Resettable Fuses - PPTC

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PTC Fuses for AC/DC Power Supplies

A Positive Thermal Coefficient fuse, or PTC thermistor, is a thermally sensitive semiconductor resistor that increases in resistance as temperature increases to limit current to a load. When the voltage input for a power supply is too far above or below what is specified, the excess current can damage components. Besides shutting down the power supply altogether, one can effectively limit the current by using the predictable resistive response of a PTC.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) 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	Package / Case	Minimum Operating Temperature	Maximum Operating Temperature	Lead Spacing	Qualification	Packaging
Resettable Fuses - PPTC 1.85A 33V 2920 2920L185DR Littelfuse 1: $934 43.533In Stock 40.500Expected 12/24/2026	Mfr. Part # 2920L185DR Mouser Part # 576-2920L185	Littelfuse	Resettable Fuses - PPTC 1.85A 33V 2920 Learn More about Littelfuse 2920l polyswitch resettable fuses	Datasheet	43.533In Stock 40.500Expected 12/24/2026	Cut Tape $934 $809 $710 $655 Reel $376 View $589 $543 $365 MouseReel Available	Min.: 1 Mult.: 1 : 1.500	2920L	SMD/SMT	SMD/SMT	1.85 A	33 VDC	3.7 A	40 A	150 mOhms	2920 (7450 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 72V 1.6A-HD 40A MAX MF-RX160/72-0 Bourns 1: $387 11.156In Stock	Mfr. Part # MF-RX160/72-0 Mouser Part # 652-MF-RX160/72-0	Bourns	Resettable Fuses - PPTC 72V 1.6A-HD 40A MAX Learn More about Bourns multifuse	Datasheet	11.156In Stock	$387 $352 $314 $309 View $306 $283 $261 $215	Min.: 1 Mult.: 1	MF-RX/72	PCB Mount	Radial	1.6 A	72 VDC	3.2 A	40 A	140 mOhms		- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC 250V 130MA-HD 3A MAX MF-SD013/250-2 Bourns 1: $1.549 20.074In Stock	Mfr. Part # MF-SD013/250-2 Mouser Part # 652-MF-SD013/250-2	Bourns	Resettable Fuses - PPTC 250V 130MA-HD 3A MAX Learn More about Bourns mf sd013 250	Datasheet	20.074In Stock	Cut Tape $1.549 $1.162 $957 $881 View Reel $556 $792 $730 $673 $612 $556 MouseReel Available	Min.: 1 Mult.: 1 : 4.000	MF-SD/250	PCB Mount	SMD/SMT	130 mA	60 VDC	260 mA	3 A	7 Ohms		- 45 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC PTC POLYFUSE RADIAL 72V 1.85A 72R185XMR Littelfuse 1: $2.028 3.466In Stock	Mfr. Part # 72R185XMR Mouser Part # 576-72R185XMR	Littelfuse	Resettable Fuses - PPTC PTC POLYFUSE RADIAL 72V 1.85A Learn More about Littelfuse radial leaded pptcs	Datasheet	3.466In Stock	$2.028 $1.880 $1.561 $1.435 Reel $921 View $1.287 $1.196 $897 $864	Min.: 1 Mult.: 1 : 1.000	72R	PCB Mount	Radial	1.85 A	72 VDC	3.7 A	40 A	190 mOhms		- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC 9A 30V 100A Imax RUEF900 Littelfuse 1: $1.310 17.181In Stock	Mfr. Part # RUEF900 Mouser Part # 650-RUEF900	Littelfuse	Resettable Fuses - PPTC 9A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	17.181In Stock	$1.310 $1.162 $985 $913 View $811 $755 $722	Min.: 1 Mult.: 1	RUEF	PCB Mount	Radial	9 A	30 VDC	18 A	100 A	20 mOhms		- 40 C	+ 85 C	10.9 mm		Bulk
