Resettable Fuses - PPTC

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PolySwitch Telecommunication Resettable PTCs

Littelfuse PolySwitch Telecom Resettable PTCs are designed to protect against short-duration high-voltage fault currents typically found in telecom applications. These components help provide protection against damage caused by power cross and power induction surges, as well as help improve the reliability of customer premise and network equipment worldwide. Littelfuse PolySwitch Telecom Resettable PTCs are compatible with high-volume electronics assembly, assist in meeting regulatory equipment requirements, help improve line balance, and are applicable for legacy POTS and modern digital communications equipment. These devices are available in chip, surface-mount, or radial-leaded configurations.

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Part #

Resettable Fuses - PPTC 0.12A 250V RADIAL

250R120U
Littelfuse
1: S/2.80
3,970In Stock

Mfr. Part #
250R120U

Mouser Part #
576-250R120

Littelfuse

Resettable Fuses - PPTC 0.12A 250V RADIAL

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Datasheet

3,970In Stock

S/2.80

S/2.53

S/1.98

S/1.87

View

Min.: 1
Mult.: 1

250R

PCB Mount

Radial

120 mA

60 VDC

240 mA

3 A

16 Ohms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM

250R120-RAZR
Littelfuse
1: S/5.64
1,200In Stock
1,200Expected 12/28/2026

Mfr. Part #
250R120-RAZR

Mouser Part #
576-250R120-RAZR

Littelfuse

Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM

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Datasheet

1,200In Stock

1,200Expected 12/28/2026

S/5.64

S/5.22

S/4.28

S/3.97

Reel

S/2.79

View

Min.: 1
Mult.: 1

: 1,200

250R

PCB Mount

Radial

120 mA

60 VDC

240 mA

3 A

16 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC 250V 3A 10Ohms

TRF600-150S
Littelfuse
1: S/4.79
255In Stock

Mfr. Part #
TRF600-150S

Mouser Part #
650-TRF600-150S

Littelfuse

Resettable Fuses - PPTC 250V 3A 10Ohms

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Datasheet

255In Stock

S/4.79

S/4.40

S/3.44

S/3.37

View

Min.: 1
Mult.: 1

TRF600

PCB Mount

Radial

150 mA

250 VDC

300 mA

3 A

17 Ohms

- 40 C

+ 85 C

5 mm

Bulk

Resettable Fuses - PPTC PTC 60V/250V.145A POLY TELECOM

250R145ZR
Littelfuse
1: S/3.66
1,844In Stock

Mfr. Part #
250R145ZR

Mouser Part #
576-250R145ZR

Littelfuse

Resettable Fuses - PPTC PTC 60V/250V.145A POLY TELECOM

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Datasheet

1,844In Stock

S/3.66

S/3.38

S/2.74

S/2.59

Reel

S/1.57

View

Min.: 1
Mult.: 1

: 1,200

250R

PCB Mount

Radial

145 mA

60 VDC

290 mA

3 A

14 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC 0.15A 600V RADIAL

600R150-RBZR
Littelfuse
1: S/4.83
1,267In Stock

Mfr. Part #
600R150-RBZR

Mouser Part #
576-600R150-RBR

Littelfuse

Resettable Fuses - PPTC 0.15A 600V RADIAL

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Datasheet

1,267In Stock

S/4.83

S/4.48

S/3.60

S/3.41

Reel

S/2.07

View

Min.: 1
Mult.: 1

: 1,200

600R

PCB Mount

Radial

150 mA

60 VDC

300 mA

3 A

22 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RB

250S130-RBDR
Littelfuse
1: S/4.01
2,603In Stock

Mfr. Part #
250S130-RBDR

Mouser Part #
576-250S130-RBDR

Littelfuse

Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RB

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Datasheet

2,603In Stock

Cut Tape

S/4.01

S/3.69

S/2.93

S/2.82

