Resettable Fuses - PPTC – Mouser Ireland

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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 (EUR) 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 60V .400A RADIAL LEADS 60R040XPR Littelfuse 1: €0.611 2,764In Stock	Mfr. Part No. 60R040XPR Mouser Part No 576-60R040XPR	Littelfuse	Resettable Fuses - PPTC 60V .400A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	2,764In Stock	€0.611 €0.534 €0.459 €0.411 Reel €0.259 View €0.385 €0.328 €0.253	Min.: 1 Mult.: 1 : 2,000	60R	PCB Mount	Radial	400 mA	60 VDC	800 mA	40 A	1.29 Ohms		- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC 60V POLYFUSE .400A RADIAL LEADS 60R040XU Littelfuse 1: €0.43 527In Stock 3,500Expected 04/01/2027	Mfr. Part No. 60R040XU Mouser Part No 576-60R040XU	Littelfuse	Resettable Fuses - PPTC 60V POLYFUSE .400A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	527In Stock 3,500Expected 04/01/2027	€0.43 €0.392 €0.326 €0.301 View €0.27 €0.249 €0.23 €0.224	Min.: 1 Mult.: 1	60R	PCB Mount	Radial	400 mA	60 VDC	800 mA	40 A	1.29 Ohms		- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC 60V .500A RADIAL LEADS 60R050XPR Littelfuse 1: €0.628 2,315In Stock	Mfr. Part No. 60R050XPR Mouser Part No 576-60R050XPR	Littelfuse	Resettable Fuses - PPTC 60V .500A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	2,315In Stock	€0.628 €0.54 €0.467 €0.417 View Reel €0.278 €0.387 €0.337 €0.278	Min.: 1 Mult.: 1 : 2,000	60R	PCB Mount	Radial	500 mA	60 VDC	1 A	40 A	1.17 Ohms		- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC 60V POLYFUSE .500A RADIAL LEADS 60R050XU Littelfuse 1: €0.507 1,029In Stock 2,000Expected 28/12/2026	Mfr. Part No. 60R050XU Mouser Part No 576-60R050XU	Littelfuse	Resettable Fuses - PPTC 60V POLYFUSE .500A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	1,029In Stock 2,000Expected 28/12/2026	€0.507 €0.463 €0.384 €0.347 View €0.325 €0.30 €0.289 €0.27 €0.259	Min.: 1 Mult.: 1	60R	PCB Mount	Radial	500 mA	60 VDC	1 A	40 A	1.17 Ohms		- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC 60V 1.10A RADIAL LEADS 60R110XMR Littelfuse 1: €1.01 2,321In Stock	Mfr. Part No. 60R110XMR Mouser Part No 576-60R110XMR	Littelfuse	Resettable Fuses - PPTC 60V 1.10A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	2,321In Stock	€1.01 €0.903 €0.761 €0.703 View Reel €0.491 €0.635 €0.586 €0.491	Min.: 1 Mult.: 1 : 1,000	60R	PCB Mount	Radial	1.1 A	60 VDC	2.2 A	40 A	380 mOhms		- 40 C	+ 85 C	5.1 mm		Ammo Pack
Resettable Fuses - PPTC 60V POLYFUSE 1.10A RADIAL LEADS 60R110XU Littelfuse 1: €0.929 2,289In Stock	Mfr. Part No. 60R110XU Mouser Part No 576-60R110XU	Littelfuse	Resettable Fuses - PPTC 60V POLYFUSE 1.10A RADIAL LEADS Learn More about Littelfuse radial leaded pptcs	Datasheet	2,289In Stock	€0.929 €0.857 €0.651 €0.597 View €0.55 €0.529 €0.50 €0.481 €0.478	Min.: 1 Mult.: 1	60R	PCB Mount	Radial	1.1 A	60 VDC	2.2 A	40 A	380 mOhms		- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC .9A 30V SMD AEC-Q200 ASMD100F-2 Littelfuse 1: €0.697 813In Stock 8,000Expected 07/01/2027	Mfr. Part No. ASMD100F-2 Mouser Part No 650-ASMD100F-2	Littelfuse	Resettable Fuses - PPTC .9A 30V SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	813In Stock 8,000Expected 07/01/2027	Cut Tape €0.697 €0.642 €0.534 €0.493 View Reel €0.361 €0.443 €0.377 €0.361 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ASMD	SMD/SMT	SMD/SMT	900 mA	30 VDC	2.16 A	40 A	480 mOhms	2920 (7450 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .12A 240VAC 20/1.2A Imax LVR012K Littelfuse 1: €0.619 1,441In Stock	Mfr. Part No. LVR012K Mouser Part No 650-LVR012K	Littelfuse	Resettable Fuses - PPTC .12A 240VAC 20/1.2A Imax Learn More about Littelfuse TE LVR Fuse	Datasheet	1,441In Stock	€0.619 €0.567 €0.471 €0.434 View €0.39 €0.36 €0.358	Min.: 1 Mult.: 1	LVR	PCB Mount	Radial	120 mA	240 VAC/VDC	300 mA	1.2 A	12 Ohms		- 40 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC .12A 240VAC 20/1.2A Imax LVR012S-2 Littelfuse 1: €0.714 3,702In Stock	Mfr. Part No. LVR012S-2 Mouser Part No 650-LVR012S-2	Littelfuse	Resettable Fuses - PPTC .12A 240VAC 20/1.2A Imax Learn More about Littelfuse TE LVR Fuse	Datasheet	3,702In Stock	Cut Tape €0.714 €0.653 €0.542 €0.50 View Reel €0.319 €0.45 €0.382 €0.319	Min.: 1 Mult.: 1 : 2,000	LVR	PCB Mount	Radial	120 mA	120 VAC/VDC	300 mA	20 A	12 Ohms		- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC .25A 240VAC 20/3.5A Imax LVR025S Littelfuse 1: €0.611 3,408In Stock	Mfr. Part No. LVR025S Mouser Part No 650-LVR025S	Littelfuse	Resettable Fuses - PPTC .25A 240VAC 20/3.5A Imax Learn More about Littelfuse TE LVR Fuse	Datasheet	3,408In Stock	€0.611 €0.559 €0.464 €0.428 View €0.385 €0.367	Min.: 1 Mult.: 1	LVR	PCB Mount	Radial	250 mA	120 VAC/VDC	560 mA	20 A	3.8 Ohms		- 20 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC .33A 240VAC 20/4.5A Imax LVR033S Littelfuse 1: €0.662 592In Stock 9,000On Order	Mfr. Part No. LVR033S Mouser Part No 650-LVR033S	Littelfuse	Resettable Fuses - PPTC .33A 240VAC 20/4.5A Imax Learn More about Littelfuse TE LVR Fuse	Datasheet	592In Stock 9,000On Order On Order Ship Dates Mfr. No: LVR033S Stock: 592 Can Dispatch Immediately On Order: 4,000 Expected 15/12/2026 5,000 Expected 06/01/2027 Factory Lead Time: 17 Weeks	€0.662 €0.607 €0.504 €0.465 View €0.418 €0.386 €0.385 €0.355 €0.349	Min.: 1 Mult.: 1	LVR	PCB Mount	Radial	330 mA	120 VAC/VDC	740 mA	20 A	2.6 Ohms		- 40 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC .05A 30V Micro SMD AEC-Q200 MICROASMD005F-2 Littelfuse 1: €0.525 4,956In Stock	Mfr. Part No. MICROASMD005F-2 Mouser Part No 650-MICROASMD005F-2	Littelfuse	Resettable Fuses - PPTC .05A 30V Micro SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	4,956In Stock	Cut Tape €0.525 €0.451 €0.402 €0.356 View Reel €0.23 €0.311 €0.289 €0.268 €0.258 €0.23 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	microASMD	SMD/SMT	SMD/SMT	50 mA	30 VDC	150 mA	10 A	50 Ohms	1210 (3225 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .14A 60V Mini SMD AEC-Q200 MINIASMDC014F-2 Littelfuse 1: €0.482 3,249In Stock	Mfr. Part No. MINIASMDC014F-2 Mouser Part No 650-MINIASMDC014F-2	Littelfuse	Resettable Fuses - PPTC .14A 60V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	3,249In Stock	Cut Tape €0.482 €0.442 €0.367 €0.339 View Reel €0.208 €0.304 €0.259 €0.208 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	miniASMD	SMD/SMT	SMD/SMT	140 mA	60 VDC	280 mA	10 A	6 Ohms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .2A 30V Mini SMD AEC-Q200 MINIASMDC020F-2 Littelfuse 1: €0.482 4,665In Stock	Mfr. Part No. MINIASMDC020F-2 Mouser Part No 650-MINIASMDC020F-2	Littelfuse	Resettable Fuses - PPTC .2A 30V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	4,665In Stock	Cut Tape €0.482 €0.442 €0.367 €0.339 Reel €0.259 View €0.304 €0.28 €0.225 €0.216 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	miniASMD	SMD/SMT	SMD/SMT	200 mA	30 VDC	400 mA	10 A	3.3 Ohms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .3A 30V Mini SMD AEC-Q200 MINIASMDC030F-2 Littelfuse 1: €0.507 391In Stock 64,000On Order	Mfr. Part No. MINIASMDC030F-2 Mouser Part No 650-MINIASMDC030F-2	Littelfuse	Resettable Fuses - PPTC .3A 30V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	391In Stock 64,000On Order On Order Ship Dates Mfr. No: MINIASMDC030F-2 Stock: 391 Can Dispatch Immediately On Order: 16,000 Expected 06/01/2027 48,000 Expected 01/02/2027 Factory Lead Time: 13 Weeks	Cut Tape €0.507 €0.469 €0.389 €0.353 View Reel €0.208 €0.317 €0.274 €0.208 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	miniASMD	SMD/SMT	SMD/SMT	300 mA	30 VDC	600 mA	40 A	1.75 Ohms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 1.1A 24V Mini SMD AEC-Q200 MINIASMDC110F/24-2 Littelfuse 1: €0.473 2,834In Stock	Mfr. Part No. MINIASMDC110F/24-2 Mouser Part No 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 €0.473 €0.435 €0.381 €0.354 Reel €0.255 View €0.329 €0.309 €0.249 €0.247 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 1.25A 16V Mini SMD AEC-Q200 MINIASMDC125F/16-2 Littelfuse 1: €0.525 1,729In Stock	Mfr. Part No. MINIASMDC125F/16-2 Mouser Part No 650-MINIASMDC125F/16	Littelfuse	Resettable Fuses - PPTC 1.25A 16V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	1,729In Stock	Cut Tape €0.525 €0.436 €0.366 €0.328 Reel €0.231 View €0.294 €0.263 €0.23 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	miniASMD	SMD/SMT	SMD/SMT	1.25 A	16 VDC	2.5 A	100 A	140 mOhms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 1.5A 16V Mini SMD AEC-Q200 MINIASMDC150F/16-2 Littelfuse 1: €0.482 915In Stock	Mfr. Part No. MINIASMDC150F/16-2 Mouser Part No 650-MINIASMDC150F/16	Littelfuse	Resettable Fuses - PPTC 1.5A 16V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	915In Stock	Cut Tape €0.482 €0.438 €0.364 €0.335 Reel €0.284 View €0.302 €0.244 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	miniASMD	SMD/SMT	SMD/SMT	1.5 A	16 VDC	2.8 A	100 A	110 mOhms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 1.5A 24V Mini SMD AEC-Q200 MINIASMDC150F/24-2 Littelfuse 1: €0.705 902In Stock	Mfr. Part No. MINIASMDC150F/24-2 Mouser Part No 650-MINIASMDC150F/24	Littelfuse	Resettable Fuses - PPTC 1.5A 24V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	902In Stock	Cut Tape €0.705 €0.646 €0.536 €0.495 Reel €0.391 View €0.445 €0.41 €0.316 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	miniASMD	SMD/SMT	SMD/SMT	1.5 A	24 VDC	3 A	20 A	120 mOhms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 