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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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 600R150F Littelfuse 1: ¥176.1 625In Stock	Mfr. Part # 600R150F Mouser Part # 576-600R150	Littelfuse	Resettable Fuses - PPTC 0.15A 600V RADIAL Learn More about Littelfuse radial leaded pptcs	Datasheet	625In Stock	¥176.1 ¥161.6 ¥134 ¥114.1 View ¥105.1 ¥100.3 ¥96	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: ¥177.7 1,037In Stock 1,000Expected 2/1/2027	Mfr. Part # 600R150-RAF Mouser Part # 576-600R150-RA	Littelfuse	Resettable Fuses - PPTC 0.15A 600V RADIAL Learn More about Littelfuse radial leaded pptcs	Datasheet	1,037In Stock 1,000Expected 2/1/2027	¥177.7 ¥162.6 ¥135 ¥114.9 View ¥105.8 ¥99.8 ¥96.7	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: ¥206 1,060In Stock	Mfr. Part # 600R150-RBZR Mouser Part # 576-600R150-RBR	Littelfuse	Resettable Fuses - PPTC 0.15A 600V RADIAL Learn More about Littelfuse radial leaded pptcs	Datasheet	1,060In Stock	¥206 ¥191 ¥157.5 ¥145.3 Reel ¥103 View ¥132.9 ¥122.9 ¥96.7	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: ¥187.7 1,280In Stock	Mfr. Part # 600R150ZR Mouser Part # 576-600R150ZR	Littelfuse	Resettable Fuses - PPTC PTC 60V/600V.150A POLY TELECOM Learn More about Littelfuse radial leaded pptcs	Datasheet	1,280In Stock	¥187.7 ¥172.7 ¥143.5 ¥132.4 View Reel ¥87.2 ¥118.9 ¥109.8 ¥87.2	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: ¥204.3 815In Stock	Mfr. Part # 600R160UR Mouser Part # 576-600R160UR	Littelfuse	Resettable Fuses - PPTC PTC 60V/600V.160A POLY TELECOM Learn More about Littelfuse radial leaded pptcs	Datasheet	815In Stock	¥204.3 ¥189.4 ¥156.5 ¥144.3 Reel ¥102.5 View ¥129.7 ¥96	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: ¥179.4 199In Stock 1,000Expected 11/5/2026	Mfr. Part # TR600-150F-EX Mouser Part # 650-TR600-150F-EX	Littelfuse	Resettable Fuses - PPTC .15A 60Vdc600V Fuses Radial Lead Resetbl Learn More about Littelfuse telecom ptcs	Datasheet	199In Stock 1,000Expected 11/5/2026	¥179.4 ¥165.3 ¥137.2 ¥126.6 View ¥113.8 ¥113.6 ¥104.8 ¥104.6 ¥98.3	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: ¥206 1,046In Stock	Mfr. Part # TR600-150F-EX-2 Mouser Part # 650-TR600-150F-EX-2	Littelfuse	Resettable Fuses - PPTC .15A 60Vdc 600V Learn More about Littelfuse telecom ptcs	Datasheet	1,046In Stock	Cut Tape ¥206 ¥169.4 ¥154.6 ¥151.6 Reel ¥105.5 View ¥136.2 ¥101.3	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: ¥122.9 1,745In Stock	Mfr. Part # TRF250-055UT Mouser Part # 650-TRF250-055UT	Littelfuse	Resettable Fuses - PPTC 60V 3A 25Ohms Learn More about Littelfuse telecom ptcs	Datasheet	1,745In Stock	¥122.9 ¥112.3 ¥93.2 ¥86 View ¥77.2 ¥77.1 ¥74.7 ¥65.6 ¥64.3	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: ¥124.6 1,010In Stock	Mfr. Part # TRF250-080T Mouser Part # 650-TRF250-080T	Littelfuse	Resettable Fuses - PPTC .08A 60UDE MAX 250Vrms MAX Learn More about Littelfuse telecom ptcs	Datasheet	1,010In Stock	¥124.6 ¥114.6 ¥95 ¥87.7 View ¥78.9 ¥72.6 ¥66.9 ¥61.6	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 TRF250-110U-B-0.5-2 TRF250-110U-B-0.5-2 Littelfuse 1: ¥154.5 580In Stock	Mfr. Part # TRF250-110U-B-0.5-2 Mouser Part # 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 ¥154.5 ¥141.2 ¥114.4 ¥108.1 View Reel ¥69.9 ¥97.2 ¥89.7 ¥69.9	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: ¥136.2 64In Stock 1,000Expected 1/5/2027	Mfr. Part # TRF250-120T Mouser Part # 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 1,000Expected 1/5/2027	¥136.2 ¥125.6 ¥109.5 ¥95.3 View ¥85.7 ¥78.9 ¥72.3 ¥71.3 ¥67.4	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: ¥126.2 500In Stock	Mfr. Part # TRF250-120U Mouser Part # 650-TRF250-120U	Littelfuse	Resettable Fuses - PPTC .12A 60Vdc MAX 250Vrms Learn More about Littelfuse telecom ptcs	Datasheet	500In Stock	¥126.2 ¥115.4 ¥95.8 ¥88.5 View ¥79.6 ¥73.3 ¥67.4 ¥66.4	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: ¥161.1 1,150In Stock	Mfr. Part # TRF250-120U-2 Mouser Part # 650-TRF250-120U-2	Littelfuse	Resettable Fuses - PPTC .12A 250V Learn More about Littelfuse telecom ptcs	Datasheet	1,150In Stock	Cut Tape ¥161.1 ¥135.4 ¥108.8 ¥103.3 View Reel ¥69.3 ¥94.5 ¥92.4 ¥69.3	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: ¥124.6 989In Stock	Mfr. Part # TRF250-145-2 Mouser Part # 650-TRF250-145-2	Littelfuse	Resettable Fuses - PPTC 250V .145A-HD 3A MAX Learn More about Littelfuse telecom ptcs	Datasheet	989In Stock	Cut Tape ¥124.6 ¥113.6 ¥94.3 ¥87 Reel ¥70.3 View ¥78.2 ¥72.1 ¥70.1	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: ¥121.3 2,103In Stock	Mfr. Part # TRF250-180 Mouser Part # 650-TRF250-180	Littelfuse	Resettable Fuses - PPTC .18A 250V Learn More about Littelfuse telecom ptcs	Datasheet	2,103In Stock	¥121.3 ¥111.3 ¥92.4 ¥85.2 View ¥76.7 ¥70.6 ¥65.1 ¥63.8	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: ¥147.8 2,395In Stock	Mfr. Part # TRF250-180-2 Mouser Part # 650-TRF250-180-2	Littelfuse	Resettable Fuses - PPTC .18A 250V Learn More about Littelfuse telecom ptcs	Datasheet	2,395In Stock	Cut Tape ¥147.8 ¥135.2 ¥112.3 ¥103.6 View Reel ¥66.6 ¥93.2 ¥85.9 ¥66.6	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: ¥119.6 2,000In Stock	Mfr. Part # TRF250-183 Mouser Part # 650-TRF250-183	Littelfuse	Resettable Fuses - PPTC Polyswitch 0.183A kinked Learn More about Littelfuse telecom ptcs	Datasheet	2,000In Stock	¥119.6 ¥109.5 ¥90.9 ¥83.9 View ¥75.4 ¥69.4 ¥64.1 ¥62.5	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: ¥119.6 499In Stock	Mfr. Part # TRF250-183S Mouser Part # 650-TRF250-183S	Littelfuse	Resettable Fuses - PPTC Polyswitch 0.183A straight Learn More about Littelfuse telecom ptcs	Datasheet	499In Stock	¥119.6 ¥109.5 ¥90.9 ¥83.9 View ¥75.4 ¥69.4 ¥64.1 ¥63.9	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: ¥141.2 523In Stock	Mfr. Part # TRF250-184 Mouser Part # 650-TRF250-184	Littelfuse	Resettable Fuses - PPTC 100Vdc 10Arms PolySwitch Reset Dev Learn More about Littelfuse telecom ptcs	Datasheet	523In Stock	¥141.2 ¥130.2 ¥108.1 ¥99.8 View ¥89.7 ¥82.6 ¥76.1 ¥75.7	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: ¥132.9 464In Stock 10,000Expected 1/7/2027	Mfr. Part # TRF250-120T-R2-B-0.5 Mouser Part # 650-TRF250120TR2B.5	Littelfuse	Resettable Fuses - PPTC .12A 250V Learn More about Littelfuse telecom ptcs	Datasheet	464In Stock 10,000Expected 1/7/2027	¥132.9 ¥122.1 ¥101.3 ¥93.5 View ¥84 ¥77.4 ¥71.3 ¥70.4	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: ¥162.8 363In Stock	Mfr. Part # TRF250-120T-RA-B-0.5 Mouser Part # 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	¥162.8 ¥149.2 ¥114.4 ¥111.8 View ¥102.2 ¥78.7 ¥72.6 ¥71.9	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: ¥186 1,239In Stock 1,500Expected 1/5/2027	Mfr. Part # TRF600-150-RB Mouser Part # 650-TRF600-150-RB	Littelfuse	Resettable Fuses - PPTC 600V .15A-HD 3A MAX Learn More about Littelfuse telecom ptcs	Datasheet	1,239In Stock 1,500Expected 1/5/2027	¥186 ¥172.7 ¥142.3 ¥131.4 View ¥125.2 ¥119.3 ¥102.5	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: ¥187.7 1,596In Stock 2,500Expected 2/8/2027	Mfr. Part # TRF600-160 Mouser Part # 650-TRF600-160	Littelfuse	Resettable Fuses - PPTC .16A 250V DC 600V Learn More about Littelfuse telecom ptcs	Datasheet	1,596In Stock 2,500Expected 2/8/2027	¥187.7 ¥172.7 ¥142.7 ¥131.7 View ¥118.4 ¥109 ¥102.6	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: ¥224.2 200In Stock	Mfr. Part # TRF600-160-2 Mouser Part # 650-TRF600-160-2	Littelfuse	Resettable Fuses - PPTC .16A 250Vdc 600V RMS Learn More about Littelfuse telecom ptcs	Datasheet	200In Stock	Cut Tape ¥224.2 ¥206 ¥171.1 ¥157.6 Reel ¥109.6 View ¥141.7 ¥105.6	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: ¥307.3 623In Stock 6,500On Order	Mfr. Part # TRF600-250 Mouser Part # 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. #: TRF600-250 Stock: 623 Can Ship Immediately On Order: 1,500 Expected 12/15/2026 5,000 Expected 2/15/2027 Factory Lead-Time: 17 Weeks	¥307.3 ¥280.7 ¥235.9 ¥217.6 View ¥196 ¥177.7 ¥159 ¥145.2	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

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