Reel

S/1.70

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

250S

PCB Mount

SMD/SMT

130 mA

60 VDC

260 mA

3 A

13 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC TRF600-160-RA-B-0.5

TRF600-160-RA-B-0.5
Littelfuse
1: S/5.37
6,725In Stock

Mfr. Part #
TRF600-160-RA-B-0.5

Mouser Part #
650-TRF600160RAB0.5

Littelfuse

Resettable Fuses - PPTC TRF600-160-RA-B-0.5

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Datasheet

6,725In Stock

S/5.37

S/4.05

S/3.03

S/2.96

View

Min.: 1
Mult.: 1

TRF600

PCB Mount

Radial

160 mA

250 VDC

320 mA

3 A

16 Ohms

- 40 C

+ 85 C

5 mm

Resettable Fuses - PPTC Polyswitch 0.13A

TSV250-130F-2
Littelfuse
1: S/4.32
31,219In Stock

Mfr. Part #
TSV250-130F-2

Mouser Part #
650-TSV250-130F-2

Littelfuse

Resettable Fuses - PPTC Polyswitch 0.13A

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Datasheet

31,219In Stock

Cut Tape

S/4.32

S/3.97

S/3.27

S/3.03

Reel

S/1.79

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,200

TSV250

PCB Mount

SMD/SMT

130 mA

60 VDC

260 mA

3 A

12 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC .08A 60Vdc MAX 250Vrms MAX

TRF250-080U
Littelfuse
1: S/2.61
20,305In Stock

Mfr. Part #
TRF250-080U

Mouser Part #
650-TRF250-080U

Littelfuse

Resettable Fuses - PPTC .08A 60Vdc MAX 250Vrms MAX

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Datasheet

20,305In Stock

S/2.61

S/2.40

S/1.99

S/1.84

View

Min.: 1
Mult.: 1

TRF250

PCB Mount

Radial

80 mA

60 VDC

160 mA

3 A

33 Ohms

- 40 C

+ 85 C

5 mm

Bulk

Resettable Fuses - PPTC .15A 250Vdc 3A RMS INTER

TRF600-150
Littelfuse
1: S/3.97
10,675In Stock

Mfr. Part #
TRF600-150

Mouser Part #
650-TRF600-150

Littelfuse

Resettable Fuses - PPTC .15A 250Vdc 3A RMS INTER

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Datasheet

10,675In Stock

S/3.97

S/3.64

S/3.01

S/2.80

View

Min.: 1
Mult.: 1

TRF600

PCB Mount

Radial

150 mA

250 VDC

300 mA

3 A

17 Ohms

- 40 C

+ 85 C

5 mm

Bulk

Resettable Fuses - PPTC 600V .15A-HD 3A MAX

TRF600-150-2
Littelfuse
1: S/4.79
22,271In Stock

Mfr. Part #
TRF600-150-2

Mouser Part #
650-TRF600-150-2

Littelfuse

Resettable Fuses - PPTC 600V .15A-HD 3A MAX

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Datasheet

22,271In Stock

Cut Tape

S/4.79

S/4.40

S/3.65

S/3.37

Reel

S/2.10

View

Min.: 1
Mult.: 1

: 1,500

TRF600

PCB Mount

Radial

150 mA

250 VDC

300 mA

3 A

17 Ohms

- 40 C

+ 85 C

5 mm

Reel, Cut Tape

Resettable Fuses - PPTC .15A 250Vdc 600Vrms

TRF600-150-B-0.5-2
Littelfuse
1: S/4.16
6,275In Stock
1,500Expected 7/30/2026

Mfr. Part #
TRF600-150-B-0.5-2

Mouser Part #
650-TRF600-150B0.5-2

Littelfuse

Resettable Fuses - PPTC .15A 250Vdc 600Vrms

Learn More

Datasheet

6,275In Stock

1,500Expected 7/30/2026

Cut Tape

S/4.16

S/3.83

S/3.18

S/3.05

Reel

S/2.54

View

Min.: 1
Mult.: 1

: 1,500

TRF600

PCB Mount

Radial

150 mA

250 VDC

300 mA

3 A

17 Ohms

- 40 C

+ 85 C

5 mm

Reel, Cut Tape

Resettable Fuses - PPTC Polyswitch 0.26A

TS250-130F-2
Littelfuse
1: S/5.25
3,965In Stock

Mfr. Part #
TS250-130F-2

Mouser Part #
650-TS250-130F-2

Littelfuse

Resettable Fuses - PPTC Polyswitch 0.26A

Learn More

Datasheet

3,965In Stock

Cut Tape

S/5.25

S/4.67

S/3.72

S/3.56

Reel

S/2.72

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

TS250

PCB Mount

SMD/SMT

130 mA

60 VDC

260 mA

3 A

20 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 600V .13A-HD 3A MAX (R)