2.6A 16V Mini SMD AEC-Q200 MINIASMDC260F/16-2 Littelfuse 1: €0.645 2,016In Stock	Mfr. Part No. MINIASMDC260F/16-2 Mouser Part No 650-MINIASMDC260F/16	Littelfuse	Resettable Fuses - PPTC 2.6A 16V Mini SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	2,016In Stock	Cut Tape €0.645 €0.584 €0.492 €0.453 Reel €0.299 View €0.408 €0.376 €0.287 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	miniASMD	SMD/SMT	SMD/SMT	2.6 A	16 VDC	5 A	100 A	50 mOhms	1812 (4532 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .12A 48V Nano SMD AEC-Q200 NANOASMDC012F-2 Littelfuse 1: €0.464 4,462In Stock 9,000Expected 24/12/2026	Mfr. Part No. NANOASMDC012F-2 Mouser Part No 650-NANOASMDC012F-2	Littelfuse	Resettable Fuses - PPTC .12A 48V Nano SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	4,462In Stock 9,000Expected 24/12/2026	Cut Tape €0.464 €0.425 €0.355 €0.328 View Reel €0.201 €0.295 €0.272 €0.251 €0.201 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	nanoASMDC	SMD/SMT	SMD/SMT	120 mA	48 VDC	390 mA	10 A	6.5 Ohms	1206 (3216 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .16A 48V Nano SMD AEC-Q200 NANOASMDC016F-2 Littelfuse 1: €0.499 2,265In Stock 6,000Expected 28/12/2026	Mfr. Part No. NANOASMDC016F-2 Mouser Part No 650-NANOASMDC016F-2	Littelfuse	Resettable Fuses - PPTC .16A 48V Nano SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	2,265In Stock 6,000Expected 28/12/2026	Cut Tape €0.499 €0.453 €0.376 €0.341 View Reel €0.201 €0.306 €0.282 €0.261 €0.201 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	nanoASMDC	SMD/SMT	SMD/SMT	160 mA	48 VDC	450 mA	10 A	5 Ohms	1206 (3216 metric)	- 40 C	+ 85 C		AEC-Q200	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .2A 24V Nano SMD AEC-Q200 NANOASMDC020F-2 Littelfuse 1: €0.464 6,116In Stock	Mfr. Part No. NANOASMDC020F-2 Mouser Part No 650-NANOASMDC020F-2	Littelfuse	Resettable Fuses - PPTC .2A 24V Nano SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	6,116In Stock	Cut Tape €0.464 €0.403 €0.341 €0.309 View Reel €0.201 €0.28 €0.26 €0.242 €0.201 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	nanoASMDC	SMD/SMT	SMD/SMT	200 mA	24 VDC	420 mA	100 A	3.1 Ohms	1206 (3216 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .35A 16V Nano SMD AEC-Q200 NANOASMDC035F-2 Littelfuse 1: €0.525 5,275In Stock	Mfr. Part No. NANOASMDC035F-2 Mouser Part No 650-NANOASMDC035F-2	Littelfuse	Resettable Fuses - PPTC .35A 16V Nano SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	5,275In Stock	Cut Tape €0.525 €0.483 €0.402 €0.327 Reel €0.255 View €0.294 €0.272 €0.255 €0.238 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	nanoASMDC	SMD/SMT	SMD/SMT	350 mA	16 VDC	750 mA	20 A	1.35 Ohms	1206 (3216 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC RGEF1200 RGEF1200 Littelfuse 1: €0.903 979In Stock	Mfr. Part No. RGEF1200 Mouser Part No 650-RGEF1200	Littelfuse	Resettable Fuses - PPTC RGEF1200 Learn More about Littelfuse radial leaded pptcs	Datasheet	979In Stock	€0.903 €0.832 €0.691 €0.638 View €0.573 €0.528 €0.487 €0.464	Min.: 1 Mult.: 1	RGEF	PCB Mount	Radial	12 A	16 VDC	20.4 A	100 A	8.6 mOhms		- 40 C	+ 85 C	10.9 mm		Bulk