Resettable Fuses - PPTC RESETTABLE FUSE 230VOLT 10OHM CMF-RL10-10-0 Bourns 1: $763 9.238In Stock	Mfr. Part # CMF-RL10-10-0 Mouser Part # 652-CMF-RL10-10-0	Bourns	Resettable Fuses - PPTC RESETTABLE FUSE 230VOLT 10OHM Learn More about Bourns multifuse	Datasheet	9.238In Stock	$763 $665 $580 $533 View $477 $444 $415 $403 $358	Min.: 1 Mult.: 1	CMF-RL	PCB Mount	Radial	150 mA	60 VDC	300 mA	3 A	10 Ohms		- 40 C	+ 125 C	5 mm		Tray
Resettable Fuses - PPTC .1A 60V Mini SMD AEC-Q200 MINIASMDC010F-2 Littelfuse 1: $741 9.911In Stock	Mfr. Part # MINIASMDC010F-2 Mouser Part # 650-MINIASMDC010F-2	Littelfuse	Resettable Fuses - PPTC .1A 60V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	9.911In Stock	Cut Tape $741 $677 $564 $521 Reel $313 View $467 $398 $288 $281 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	miniASMD	SMD/SMT	SMD/SMT	100 mA	60 VDC	300 mA	40 A	12.7 Ohms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .5A 24V Mini SMD AEC-Q200 MINIASMDC050F-2 Littelfuse 1: $638 10.183In Stock	Mfr. Part # MINIASMDC050F-2 Mouser Part # 650-MINIASMDC050F-2	Littelfuse	Resettable Fuses - PPTC .5A 24V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	10.183In Stock	Cut Tape $638 $586 $486 $449 Reel $270 View $403 $343 $248 $240 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	miniASMD	SMD/SMT	SMD/SMT	500 mA	24 VDC	1 A	100 A	1 Ohms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 24V 1.8A-HD 100A MAX MF-LS180 Bourns 1: $627 13.377In Stock	Mfr. Part # MF-LS180 Mouser Part # 652-MF-LS180	Bourns	Resettable Fuses - PPTC 24V 1.8A-HD 100A MAX Learn More about Bourns multifuse	Datasheet	13.377In Stock	$627 $541 $469 $432 View $396 $373 $352 $340 $320	Min.: 1 Mult.: 1	MF-LS	Strap Mount	Axial	1.8 A	24 VDC	3.8 A	100 A	68 mOhms		- 40 C	+ 85 C			Bulk
Resettable Fuses - PPTC 1.1A 24V Mini SMD AEC-Q200 MINIASMDC110F/24-2 Littelfuse 1: $627 2.834In Stock	Mfr. Part # MINIASMDC110F/24-2 Mouser Part # 650-MINIASMDC110F/24	Littelfuse	Resettable Fuses - PPTC 1.1A 24V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	2.834In Stock	Cut Tape $627 $576 $505 $469 Reel $338 View $435 $409 $329 $314 MouseReel Available	Min.: 1 Mult.: 1 : 1.500	miniASMD	SMD/SMT	SMD/SMT	1.1 A	24 VDC	2.2 A	20 A	180 mOhms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC PTC 16V 10A POLY RADIAL LEADS 16R1000GMR Littelfuse 1: $1.914 1.466In Stock	Mfr. Part # 16R1000GMR Mouser Part # 576-16R1000GMR	Littelfuse	Resettable Fuses - PPTC PTC 16V 10A POLY RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	1.466In Stock	Cut Tape $1.914 $1.527 $1.344 $1.208 Reel $884 View $1.111 $1.040 $810	Min.: 1 Mult.: 1 : 1.000	16R	PCB Mount	Radial	10 A	16 VDC	17 A	100 A	10.2 mOhms		- 40 C	+ 85 C	5.1 mm		Reel, Cut Tape