TS600-170F-2
Littelfuse
1: S/21.29
1,778In Stock

Mfr. Part #
TS600-170F-2

Mouser Part #
650-TS600-170F-2

Littelfuse

Resettable Fuses - PPTC 600V .13A-HD 3A MAX (R)

Learn More

Datasheet

1,778In Stock

Cut Tape

S/21.29

S/17.67

S/16.27

S/13.51

S/12.42

Reel

S/9.69

MouseReel Available

Min.: 1
Mult.: 1

: 300

TS600

PCB Mount

SMD/SMT

170 mA

60 VDC

400 mA

3 A

18 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC PolySwitch Surface Mount Resettable PPTC

TS600-200F-RA-B-0.5-2
Littelfuse
1: S/23.08
1,288In Stock

Mfr. Part #
TS600-200F-RA-B-0.5-2

Mouser Part #
650-TS600200FRAB0.52

Littelfuse

Resettable Fuses - PPTC PolySwitch Surface Mount Resettable PPTC

Learn More

Datasheet

1,288In Stock

Cut Tape

S/23.08

S/19.15

S/17.67

S/14.67

Reel

S/10.63

View

MouseReel Available

Min.: 1
Mult.: 1

: 300

TS600

PCB Mount

SMD/SMT

200 mA

60 VDC

400 mA

3 A

13.5 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 250V .250A-HD 3A MAX

TSM600-250F-2
Littelfuse
1: S/31.96
1,193In Stock

Mfr. Part #
TSM600-250F-2

Mouser Part #
650-TSM600-250F-2

Littelfuse

Resettable Fuses - PPTC 250V .250A-HD 3A MAX

Learn More

Datasheet

1,193In Stock

Cut Tape

S/31.96

S/27.05

S/24.99

S/20.71

Reel

S/13.90

View

MouseReel Available

Min.: 1
Mult.: 1

: 200

TSM600

PCB Mount

SMD/SMT

250 mA

250 VDC

860 mA

3 A

7 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC PTC POLYFUSE TELECOM 60V/250V .080A

