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© 2018 Littelfuse, Inc. Revised: February 26, 2018

Specifications are subject to change without notice.

Inrush Current Limiting Power Thermistor

Power Thermistors

Specifications

Part

Number

Resistance

Ohms

@25°C

*Resistance

Tol. ± %

@ 25°C

Imax Max. Steady

State Current I

MAX

(A)

Nominal Resistance

@ Max. Current,

RImax (Ohms)

RImax Resis.

@ Max.

Current Ohms

Lead Diameter

Nominal

(Inch)

ST0R713B

0.7

25

13

0.025

0.025

0.04

ST1R005B

1

30

5

0.040

0.09

0.024

ST1R020B

1

15

20

0.030

0.015

0.04

ST1R030B

1

25

30

0.050

0.015

0.04

ST1R508B

1.5

20

8

0.040

0.6

0.032

ST2R018B

2

20

18

0.135

0.03

0.04

ST2R503B

2.5

20

3

0.070

0.15

0.032

ST2R507B

2.5

20

7

0.070

0.05

0.032

ST2R509B

2.5

20

9

0.060

0.04

0.032

ST2R510B

2.5

20

10

0.200

0.04

0.04

ST10001B

10

20

1

0.090

0.65

0.024

ST10003B

10

20

3

0.015

0.2

0.032

ST10005B

10

20

5

0.015

0.2

0.04

ST10006B

10

20

6

0.600

0.15

0.04

ST10010B

10

20

10

0.030

0.1

0.04

ST12001B

12

20

1

0.150

1.19

0.032

ST15004C

15

20

4

0.050

0.25

0.032

ST16002D

16

20

2

0.040

0.47

0.032

ST20001C

20

20

0.3

0.110

1

0.024

ST20002B

20

20

1.75

0.400

0.6

0.032

ST25002C

25

20

2

0.100

0.64

0.032

ST20100B

200

20

0.1

0.170

6.3

0.018

*Resistance tolerances of ± 1%, 2%, and 5% are available upon request

ST Series Inrush Current Limiters