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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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
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Termination Style
Hold Current
Maximum Voltage
Trip Current
Current Rating - Max
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Maximum Operating Temperature
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Packaging
Littelfuse Resettable Fuses - PPTC .145A 250V
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1

TRF250 PCB Mount Radial 145 mA 60 V 290 mA 3 A 14 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC 14 Ohms 3 A 60 VDC - 40 C+ 85 C
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1

TRF250 PCB Mount Radial 145 mA 60 VDC 290 mA 3 A 14 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC TRF250-145T-2
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1,500
Mult.: 1,500
: 1,500
TRF250 PCB Mount Radial 145 mA 60 V 290 mA 3 A 7.5 Ohms - 40 C + 85 C 5 mm Reel
Littelfuse Resettable Fuses - PPTC 250V .145A-HD 3A MAX
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10,000
Mult.: 500

TRF250 PCB Mount Radial 145 mA 60 V 290 mA 3 A 14 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1

TRF250 PCB Mount Radial 145 mA 60 V 290 mA 3 A 12 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10,000
Mult.: 500

TRF250 PCB Mount Radial 145 mA 60 V 290 mA 3 A 12 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC 100V 10A 2.2Ohms
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1
: 1,500

TRF250 PCB Mount Radial 183 mA 100 VDC 685 mA 10 A 3.4 Ohms - 40 C + 85 C 5 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Polyswitch 0.183A Straight
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1
: 1,500

TRF250 PCB Mount Radial 183 mA 100 V 685 mA 3 A 3.4 Ohms - 40 C + 85 C 5 mm Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC Polyswitch 0.183A Uncoated
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1

TRF250 PCB Mount Radial 183 mA 100 VDC 685 mA 10 A 3.4 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC Polyswitch 0.183A Uncoated Straight
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1

TRF250 PCB Mount Radial 183 mA 100 V 685 mA 3 A 3.4 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC 250V .12A-HD 3A MAX
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1

TRF250 PCB Mount Radial 120 mA 60 VDC 240 mA 3 A 16 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC .12A 250V
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10,000
Mult.: 500

TRF250 PCB Mount Radial 120 mA 60 V 240 mA 3 A 14 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC .12A 250V
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1,500
Mult.: 1,500
: 1,500

TRF250 PCB Mount Radial 120 mA 60 V 240 mA 3 A 16 Ohms - 40 C + 85 C 5 mm Reel
Littelfuse Resettable Fuses - PPTC 250V .145A-HD 3A MAX
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10,000
Mult.: 500

TRF250 PCB Mount Radial 145 mA 60 V 290 mA 3 A 12 Ohms - 40 C + 85 C Bulk
Littelfuse Resettable Fuses - PPTC 600V .15A-HD 3A MAX
Datasheet
Non-Stocked Lead-Time 17 Weeks
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
Littelfuse Resettable Fuses - PPTC Polyswitch 0.3A
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1,500
Mult.: 1,500
: 1,500

TRF600 PCB Mount Radial 150 mA 250 VDC 300 mA 3 A 17 Ohms - 40 C + 85 C 5 mm Reel
Littelfuse Resettable Fuses - PPTC 600V .16A-HD 3A MAX
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1

TRF600 PCB Mount Radial 160 mA 250 V 320 mA 3 A 18 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC .16A 250Vdc 600Vrms
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10,000
Mult.: 500

TRF600 PCB Mount Radial 160 mA 250 V 320 mA 3 A 16 Ohms - 40 C + 85 C Bulk
Littelfuse Resettable Fuses - PPTC 600V .15A-HD 3A MAX
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 10,000
Mult.: 500

TRF600 PCB Mount Radial 130 mA 250 VDC 300 mA 3 A 22 Ohms - 40 C + 85 C 5 mm Bulk
Littelfuse Resettable Fuses - PPTC .13A 60Vdc 250Vrms
Datasheet
Non-Stocked
Min.: 7,500
Mult.: 1,500
: 1,500

TS250 PCB Mount SMD/SMT 130 mA 60 V 260 mA 1 A 20 Ohms Non-standard - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC Polyswitch 0.26A
Datasheet
Non-Stocked Lead-Time 17 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

TS250 PCB Mount SMD/SMT 130 mA 60 V 260 mA 17 Ohms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .40A 60Vdc 600Vrms
Datasheet
Non-Stocked Lead-Time 17 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 300

TS600 PCB Mount SMD/SMT 400 mA 60 VDC 1 A 3 A 2 Ohms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12 Ohms 3 A 60 VDC - 40 C+ 85 C
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1,500
Mult.: 1,500
: 1,500

TSL250 PCB Mount SMD/SMT 130 mA 60 VDC 260 mA 3 A 12 Ohms - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC Polyswitch 0.13A
Datasheet
Non-Stocked Lead-Time 17 Weeks
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