250R080ZR
Littelfuse
1: S/3.54
886In Stock
1,200Expected 8/31/2026

Mfr. Part #
250R080ZR

Mouser Part #
576-250R080ZR

Littelfuse

Resettable Fuses - PPTC PTC POLYFUSE TELECOM 60V/250V .080A

Learn More

Datasheet

886In Stock

1,200Expected 8/31/2026

S/3.54

S/3.23

S/2.65

S/2.50

View

Reel

S/1.61

Min.: 1
Mult.: 1

: 1,200

250R

PCB Mount

Radial

80 mA

60 VDC

160 mA

3 A

33 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM

250R120-R2ZR
Littelfuse
1: S/5.37
330In Stock

Mfr. Part #
250R120-R2ZR

Mouser Part #
576-250R120-R2ZR

Littelfuse

Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM

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Datasheet

330In Stock

S/5.37

S/4.94

S/4.13

S/3.78

Reel

S/3.14

View

Min.: 1
Mult.: 1

: 1,200

250R

PCB Mount

Radial

120 mA

60 VDC

240 mA

3 A

16 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM

250R120ZR
Littelfuse
1: S/3.66
1,073In Stock

Mfr. Part #
250R120ZR

Mouser Part #
576-250R120ZR

Littelfuse

Resettable Fuses - PPTC PTC 60V/250V.120A POLY TELECOM

Learn More

Datasheet

1,073In Stock

S/3.66

S/3.06

S/2.73

S/2.59

Reel

S/1.83

View

Min.: 1
Mult.: 1

: 1,200

250R

PCB Mount

Radial

120 mA

60 VDC

240 mA

3 A

16 Ohms

- 40 C

+ 85 C

5.1 mm

Ammo Pack

Resettable Fuses - PPTC 0.18A 250V RADIAL

250R180F
Littelfuse
1: S/3.04
415In Stock

Mfr. Part #
250R180F

Mouser Part #
576-250R180

Littelfuse

Resettable Fuses - PPTC 0.18A 250V RADIAL

Learn More

Datasheet

415In Stock

S/3.04

S/2.79

S/2.32

S/1.97

View

Min.: 1
Mult.: 1

250R

PCB Mount

Radial

180 mA

60 V

650 mA

10 A

4 Ohms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RA

250S130-RADR
Littelfuse
1: S/4.01
2,427In Stock

Mfr. Part #
250S130-RADR

Mouser Part #
576-250S130-RADR

Littelfuse

Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RA

Learn More

Datasheet

2,427In Stock

Cut Tape

S/4.01

S/3.42

S/2.74

S/2.62

View

Reel

S/1.84

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

250S

PCB Mount

SMD/SMT

130 mA

60 VDC

260 mA

3 A

10 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC FTC 250V POLYFUSE SMD

250S130DR
Littelfuse
1: S/4.01
86In Stock
4,500Expected 10/1/2026

Mfr. Part #
250S130DR

Mouser Part #
576-250S130DR

Littelfuse

Resettable Fuses - PPTC FTC 250V POLYFUSE SMD

Learn More

Datasheet

86In Stock

4,500Expected 10/1/2026

Cut Tape

S/4.01

S/3.67

S/2.99

S/2.82

View

Reel

S/1.84

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

250S

PCB Mount

SMD/SMT

130 mA

60 VDC

260 mA

3 A

13 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 250/60V 0.13A PTC Vertical

250S130VZR
Littelfuse
1: S/4.01
1,382In Stock
2,400Expected 8/31/2026

Mfr. Part #
250S130VZR

Mouser Part #
576-250S130VZR

Littelfuse

Resettable Fuses - PPTC 250/60V 0.13A PTC Vertical

Learn More

Datasheet

1,382In Stock

2,400Expected 8/31/2026

Cut Tape

S/4.01

S/3.51

S/2.89

S/2.82

Reel

S/2.00

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,200

250S

PCB Mount

SMD/SMT

130 mA

60 VDC

260 mA

3 A

13 Ohms

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Resettable Fuses - PPTC 0.15A 600V RADIAL

600R150F
Littelfuse
1: S/4.13
851In Stock

Mfr. Part #
600R150F

Mouser Part #
576-600R150

Littelfuse

Resettable Fuses - PPTC 0.15A 600V RADIAL

Learn More

Datasheet

851In Stock

S/4.13

S/3.79

S/3.14

S/2.67

View

Min.: 1
Mult.: 1

600R

PCB Mount

Radial

150 mA

60 VDC

300 mA

3 A

17 Ohms

- 40 C

+ 85 C

5.1 mm

Bulk

Resettable Fuses - PPTC 0.15A 600V RADIAL

600R150-RAF
Littelfuse
1: S/6.38
37In Stock
1,600On Order

Mfr. Part #
600R150-RAF

Mouser Part #
576-600R150-RA

Littelfuse

Resettable Fuses - PPTC 0.15A 600V RADIAL

Learn More

Datasheet

37In Stock

1,600On Order

S/6.38

S/4.79

S/3.60

S/3.52

View

Min.: 1
Mult.: 1

600R

PCB Mount

Radial

150 mA

60 VDC

300 mA

3 A

20 Ohms

- 40 C

+ 85 C

5.1 mm

Bulk

PolySwitch Telecommunication Resettable PTCs

Customer Service Office

Company

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Support

1.9 Ohms
2 Ohms
3.1 Ohms
3.4 Ohms
4 Ohms
5 Ohms
7 Ohms
7.5 Ohms
8 Ohms
10 Ohms
12 Ohms
13 Ohms
13.5 Ohms
14 Ohms
15 Ohms
16 Ohms
17 Ohms
18 Ohms
20 Ohms
22 Ohms