Resettable Fuses - PPTC – Mouser United Kingdom

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Mounting Style	Termination Style	Hold Current	Maximum Voltage	Trip Current	Current Rating - Max	Resistance	Minimum Operating Temperature	Maximum Operating Temperature	Lead Spacing	Packaging
Resettable Fuses - PPTC 0.15A 600V RADIAL 600R150-RAF Littelfuse 1: £0.803 1,037In Stock 1,000Expected 11/02/2027	Mfr. Part No. 600R150-RAF Mouser Part No 576-600R150-RA	Littelfuse	Resettable Fuses - PPTC 0.15A 600V RADIAL Learn More about Littelfuse radial leaded pptcs	Datasheet	1,037In Stock 1,000Expected 11/02/2027	£0.803 £0.735 £0.61 £0.519 £0.503	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
Resettable Fuses - PPTC 0.15A 600V RADIAL 600R150-RBZR Littelfuse 1: £0.934 1,060In Stock	Mfr. Part No. 600R150-RBZR Mouser Part No 576-600R150-RBR	Littelfuse	Resettable Fuses - PPTC 0.15A 600V RADIAL Learn More about Littelfuse radial leaded pptcs	Datasheet	1,060In Stock	£0.934 £0.856 £0.711 £0.647 Reel £0.465 View £0.585 £0.543 £0.437	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 60V/600V.150A POLY TELECOM 600R150ZR Littelfuse 1: £0.849 1,280In Stock	Mfr. Part No. 600R150ZR Mouser Part No 576-600R150ZR	Littelfuse	Resettable Fuses - PPTC PTC 60V/600V.150A POLY TELECOM Learn More about Littelfuse radial leaded pptcs	Datasheet	1,280In Stock	£0.849 £0.759 £0.649 £0.598 View Reel £0.395 £0.538 £0.496 £0.395	Min.: 1 Mult.: 1 : 1,200	600R	PCB Mount	Radial	150 mA	60 VDC	300 mA	3 A	17 Ohms	- 40 C	+ 85 C	5.1 mm	Ammo Pack
Resettable Fuses - PPTC PTC 60V/600V.160A POLY TELECOM 600R160UR Littelfuse 1: £0.925 815In Stock	Mfr. Part No. 600R160UR Mouser Part No 576-600R160UR	Littelfuse	Resettable Fuses - PPTC PTC 60V/600V.160A POLY TELECOM Learn More about Littelfuse radial leaded pptcs	Datasheet	815In Stock	£0.925 £0.856 £0.707 £0.651 Reel £0.464 View £0.587 £0.434	Min.: 1 Mult.: 1 : 500	600R	PCB Mount	Radial	160 mA	60 VDC	320 mA	3 A	18 Ohms	- 40 C	+ 85 C	5.1 mm	Ammo Pack
Resettable Fuses - PPTC .15A 60Vdc600V Fuses Radial Lead Resetbl TR600-150F-EX Littelfuse 1: £0.811 146In Stock 1,000Expected 06/11/2026	Mfr. Part No. TR600-150F-EX Mouser Part No 650-TR600-150F-EX	Littelfuse	Resettable Fuses - PPTC .15A 60Vdc600V Fuses Radial Lead Resetbl Learn More about Littelfuse telecom ptcs	Datasheet	146In Stock 1,000Expected 06/11/2026	£0.811 £0.747 £0.62 £0.572 View £0.514 £0.473 £0.468 £0.444	Min.: 1 Mult.: 1	TR600	PCB Mount	Radial	150 mA	250 VDC	300 mA	3 A	22 Ohms	- 40 C	+ 85 C	5 mm	Bulk
Resettable Fuses - PPTC .15A 60Vdc 600V TR600-150F-EX-2 Littelfuse 1: £0.978 1,046In Stock	Mfr. Part No. TR600-150F-EX-2 Mouser Part No 650-TR600-150F-EX-2	Littelfuse	Resettable Fuses - PPTC .15A 60Vdc 600V Learn More about Littelfuse telecom ptcs	Datasheet	1,046In Stock	Cut Tape £0.978 £0.856 £0.714 £0.683 Reel £0.477 View £0.615 £0.458	Min.: 1 Mult.: 1 : 600	TR600	PCB Mount	Radial	150 mA	250 VDC	300 mA	3 A	22 Ohms	- 40 C	+ 85 C	5 mm	Reel, Cut Tape