Resettable Fuses - PPTC 60V .170A RADIAL LEADS 60R017XPR Littelfuse 1: $695 2.816In Stock	Mfr. Part # 60R017XPR Mouser Part # 576-60R017XPR	Littelfuse	Resettable Fuses - PPTC 60V .170A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	2.816In Stock	$695 $639 $531 $490 Reel $295 View $440 $375 $271 $264	Min.: 1 Mult.: 1 : 2.000	60R	PCB Mount	Radial	170 mA	60 VDC	340 mA	40 A	8 Ohms		- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC .75A 24V Mini SMD AEC-Q200 MINIASMDC075F/24-2 Littelfuse 1: $729 2.526In Stock	Mfr. Part # MINIASMDC075F/24-2 Mouser Part # 650-MINIASMDC075F/24	Littelfuse	Resettable Fuses - PPTC .75A 24V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	2.526In Stock	Cut Tape $729 $638 $587 $547 Reel $373 View $502 $449 $343 $330 MouseReel Available	Min.: 1 Mult.: 1 : 1.500	miniASMD	SMD/SMT	SMD/SMT	750 mA	24 VDC	1.5 A	40 A	290 mOhms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 30V POLYFUSE 1.35A RADIAL LEADS 30R135UPR Littelfuse 1: $684 3.156In Stock	Mfr. Part # 30R135UPR Mouser Part # 576-30R135UPR	Littelfuse	Resettable Fuses - PPTC 30V POLYFUSE 1.35A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	3.156In Stock	$684 $587 $502 $457 Reel $320 View $435 $373 $295 $289	Min.: 1 Mult.: 1 : 2.000	30R	PCB Mount	Radial	1.35 A	30 VDC	2.7 A	40 A	130 mOhms		- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC 1.1A 16V Mini SMD AEC-Q200 MINIASMDC110F/16-2 Littelfuse 1: $615 3.988In Stock	Mfr. Part # MINIASMDC110F/16-2 Mouser Part # 650-MINIASMDC110F/16	Littelfuse	Resettable Fuses - PPTC 1.1A 16V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	3.988In Stock	Cut Tape $615 $526 $457 $419 Reel $340 View $385 $349 $335 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	miniASMD	SMD/SMT	SMD/SMT	1.1 A	16 VDC	2.2 A	100 A	180 mOhms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 1.10A 33V 2920 2920L100PR Littelfuse 1: $809 50.040In Stock	Mfr. Part # 2920L100PR Mouser Part # 576-2920L100	Littelfuse	Resettable Fuses - PPTC 1.10A 33V 2920 Learn More about Littelfuse 2920l polyswitch resettable fuses	Datasheet	50.040In Stock	Cut Tape $809 $721 $613 $565 View Reel $355 $508 $432 $355 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	2920L	SMD/SMT	SMD/SMT	1.1 A	33 VDC	2.2 A	40 A	410 mOhms	2920 (7450 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 60V 40A 12.7Ohms MINISMDC010F-2 Littelfuse 1: $615 31.212In Stock	Mfr. Part # MINISMDC010F-2 Mouser Part # 650-MINISMDC010F-2	Littelfuse	Resettable Fuses - PPTC 60V 40A 12.7Ohms Learn More about Littelfuse polyswitch smd ptcs	Datasheet	31.212In Stock	Cut Tape $615 $542 $461 $352 View Reel $267 $319 $301 $267 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	miniSMD	SMD/SMT	SMD/SMT	100 mA	60 VDC	300 mA	40 A	12.7 Ohms	1812 (4532 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 72V 1.1A-HD 40A MAX MF-RX110/72-0 Bourns 1: $456 14.140In Stock	Mfr. Part # MF-RX110/72-0 Mouser Part # 652-MF-RX110/72-0	Bourns	Resettable Fuses - PPTC 72V 1.1A-HD 40A MAX Learn More about Bourns multifuse	Datasheet	14.140In Stock	$456 $390 $343 $312 View $284 $262 $242 $201	Min.: 1 Mult.: 1	MF-RX/72	PCB Mount	Radial	1.1 A	72 VDC	2.2 A	40 A	250 mOhms		- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC 72V 1.1A-HD 40A MAX MF-RX110/72-2 Bourns 1: $490 13.007In Stock	Mfr. Part # MF-RX110/72-2 Mouser Part # 652-MF-RX110/72-2	Bourns	Resettable Fuses - PPTC 72V 1.1A-HD 40A MAX Learn More about Bourns multifuse	Datasheet	13.007In Stock	Cut Tape $490 $444 $369 $341 Reel $219 View $306 $283 $248 $206	Min.: 1 Mult.: 1 : 3.000	MF-RX/72	PCB Mount	Radial	1.1 A	72 VDC	2.2 A	40 A	250 mOhms		- 40 C	+ 85 C	5.1 mm		Reel, Cut Tape
