
2.04
2.72
3.40
4.08
4.76
5.44
6.12
0.24
0.31
0.40
0.46
0.55
0.67
0.82
0.98
1.13
1.53
1.83
2.44
3.05
3.66
4.27
4.88
5.49
0.21
0.26
0.34
0.39
0.47
0.57
0.70
0.83
0.96
1.30
1.56
2.08
2.60
3.12
3.64
4.16
4.68
50°C
60°C
70°C
85°C
Average Time Current Curves
Temperature Rerating Curve
1000
100
10
1
0.1
0.01
0.001
1
10
100
Percentage of Rated Current
Time in Seconds
Temperature (°C)
Current in Amperes
A=SC30-090
B=SC30-110
C=SC30-135
D=SC30-160
E=SC30-185
F=SC30-250
G=SC30-300
H=SC30-400
I=SC30-500
J=SC30-600
K=SC30-700
L=SC30-800
M=SC30-900
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.
Radial Lead Resettable Polymer PTCs
SC30 Series
Test Procedures and Requirement
Test
Resistance
Hold Current
Time to Trip
Trip Cycle Life
Trip Endurance
Test Conditions
In still air @25±2°C
60 min, at I
hold
, In still air @25±2°C
Specified current, V
max
, @25±2°C
V
max
, I
max
,100 cycles
Vmax,24hours
Accept/Reject Criteria
R
min
≤R≤R
max
No trip
T≤Maximum Time To Trip
No arcing or burning
No arcing or burning
Soldering Parameters
Refer to the condition recommended
by the manufacturer. Max. ramping
rate should not exceed 4°C/Sec
Max. solder temperature should not
exceed 260°C
Cooling by natural convection in air
Pre-Heating Zone
Soldering Zone
Cooling Zone
Physical Specifications
Lead Material
Soldering
Characteristics
Insulating Material
Device Labeling
0.4-1.85A Tin-plated Copper clad steel
2.5-9.0A Tin-plated Copper
Solder ability per MIL-STD-202, Method 208E
Cured,
flame
retardant epoxy polymer meets UL 94V-0
requirements.
Marked with
‘SC’,
voltage, current rating
Part Numbering
Part Marking
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.
Radial Lead Resettable Polymer PTCs
SC30 Series
Dimensions
Figure1
A
Part
Number
SC30-040
SC30-050
SC30-065
SC30-075
SC30-090
SC30-110
SC30-135
SC30-160
SC30-185
SC30-250
SC30-300
SC30-400
SC30-500
SC30-600
SC30-700
SC30-800
SC30-900
Figure
Inches
Max.
Figure1
Figure1
Figure1
Figure1
Figure2
Figure2
Figure2
Figure2
Figure2
Figure2
Figure3
Figure3
Figure3
Figure3
Figure3
Figure3
Figure3
0.236
0.236
0.276
0.283
0.276
0.256
0.346
0.346
0.394
0.445
0.445
0.531
0.570
0.630
0.728
0.827
0.965
mm
Max.
6.0
6.0
7.0
7.2
7.0
6.5
8.8
8.8
10.0
11.3
11.3
13.5
14.5
16.0
18.5
21.0
24.5
Inches
Max.
0.445
0.472
0.472
0.480
0.472
0.571
0.543
0.610
0.630
0.728
0.669
0.700
0.925
0.925
0.965
1.102
1.102
B
mm
Max.
11.3
12.0
12.0
12.2
12.0
14.5
13.8
15.5
16.0
18.5
17.0
17.8
23.5
23.5
24.5
28.0
28.0
Figure2
C
Inches
Typ.
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.400
0.400
0.400
0.400
0.400
mm
Typ.
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
10.2
10.2
10.2
10.2
10.2
Inches
Max.
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
0.118
D
mm
Max.
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
Figure3
Lead (dia)
Packaging
Inches
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.020
0.031
0.031
0.031
0.031
0.031
0.031
0.031
Mm
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.8
0.8
0.8
0.8
0.8
0.8
0.8
(Bulk Pack)
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
500
500
500
200
200
200
Warning
u
This product should not be used in an application where the maximum interrupt voltage or maximum interrupt current in a fault
condition, Operation beyond the maximum rating or improper use may result in device damage and possible electrical arcing
and flame.
u
A PPTC device is not a fuse, It is a nonlinear thermistor that limits current, Because under a fault condition all PPTC devices
go into a high resistance state but not open circuit hazardous voltage may be present at PPTC.
u
The devices are intended for protection against occasional over-current or over-temperature fault conditions and should not
be used when repeated fault conditions or prolonged trip events.
u
In most application, power must be removed and the fault condition cleared in order to reset a PPTC device.
u
PPTC devices are not recommended to be installed in applications where the device is constrained such that its PPTC
properties are inhibited, for example in rigid potting materials or Add devices surface coating, Bundled devices ontology,
which lack adequate clearance to accommodate device expansion.
u
Contamination on of the PPTC material with certain silicone-based oils or some aggressive solvents can adversely impact the
performance of the devices. For example, Organic solvents to cleaning.
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.
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