Resettable Fuses - PPTC 60V 3A 25Ohms TRF250-055UT Littelfuse 1: £0.555 1,745In Stock	Mfr. Part No. TRF250-055UT Mouser Part No 650-TRF250-055UT	Littelfuse	Resettable Fuses - PPTC 60V 3A 25Ohms Learn More about Littelfuse telecom ptcs	Datasheet	1,745In Stock	£0.555 £0.507 £0.421 £0.388 View £0.349 £0.348 £0.297 £0.291	Min.: 1 Mult.: 1	TRF250	PCB Mount	Radial	55 mA	60 VDC	170 mA	3 A	35 Ohms	- 40 C	+ 85 C	5 mm	Bulk
Resettable Fuses - PPTC .08A 60UDE MAX 250Vrms MAX TRF250-080T Littelfuse 1: £0.563 1,010In Stock	Mfr. Part No. TRF250-080T Mouser Part No 650-TRF250-080T	Littelfuse	Resettable Fuses - PPTC .08A 60UDE MAX 250Vrms MAX Learn More about Littelfuse telecom ptcs	Datasheet	1,010In Stock	£0.563 £0.518 £0.43 £0.396 View £0.357 £0.328 £0.303 £0.278	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 16 Ohms 3 A 60 VDC - 40 C+ 85 C TRF250-110U Littelfuse 1: £0.526 503In Stock	Mfr. Part No. TRF250-110U Mouser Part No 650-TRF250-110U	Littelfuse	Resettable Fuses - PPTC 16 Ohms 3 A 60 VDC - 40 C+ 85 C Learn More about Littelfuse telecom ptcs	Datasheet	503In Stock	£0.526 £0.485 £0.402 £0.371 View £0.333 £0.307 £0.283 £0.276	Min.: 1 Mult.: 1	TRF250	PCB Mount	Radial	110 mA	60 VDC	220 mA	3 A	16 Ohms	- 40 C	+ 85 C	5 mm	Bulk
Resettable Fuses - PPTC TRF250-110U-B-0.5-2 TRF250-110U-B-0.5-2 Littelfuse 1: £0.698 580In Stock	Mfr. Part No. TRF250-110U-B-0.5-2 Mouser Part No 650-TRF250-110UB0.52	Littelfuse	Resettable Fuses - PPTC TRF250-110U-B-0.5-2 Learn More about Littelfuse telecom ptcs	Datasheet	580In Stock	Cut Tape £0.698 £0.638 £0.53 £0.489 View Reel £0.316 £0.439 £0.405 £0.316	Min.: 1 Mult.: 1 : 1,500	TRF250	PCB Mount	Radial	110 mA	60 V	220 mA	3 A	5 Ohms	- 40 C	+ 85 C	5 mm	Reel, Cut Tape
Resettable Fuses - PPTC 16 Ohms 3 A 60 V - 40 C+ 85 C TRF250-120T Littelfuse 1: £0.615 64In Stock	Mfr. Part No. TRF250-120T Mouser Part No 650-TRF250-120T	Littelfuse	Resettable Fuses - PPTC 16 Ohms 3 A 60 V - 40 C+ 85 C Learn More about Littelfuse telecom ptcs	Datasheet	64In Stock	£0.615 £0.567 £0.529 £0.431 View £0.388 £0.357 £0.329 £0.325 £0.305	Min.: 1 Mult.: 1	TRF250	PCB Mount	Radial	120 mA	60 V	240 mA	3 A	16 Ohms	- 40 C	+ 85 C	5 mm	Bulk
Resettable Fuses - PPTC .12A 60Vdc MAX 250Vrms TRF250-120U Littelfuse 1: £0.571 500In Stock	Mfr. Part No. TRF250-120U Mouser Part No 650-TRF250-120U	Littelfuse	Resettable Fuses - PPTC .12A 60Vdc MAX 250Vrms Learn More about Littelfuse telecom ptcs	Datasheet	500In Stock	£0.571 £0.522 £0.433 £0.40 View £0.36 £0.331 £0.305 £0.303	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
Resettable Fuses - PPTC .12A 250V TRF250-120U-2 Littelfuse 1: £0.728 1,150In Stock	Mfr. Part No. TRF250-120U-2 Mouser Part No 650-TRF250-120U-2	Littelfuse	Resettable Fuses - PPTC .12A 250V Learn More about Littelfuse telecom ptcs	Datasheet	1,150In Stock	Cut Tape £0.728 £0.628 £0.532 £0.478 View Reel £0.313 £0.433 £0.422 £0.313	Min.: 1 Mult.: 1 : 1,500	TRF250	PCB Mount	Radial	120 mA	60 VDC	240 mA	3 A	16 Ohms	- 40 C	+ 85 C	5 mm	Reel, Cut Tape
Resettable Fuses - PPTC 250V .145A-HD 3A MAX TRF250-145-2 Littelfuse 1: £0.563 989In Stock	Mfr. Part No. TRF250-145-2 Mouser Part No 650-TRF250-145-2	Littelfuse	Resettable Fuses - PPTC 250V .145A-HD 3A MAX Learn More about Littelfuse telecom ptcs	Datasheet	989In Stock	Cut Tape £0.563 £0.513 £0.426 £0.394 Reel £0.318 View £0.354 £0.326 £0.317	Min.: 1 Mult.: 1 : 1,500	TRF250	PCB Mount	Radial	145 mA	60 VDC	290 mA	3 A	14 Ohms	- 40 C	+ 85 C	5 mm	Reel, Cut Tape
Resettable Fuses - PPTC .18A 250V TRF250-180 Littelfuse 1: £0.578 2,103In Stock	Mfr. Part No. TRF250-180 Mouser Part No 650-TRF250-180	Littelfuse	Resettable Fuses - PPTC .18A 250V Learn More about Littelfuse telecom ptcs	Datasheet	2,103In Stock	£0.578 £0.532 £0.443 £0.409 View £0.368 £0.338 £0.295 £0.288	Min.: 1 Mult.: 1	TRF250	PCB Mount	Radial	180 mA	100 VDC	650 mA	10 A	4 Ohms	- 40 C	+ 85 C	5 mm	Bulk
Resettable Fuses - PPTC .18A 250V TRF250-180-2 Littelfuse 1: £0.668 2,395In Stock	Mfr. Part No. TRF250-180-2 Mouser Part No 650-TRF250-180-2	Littelfuse	Resettable Fuses - PPTC .18A 250V Learn More about Littelfuse telecom ptcs	Datasheet	2,395In Stock	Cut Tape £0.668 £0.611 £0.507 £0.469 View Reel £0.301 £0.421 £0.388 £0.301	Min.: 1 Mult.: 1 : 1,500	TRF250	PCB Mount	Radial	180 mA	100 VDC	650 mA	10 A	4 Ohms	- 40 C	+ 85 C	5 mm	Reel, Cut Tape
Resettable Fuses - PPTC Polyswitch 0.183A kinked TRF250-183 Littelfuse 1: £0.54 2,000In Stock	Mfr. Part No. TRF250-183 Mouser Part No 650-TRF250-183	Littelfuse	Resettable Fuses - PPTC Polyswitch 0.183A kinked Learn More about Littelfuse telecom ptcs	Datasheet	2,000In Stock	£0.54 £0.495 £0.41 £0.379 View £0.34 £0.313 £0.29 £0.282	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
Resettable Fuses - PPTC Polyswitch 0.183A straight TRF250-183S Littelfuse 1: £0.54 499In Stock	Mfr. Part No. TRF250-183S Mouser Part No 650-TRF250-183S	Littelfuse	Resettable Fuses - PPTC Polyswitch 0.183A straight Learn More about Littelfuse telecom ptcs	Datasheet	499In Stock	£0.54 £0.495 £0.41 £0.379 View £0.34 £0.313 £0.29 £0.289	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
Resettable Fuses - PPTC 100Vdc 10Arms PolySwitch Reset Dev TRF250-184 Littelfuse 1: £0.638 523In Stock	Mfr. Part No. TRF250-184 Mouser Part No 650-TRF250-184	Littelfuse	Resettable Fuses - PPTC 100Vdc 10Arms PolySwitch Reset Dev Learn More about Littelfuse telecom ptcs	Datasheet	523In Stock	£0.638 £0.588 £0.489 £0.451 View £0.405 £0.373 £0.344 £0.342	Min.: 1 Mult.: 1	TRF250	PCB Mount	Radial	184 mA	100 VDC	1 A	10 A	3.1 Ohms	0 C	+ 85 C	5 mm	Bulk
Resettable Fuses - PPTC .12A 250V TRF250-120T-R2-B-0.5 Littelfuse 1: £0.638 464In Stock 10,000Expected 11/02/2027	Mfr. Part No. TRF250-120T-R2-B-0.5 Mouser Part No 650-TRF250120TR2B.5	Littelfuse	Resettable Fuses - PPTC .12A 250V Learn More about Littelfuse telecom ptcs	Datasheet	464In Stock 10,000Expected 11/02/2027	£0.638 £0.585 £0.485 £0.448 View £0.402 £0.371 £0.341 £0.319	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
Resettable Fuses - PPTC 16 Ohms 3 A 60 VDC - 40 C+ 85 C TRF250-120T-RA-B-0.5 Littelfuse 1: £0.736 363In Stock	Mfr. Part No. TRF250-120T-RA-B-0.5 Mouser Part No 650-TRF250120TRAB0.5	Littelfuse	Resettable Fuses - PPTC 16 Ohms 3 A 60 VDC - 40 C+ 85 C Learn More about Littelfuse telecom ptcs	Datasheet	363In Stock	£0.736 £0.659 £0.546 £0.502 View £0.452 £0.356 £0.328 £0.325	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
Resettable Fuses - PPTC 600V .15A-HD 3A MAX TRF600-150-RB Littelfuse 1: £0.841 1,239In Stock	Mfr. Part No. TRF600-150-RB Mouser Part No 650-TRF600-150-RB	Littelfuse	Resettable Fuses - PPTC 600V .15A-HD 3A MAX Learn More about Littelfuse telecom ptcs	Datasheet	1,239In Stock	£0.841 £0.78 £0.643 £0.594 View £0.547 £0.53 £0.464	Min.: 1 Mult.: 1	TRF600	PCB Mount	Radial	130 mA	250 VDC	300 mA	3 A	22 Ohms	- 40 C	+ 85 C	5 mm	Bulk
Resettable Fuses - PPTC .16A 250V DC 600V TRF600-160 Littelfuse 1: £0.849 1,596In Stock 2,500Expected 07/12/2026	Mfr. Part No. TRF600-160 Mouser Part No 650-TRF600-160	Littelfuse	Resettable Fuses - PPTC .16A 250V DC 600V Learn More about Littelfuse telecom ptcs	Datasheet	1,596In Stock 2,500Expected 07/12/2026	£0.849 £0.78 £0.645 £0.595 View £0.535 £0.492 £0.464	Min.: 1 Mult.: 1	TRF600	PCB Mount	Radial	160 mA	250 VDC	320 mA	3 A	18 Ohms	- 40 C	+ 85 C	5 mm	Bulk
Resettable Fuses - PPTC .16A 250Vdc 600V RMS TRF600-160-2 Littelfuse 1: £1.07 200In Stock	Mfr. Part No. TRF600-160-2 Mouser Part No 650-TRF600-160-2	Littelfuse	Resettable Fuses - PPTC .16A 250Vdc 600V RMS Learn More about Littelfuse telecom ptcs	Datasheet	200In Stock	Cut Tape £1.07 £0.995 £0.818 £0.759 Reel £0.525 View £0.678 £0.478	Min.: 1 Mult.: 1 : 600	TRF600	PCB Mount	Radial	160 mA	250 VDC	320 mA	3 A	18 Ohms	- 40 C	+ 85 C	5 mm	Reel, Cut Tape
Resettable Fuses - PPTC 7 Ohms 3 A 250 VDC - 40 C+ 85 C TRF600-250 Littelfuse 1: £1.39 623In Stock 6,500On Order	Mfr. Part No. TRF600-250 Mouser Part No 650-TRF600-250	Littelfuse	Resettable Fuses - PPTC 7 Ohms 3 A 250 VDC - 40 C+ 85 C Learn More about Littelfuse telecom ptcs	Datasheet	623In Stock 6,500On Order On Order Ship Dates Mfr. No: TRF600-250 Stock: 623 Can Dispatch Immediately On Order: 1,500 Expected 15/12/2026 5,000 Expected 22/02/2027 Factory Lead Time: 17 Weeks	£1.39 £1.28 £1.07 £0.986 View £0.882 £0.803 £0.656	Min.: 1 Mult.: 1	TRF600	PCB Mount	Radial	250 mA	250 VDC	850 mA	3 A	7 Ohms	- 40 C	+ 85 C	5 mm	Bulk