Resettable Fuses - PPTC 30V 1.85A-HD 40A MAX MF-R185 Bourns 1: $524 12.616In Stock	Mfr. Part # MF-R185 Mouser Part # 652-MFR185	Bourns	Resettable Fuses - PPTC 30V 1.85A-HD 40A MAX Learn More about Bourns mf r	Datasheet	12.616In Stock	$524 $477 $396 $366 View $329 $303 $280 $272 $231	Min.: 1 Mult.: 1	MF-R	PCB Mount	Radial	1.85 A	30 VDC	3.7 A	40 A	70 mOhms		- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC 30V 4A-HD 40A MAX MF-R400 Bourns 1: $592 8.053In Stock	Mfr. Part # MF-R400 Mouser Part # 652-MFR400	Bourns	Resettable Fuses - PPTC 30V 4A-HD 40A MAX Learn More about Bourns mf r	Datasheet	8.053In Stock	$592 $525 $448 $412 View $373 $344 $317 $262	Min.: 1 Mult.: 1	MF-R	PCB Mount	Radial	4 A	30 VDC	8 A	40 A	30 mOhms		- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC 0.10A 15V 0805 0805L010YR Littelfuse 1: $1.379 2.362In Stock 8.000Expected 12/24/2026	Mfr. Part # 0805L010YR Mouser Part # 576-0805L010	Littelfuse	Resettable Fuses - PPTC 0.10A 15V 0805 Learn More about Littelfuse 0805l ptc fuses	Datasheet	2.362In Stock 8.000Expected 12/24/2026	Cut Tape $1.379 Reel $1.379 MouseReel Available	Min.: 1 Mult.: 1 : 4.000	0805L	SMD/SMT	SMD/SMT	100 mA	15 VDC	300 mA	100 A	6 Ohms	0805 (2012 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 30V 1206 .160A POLYFUSE 1206L016WR Littelfuse 1: $604 45.605In Stock	Mfr. Part # 1206L016WR Mouser Part # 576-1206L016WR	Littelfuse	Resettable Fuses - PPTC 30V 1206 .160A POLYFUSE Learn More about Littelfuse 1206l poly fuse resettable ptcs	Datasheet	45.605In Stock	Cut Tape $604 $553 $461 $426 View Reel $261 $383 $353 $326 $261 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	1206L	SMD/SMT	SMD/SMT	160 mA	30 VDC	370 mA	100 A	4.5 Ohms	1206 (3216 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 15V 1206 .500A POLYFUSE 1206L050/15YR Littelfuse 1: $638 7.279In Stock 28.000Expected 12/24/2026	Mfr. Part # 1206L050/15YR Mouser Part # 576-1206L050/15YR	Littelfuse	Resettable Fuses - PPTC 15V 1206 .500A POLYFUSE Learn More about Littelfuse 1206l poly fuse resettable ptcs	Datasheet	7.279In Stock 28.000Expected 12/24/2026	Cut Tape $638 $533 $452 $409 View Reel $261 $371 $345 $321 $309 $261 MouseReel Available	Min.: 1 Mult.: 1 : 4.000	1206L	SMD/SMT	SMD/SMT	500 mA	15 VDC	1 A	100 A	750 mOhms	1206 (3216 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 0.10A 30V 1210 1210L010WR Littelfuse 1: $638 31.842In Stock	Mfr. Part # 1210L010WR Mouser Part # 576-1210L010	Littelfuse	Resettable Fuses - PPTC 0.10A 30V 1210 Learn More about Littelfuse 1210l pptc fuses	Datasheet	31.842In Stock	Cut Tape $638 $582 $483 $445 View Reel $273 $401 $370 $341 $273 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	1210L	PCB Mount	SMD/SMT	100 mA	30 VDC	300 mA	10 A	15 Ohms	1210 (3225 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel