NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
1
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Features
1. RoHS & Halogen Free (HF) compliant
2. Body size: Ф5mm ~ Ф 30mm
3. Radial lead resin coated
4. High power rating
5. Wide resistance range
6. Cost effective
7. Operating temperature range：
Φ5mm：-40~+150℃
Φ8~Φ10mm：-40~+170℃
Φ13mm~Φ30mm：-40~+200℃
8. Agency recognition: UL /cUL/TUV /CSA/CQC
Recommended Applications
1. Switch mode power supply
2. Electric motor
3. Transformer
4. Adapter
5. Projector
6. Halogen lamp
7. LED driver circuit
Part Number Code
Ф 5mm~ Ф 15mm
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Ф 20mm~ Ф 30mm
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Optional Suffix
Y
RoHS & HF
Compliant
Product Type
SCK
THINKING
NTC Thermistor
SCK Series
Body Size
05
Ф 5mm
08
Ф 8mm
10
Ф 10mm
13
Ф 13mm
15
Ф 15mm
Zero Power
Resistance
at 25℃ (
R
25
)
0R5
0.5Ω
2R5
2.5Ω
08
8Ω
20
20Ω
120
120Ω
Max Steady
State
Current
at 25
℃
X3
0.3A
2X
2.5A
8
8A
10
10A
Tolerance
of R
25
L
±15%
M
±20%
N
±25%
Appearance
S
Straight lead
F
Y kink lead
T
L kink lead
Optional Suffix
Y
RoHS & HF Compliant
(For SCK20 only)
H
RoHS & HF
Compliant
(For SCK25 and
SCK30 only)
Product Type
SCK
THINKING
NTC Thermistor
SCK Series
Tolerance
of R
25
L
±15%
M
±20%
N
±25%
Appearance
S
Straight lead
F
Y kink lead
Body Size
20
Ф 20mm
25
Ф 25mm
30
Ф 30mm
Zero Power
Resistance
at 25
℃
(R
25
)
R
25
＜10Ω
0R7:0.7Ω
2R5:2.5Ω
R
25
≧10Ω
100:10Ω
470:47Ω
471:470Ω
Packaging
B
Bulk
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
2
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Structure and Dimensions
(Unit: mm)
Body Size
Dmax. P. d Amax. Lmin. Tmax.
ψ
05 6.5 4±0.6 0.8±0.02
6.5 31 5
ψ
08 9.5 5±0.8 0.8±0.02
9.5 31 5
ψ
10 11.5 5±0.8 0.8±0.02
11.5 31 5
ψ
13 14.5 7.5±1 0.8±0.02
14.5 30 6
ψ
15 16.5 7.5±1 1.0±0.02
16.5 29 6
ψ
20 21.5 7.5±1 1.0±0.02
21.5 26 6
ψ
25 29 7.5±1 1.0±0.02
29 25 7
ψ
30 36 7.5±1 1.0±0.02
36 23 8
F Type (Y kink lead)
(Unit: mm)
Body Size
Dmax. P d Amax. Lmin. Tmax.
ψ
05 6.5 4±0.6 0.8±0.02
11 29 5
ψ
08
9.5 5±0.8 0.8±0.02
13 29 5
ψ
10
11.5 5±0.8 0.8±0.02
15 29 5
ψ
13
14.5 7.5±1 0.8±0.02
17.5 27 6
ψ
15
16.5 7.5±1 1±0.02 19 26 6
ψ
20
21.5 7.5±1 1±0.02 24.5 25 6
ψ
25
29 7.5±1 1±0.02 35 22 7
ψ
30
36 7.5±1 1±0.02 42 22 8
S Type (Straight lead)
(Unit: mm)
Body Size
Dmax.
P d Amax.
Hmax.
C. Tmax.
ψ
05 6.5 4±0.6 0.8±0.02 11 15.5 4.0±1 5
ψ
08 9.5 5±0.8 0.8±0.02 13 17.5 4.0±1 5
ψ
10 11.5 5±0.8 0.8±0.02 15 19.5 4.0±1 5
ψ
13 14.5 7.5±1 0.8±0.02 17.5 21.5 4.0±1 6
ψ
15 16.5 7.5±1 1±0.02 19 23.5 4.0±1 6
ψ
20 21.5 7.5±1 1±0.02 24.5 28.5 4.0±1 6
T Type (L kink lead)
DT
A
L
d
P
T
A
L
d
P
D
T
A
H
d
P
D
C
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
3
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Electrical Characteristics
Safety Approvals Zero Power
Resistance
at 25°C
Max.
Current
at 25
Residual
Resistance
at 25
Imax
Max.
Power
Rating
at 25°C
Dissipation
Factor Thermal
Time
Constant
Operating
Temperature
Range
Part No.
R
25
(Ω) I
max
(A) R
Imax
(Ω)
P
max
(W)
δ (mW/°C)
τ(Sec.)
T
L
~T
U
(°C) UL
cUL
CSA
TUV
CQC
SCK05052
5 2 0.429 √
√ √ √ √
SCK05081
8 1 1.089 √
√ √ √
SCK05101
10 1 1.126 √
√ √ √ √
SCK05121
12 1 1.184 √
√ √ √
SCK0520X3
20 0.3 5.560
1.8 Approx.
15 Approx.
17 -40 ~ +150
√
√ √ √ √
SCK08042
4 2 0.441 √
√ √ √ √
SCK084R72
4.7 2 0.445 √
√ √ √ √
SCK08053
5 3 0.261 √
√ √ √ √
SCK08063
6 3 0.283 √
√ √ √ √
SCK08073
7 3 0.287 √
√ √ √
SCK08082
8 2 0.520 √
√ √ √ √
SCK08102
10 2 0.542 √
√ √ √ √
SCK08152
15 2 0.548 √
√ √ √ √
SCK08201
20 1 1.544 √
√ √ √ √
SCK0830X
30 0.5 4.094
2.3 Approx.
16 Approx.
38 -40 ~ +170
√
√ √ √ √
SCK10015
1 5 0.091 √
√ √ √
SCK101R35
1.3 5 0.095 √
√ √ √
SCK101R55
1.5 5 0.101 √
√ √ √
SCK102R55A
2.5 5 0.120 √
√ √ √ √
SCK10035
3 5 0.127 √
√ √ √ √
SCK10044
4 4 0.161 √
√ √ √ √
SCK10054
5 4 0.180 √
√ √ √ √
SCK106R83
6.8 3 0.270 √
√ √ √ √
SCK10083
8 3 0.278 √
√ √ √ √
SCK10103
10 3 0.297 √
√ √ √ √
SCK10123
12 3 0.301 √
√ √ √ √
SCK10133
13 3 0.356 √
√ √ √ √
SCK10152X
15 2.5 0.442 √
√ √ √ √
SCK10162X
16 2.5 0.471 √
√ √ √ √
SCK10202
20 2 0.646 √
√ √ √ √
SCK10222
22 2 0.659 √
√ √ √
SCK10252
25 2 0.674 √
√ √ √ √
SCK10302
30 2 0.700 √
√ √ √ √
SCK10472
47 2 0.720 √
√ √ √ √
SCK10502
50 2 0.813 √
√ √ √ √
SCK10801
80 1 2.236 √
√ √ √ √
SCK101001
100 1 2.318 √
√ √ √ √
SCK101201
120 1 2.406
2.4 Approx.
17 Approx.
43 -40 ~ +170
√
√ √ √ √
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
4
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Safety Approvals
Zero Power
Resistance
at 25°C
Max.
Current
at 25
Residual
Resistance
at 25
Imax
Max.
Power
Rating
at 25°C
Dissipation
Factor Thermal
Time
Constant
Operating
Temperature
Range
Part No.
R
25
(Ω) I
max
(A) R
Imax
(Ω)
P
max
(W)
δ(mW/°C)
τ(Sec.)
T
L
~T
U
(°C) UL
cUL
CSA
TUV
CQC
SCK13013
1 3 0.174 √
√ √ √
SCK131R37
1.3 7 0.070 √
√ √ √
SCK132R56
2.5 6 0.094 √
√ √ √ √
SCK13045
4 5 0.132 √
√ √ √
SCK134R74
4.7 4 0.168 √
√ √ √
SCK13055
5 5 0.166 √
√ √ √ √
SCK13074
7 4 0.184 √
√ √ √
SCK13084
8 4 0.206 √
√ √ √ √
SCK13104
10 4 0.217 √
√ √ √ √
SCK13124
12 4 0.230 √
√ √ √ √
SCK13153
15 3 0.343 √
√ √ √ √
SCK13163
16 3 0.348 √
√ √ √ √
SCK13183
18 3 0.365 √
√ √ √ √
SCK13203
20 3 0.410
3.1 Approx .
18 Approx.
66 -40 ~ +200
√
√ √ √ √
SCK150R78A
0.7 8 0.051 √
√
√
√
SCK15018
1 8 0.054 √
√
√
SCK151R38
1.3 8 0.064 √
√
√
√
√
SCK151R58
1.5 8 0.068 √
√
√
√
√
SCK15028
2 8 0.078 √
√
√
√
SCK152R58
2.5 8 0.086 √
√
√
√
√
SCK15037
3 7 0.091 √
√
√
√
√
SCK15046
4 6 0.117 √
√
√
√
√
SCK15056
5 6 0.121 √
√
√
√
√
SCK15065
6 5 0.159 √
√ √ √ √
SCK15075
7 5 0.161 √
√ √ √ √
SCK15085
8 5 0.165 √
√ √ √
SCK15105
10 5 0.178 √
√ √ √ √
SCK15125
12 5 0.185 √
√ √ √ √
SCK15154
15 4 0.261 √
√ √ √ √
SCK15164
16 4 0.265 √
√ √ √ √
SCK15184
18 4 0.273 √
√ √ √ √
SCK15204
20 4 0.283 √
√ √ √ √
SCK15224
22 4 0.308 √
√
√
√
SCK15253
25 3 0.425 √
√
√
√
√
SCK15303
30 3 0.461 √
√
√
√
√
SCK15333
33 3 0.484 √
√
√
√
SCK15403
40 3 0.511 √
√
√
√
√
SCK15473
47 3 0.517 √
√
√
√
√
SCK15802X
80 2.5 0.693 √
√
√
√
√
SCK151202
120 2 1.010
3.6
Approx.
21 Approx.
75 -40 ~ +200
√
√
√
√
√
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
5
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Safety Approvals
Zero Power
Resistance
at 25°C
Max.
Current
at 25
Residual
Resistance
at 25
Imax
Max.
Power
Rating
at 25°C
Dissipation
Factor Thermal
Time
Constant
Operating
Temperature
Range
Part No.
R
25
(Ω) I
max
(A) R
Imax
(Ω)
P
max
(W)
δ(mW/°C)
τ(Sec.)
T
L
~T
U
(°C) UL
cUL
CSA
TUV
CQC
SCK200R7
0.7 15 0.035 √
√
√
√
SCK201R0
1 13 0.034 √
√
√
√
SCK201R5
1.5 10.5 0.041 √
√
√
√
SCK202R0
2 10 0.062 √
√
√
√
SCK202R5
2.5 9 0.083 √
√
√
√
SCK203R0
3 8.5 0.078 √
√
√
√
SCK204R0
4 8 0.080 √
√
√
√
SCK204R7
4.7 7.5 0.114 √
√
√
√
SCK205R0
5 7.5 0.118 √
√
√
√
SCK206R0
6 7 0.120 √
√
√
√
SCK206R8
6.8 6.5 0.130 √
√
√
√
SCK207R0
7 6.5 0.132 √
√
√
√
SCK208R0
8 6 0.161 √
√
√
√
SCK20100
10 5.5 0.196 √
√
√
√
SCK20120
12 5 0.197 √
√
√
√
SCK20130
13 5 0.213 √
√
√
√
SCK20150
15 4.5 0.258 √
√
√
√
SCK20160
16 4.5 0.276 √
√
√
√
SCK20180
18 4 0.280 √
√
√
√
SCK20200
20 4 0.306
4.9
Approx.
28
Approx.
113
-40 ~ +200
√
√
√
√
SCK251R0
1 20 0.020 √
√ √ √
SCK251R5
1.5 18.5 0.023 √
√ √ √
SCK252R0
2 18 0.025 √
√ √ √
SCK252R5
2.5 15 0.032 √
√ √ √
SCK253R0
3 14.5 0.042 √
√ √ √
SCK254R0
4 14 0.044 √
√ √ √
SCK254R7
4.7 13 0.052 √
√ √ √
SCK255R0
5 12 0.061 √
√ √ √
SCK256R8
6.8 10.5 0.082 √
√ √ √
SCK257R0
7 10 0.092 √
√ √ √
SCK258R0
8 9 0.115 √
√ √ √
SCK25100
10 8 0.141 √
√ √ √
SCK25120
12 7.5 0.164 √
√ √ √
SCK25150
15 6.5 0.210 √
√ √ √
SCK25180
18 5.5 0.231 √
√ √ √
SCK25200
20 5 0.270
7.0 Approx.
30 Approx.
130 -40 ~ +200
√
√ √ √
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
6
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Note1 : = Tolerance of R
25
Note2：UL&cUL File No. E138827
CSA File No. 97495
TUV File No. R 50050155
CQC File No. CQC05001011984,993,985,942,943,944
CQC05001011988,989,990,963,964,965
Safety Approvals
Zero Power
Resistance
at 25°C
Max.
Current
at 25
Residual
Resistance
at 25
Imax
Max.
Power
Rating
at 25°C
Dissipation
Factor Thermal
Time
Constant
Operating
Temperature
Range
Part No.
R
25
(Ω) I
max
(A) R
Imax
(Ω)
P
max
(W)
δ(mW/°C)
τ(Sec.)
T
L
~T
U
(°C) UL
cUL
CSA
TUV
CQC
SCK301R0
1 30 0.016 √
√ √ √
SCK301R5
1.5 25 0.020 √
√ √ √
SCK302R0
2 23 0.022 √
√ √ √
SCK302R5
2.5 18 0.030 √
√ √ √
SCK303R0
3 17 0.035 √
√ √ √
SCK304R0
4 16 0.048 √
√ √ √
SCK304R7
4.7 15 0.055 √
√ √ √
SCK305R0
5 14 0.057 √
√ √ √
SCK306R8
6.8 12 0.077 √
√ √ √
SCK307R0
7 11.5 0.084 √
√ √ √
SCK308R0
8 10.5 0.100 √
√ √ √
SCK30100
10 10 0.115 √
√ √ √
SCK30120
12 9 0.142 √
√ √ √
SCK30150
15 8 0.175 √
√ √ √
SCK30180
18 7 0.210 √
√ √ √
SCK30200
20 6 0.233
8.0 Approx. 40
Approx.
190 -40 ~ +200
√
√ √ √
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
7
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
0.1
1
10
100
1000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
0.1
1
10
100
1000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
Max. Current Derating Curve
R-T Characteristic Curves (representative)
SCK05052~SCK0520X3
Temperature ( )
Resistance(
Ω
Ω
Ω
Ω
)
SCK08042~SCK0830X
SCK0830X
SCK08201
SCK08152
SCK08102
SCK08082
SCK08073
SCK08063
SCK08053
SCK084R72
SCK08042
Temperature ( )
T
U
：Maximum operating temperature (℃)
T
L
：Minimum operating temperature (℃)
For example：
Ambient temperature(Ta)＝60℃
Maximum operating temperature(T
U
)＝200℃
I
Ta
=[1-(Ta-25)/(Tu-25)]×Imax=80%Imax.
SCK05121
SCK05101
SCK05081
SCK0520X3
SCK05052
100%
0
T
L
025 T
U
Ambient temperature ()
ITa
Imax
Resistance(
Ω
Ω
Ω
Ω
)
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
8
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
0.01
0.1
1
10
100
1000
10000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
0.01
0.1
1
10
100
1000
10000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
0.01
0.1
1
10
100
1000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
R-T Characteristic Curves (representative)
0.01
0.1
1
10
100
1000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
Temperature ( )
SCK10015~SCK101201 SCK101R35~SCK101001
Resistance (Ω)
(K
Temperature ( )
SCK101001
SCK10502
SCK10302
SCK10222
SCK10162X
SCK10133
SCK10103
SCK106R83
SCK10044
SCK102R55A
SCK101R35
Temperature (℃
℃℃
℃)
SCK13183
SCK13153
SCK13104
SCK13074
SCK134R74
SCK132R56
SCK13013
SCK13013~SCK13183
Temperature (℃
℃℃
℃)
SCK13203
SCK13163
SCK13124
SCK13084
SCK13055
SCK13045
SCK131R37
SCK131R37~SCK13203
Resistance (Ω
Ω
Ω
Ω)
(K
SCK101201
SCK10801
SCK10472
SCK10252
SCK10202
SCK10152X
SCK10123
SCK10083
SCK10054
SCK10035
SCK101R55
SCK10015
Resistance (Ω)
(K
Resistance (Ω
Ω
Ω
Ω)
(K
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
9
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
0.01
0.1
1
10
100
1000
10000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
0.01
0.1
1
10
100
1000
10000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
0.01
0.1
1
10
100
1000
10000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
0.01
0.1
1
10
100
1000
10000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
R-T Characteristic Curves (representative)
Resistance(Ω
Ω
Ω
Ω)
(K
Temperature (℃
℃℃
℃)
SCK151202
SCK15403
SCK15224
SCK15164
SCK15105
SCK15065
SCK15037
SCK151R58
SCK150R78A
Resistance(Ω
Ω
Ω
Ω)
(K
Temperature (℃
℃℃
℃)
SCK150R78A~SCK151202 SCK15016~SCK15473
SCK15473
SCK15253
SCK15184
SCK15125
SCK15075
SCK15046
SCK15028
SCK15016
Resistance(Ω
Ω
Ω
Ω)
(K
Temperature (℃
℃℃
℃)
SCK200R7~SCK20180
SCK20180
SCK20150
SCK20120
SCK208R0
SCK206R8
SCK205R0
SCK204R0
SCK202R5
SCK201R5
SCK200R7
Resistance(Ω
Ω
Ω
Ω)
(K
Temperature (℃
℃℃
℃)
SCK151R38~SCK15802X
SCK15802X
SCK15303
SCK15204
SCK15154
SCK15085
SCK15056
SCK152R58
SCK151R38
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
10
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
0.01
0.1
1
10
100
1000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
0.01
0.1
1
10
100
1000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
0.01
0.1
1
10
100
1000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
0.01
0.1
1
10
100
1000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
R-T Characteristic Curves (representative)
Resistance(Ω
Ω
Ω
Ω)
(K
Temperature (℃
℃℃
℃)
SCK20200
SCK20160
SCK20130
SCK20100
SCK207R0
SCK206R0
SCK204R7
SCK203R0
SCK202R0
SCK201R0
SCK201R0~SCK20200
Resistance(Ω
Ω
Ω
Ω)
Temperature (℃
℃℃
℃)
SCK251R0~SCK25180
SCK25180
SCK25120
SCK258R0
SCK256R8
SCK254R7
SCK253R0
SCK252R0
SCK251R0
SCK301R0~SCK30180
SCK30180
SCK30120
SCK308R0
SCK306R8
SCK304R7
SCK303R0
SCK302R0
SCK301R0
Temperature (℃
℃℃
℃)
Resistance(Ω
Ω
Ω
Ω)
Resistance(Ω
Ω
Ω
Ω)
Temperature (℃
℃℃
℃)
SCK251R5~SCK25200
SCK25200
SCK25150
SCK25100
SCK257R0
SCK255R0
SCK254R0
SCK252R5
SCK251R5
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
11
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
0.01
0.1
1
10
100
1000
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
R-T Characteristic Curves (representative)
`
Resistance(Ω
Ω
Ω
Ω)
SCK30200
SCK30150
SCK30100
SCK307R0
SCK305R0
SCK304R0
SCK302R5
SCK301R5
SCK301R5~SCK30200
Temperature (℃
℃℃
℃)
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
12
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
0.1
1
10
0.01 0.1 1 10 100
2
5
0.5
0.2
0.02 0.05 0.2 0.5 2 5 20 50
V-I Characteristic Curves (representative)
Voltage (V)
(K
Current (A)
SCK05052~SCK0520X3
Voltage (V)
(K
Current (A)
SCK08042~SCK08201
0.1
1
10
0.01 0.1 1 10 100
2
5
0.5
0.2
0.02 0.05 0.2 0.5 2 5 20 50
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
13
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
0.1
1
10
0.01 0.1 1 10 1000.02 0.05 0.2 0.5 2 5 20 50
2
5
0.5
0.2
SCK10015
SCK10152X
SCK102R55A
SCK10054
0.1
1
10
0.01 0.1 1 10 100
2
5
0.5
0.2
0.02 0.05 0.2 0.5 2 5 20 50
SCK10015~SCK10222
Voltage (V)
(K
Current (A)
SCK131R37~SCK13203
Voltage (V)
(K
Current (A)
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
14
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
0.1
1
10
0.01 0.1 1 10 100
2
5
0.5
0.2
0.02 0.05 0.2 0.5 2 5 20 50
0.1
1
10
0.01 0.1 1 10 100
2
5
0.5
0.2
0.02 0.05 0.2 0.5 2 5 20 50
SCK151R38~SCK15303
Voltage (V)
(K
Current (A)
SCK200R7~SCK20200
Voltage (V)
Current (A)
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
15
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
0.1
1
10
0.01 0.1 1 10 1000.02 0.05 0.2 0.5 2 5 20 50
0.2
0.5
2
5
0.1
1
10
0.01 0.1 1 10 100
0.02 0.05 0.2 0.5 2 5 20 50
0.2
0.5
2
5
SCK251R0~SCK25121
Voltage (V)
(K
Current (A)
SCK301R0~SCK30200
Voltage (V)
(K
Current (A)
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
16
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Soldering Recommendation
Wave Soldering Profile
Recommended Reworking Conditions with Soldering Iron
Item Conditions
Temperature of Soldering Iron-tip 360 (max.)
Soldering Time 3 sec (max.)
Distance from Thermistor 2 mm (min.)
Temperature
130±20
260 Max
Tamb
Cooling
Time
Soldering Preheating
30~90 sec. ＜1 sec. ＜10 sec.
Note 1
Note 2
Note 3
Note 1: (1~3)/sec
Note 2: Approx. 200/sec
Note 3: 5/sec. (Max)
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
17
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Reliability
Item Standard Test conditions / Methods Specifications
Tensile Strength
of Terminals IEC60068-2-21
Gradually apply the specified force and keep the unit fixed
for 10±1 sec.
Terminal diameter
Force
(mm)
(Kg)
0.5<d 0.80
1.0
0.8<d 1.25
2.0
No visible damage
Solderability IEC60068-2-20
245 ±3 , 3 ± 0.3 sec. At least 95% of terminal
electrode is covered by
new solder
Resistance to
Soldering Heat IEC60068-2-20
260 ± 3, 10 ± 1 sec. No visible damage
R
25
/R
25
10 %
High Temperature
Storage IEC60068-2-2 Tu ± 5 x 1000± 24 hrs No visible damage
R
25
/R
25
20 %
Damp Heat,
Steady State IEC60068-2-3 40 ± 2, 90~95% RH, 1000 ± 24 hrs No visible damage
R
25
/R
25
20 %
Rapid Change of
Temperature IEC60068-2-14
The conditions shown below shall be repeated 5 cycles
Step Temperature ( ) Period (minutes)
1 T
L
± 5 30 ± 3
2 Room temperature 5 ± 3
3 T
U
± 5 30 ± 3
4 Room temperature 5 ± 3
No visible damage
R
25
/R
25
20 %
Max. Current IEC60539-1 25 ± 5 , Imax. x 1000± 24 hrs No visible damage
R
25
/R
25
20 %
Endurance Specification
Standard 25 ± 5 , Imax. , C
T
, 1min ON / 5 mins OFF x 1000 cycles
C
T
= Capacitance at 240 Vac No visible damage
R
25
/R
25
20 %
Insulation Test MIL-STD-202F
-Method 302 1000 V
DC
1 min No visible damage
500 MΩ
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
18
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Ho H
FType S Type
WW1
A
W2
Wo
P2
P1
Po
P3
Do
t
Packaging
Taping Specification
For S (Straight lead) type and F (Y kink lead) type
Body
P
0
P
1
P
2
P
3
H H
0
W
0
W
1
W
2
W A D
0
t Taping
Code Size ±0.5
±0.7 ±1.3 ±0.5
+2/-0
±0.5
±1 ±0.5
Max.
±0.5 Max.
±0.2
±0.2
Figure
Φ
08
12.7
3.45
6.35
12.7
18
16
12
18
0.6
A
Φ10
12.7
3.45
6.35
12.7
18
16
12
18
0.6
A
Φ13
12.7
8.55
12.7
25.4
18
16
12
18
0.6
B
Φ15
12.7
8.45
12.7
25.4
18
16
12
18
0.6
B
A
(P
0
=12.7)
Φ20
12.7
8.45
12.7
25.4
18
16
12
18
0.6
B
Φ08
15
4.6
7.5
15
18
16
12
18
0.6
A
Φ10
15
4.6
7.5
15
18
16
12
18
0.6
A
Φ13
15
3.35
7.5
30
18
16
12
18
0.6
C
Φ15
15
3.25
7.5
30
18
16
12
18
0.6
C
E
(P
0
=15.0)
Φ20
15
3.25
7.5
30
18
16
12
18
0.6
C
Figure A.
For S lead and F lead
Φ8 to Φ10 Type.
Figure B.
For S lead Φ13 to Φ20 type
and F lead Φ13 to Φ20 type
Figure C.
For S lead Φ13 to Φ20 type
and F lead Φ13 to Φ20 type
H
W
A
P3
W1 Wo
W2
H
P1
P2
Ho
Po
tDo
S Type F Type
(Unit: mm)
W2
Wo
W1
W
P2
P1
t
Do
P3
Ho H
F Type S Type
P
0
A
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
19
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Quantity
Bulk Packing
Reel Packing
Ammo Packing
Body Size/mm Standard Lead Type
Quantity (pcs/bag) Cut Lead Type
Quantity (pcs/bag) L kink Type
Quantity (pcs/bag)
Φ05 250 500 ---
Φ08 250 250 200
Φ10 200 250 200
Φ13 100 200 100
Φ15 100 100 100
Φ20 500 (pcs/ box) 50 50
Φ25 168 (pcs/ box) 168 (pcs/ box) ---
Φ30 168 (pcs/ box) 168 (pcs/ box) ---
Body Size/mm D
(mm)
D1
(mm)
W
(mm)
Quantity
(pcs/reel)
Φ05 2,500
Φ08 1,500
Φ10 1,500
Φ13 750
Φ15 750
Φ20
340±10
31±1 55±1
500
Body Size/mm Quantity (pcs/box)
Φ05 1,000
Φ08 1,000
Φ10 1,000
Φ13 500
Φ13 500
Φ15 500
Φ20 500 Body Size
L W H
Φ5~Φ20
348 275 60
(Unit: mm)
D1
D
W
NTC Thermistor：
：：
：SCK Series
Power Thermistor for Limiting Inrush Current
THINKING ELECTRONIC INDUSTRIAL CO., LTD.
20
www.thinking.com.tw
2011.10
All specifications are subject to change without notice.
Storage Conditions of Products
Storage Conditions：
1. Storage Temperature：-10~+40
2. Relative Humidity：75%RH
3. Keep away from corrosive atmosphere and sunlight.
Period of Storage : 1 year