Resettable Fuses - PPTC – Mouser United Kingdom

.hide-partial { max-height: none; } .show-more { display: none; }

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.

Learn More

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 122

Applied Filters:

Manufacturer

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

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

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	Package/Case	Minimum Operating Temperature	Maximum Operating Temperature	Lead Spacing	Qualification	Packaging
Resettable Fuses - PPTC 0.30A 60V 2920 2920L030DR Littelfuse 1: £0.533 17,657In Stock	Mfr. Part No. 2920L030DR Mouser Part No 576-2920L030	Littelfuse	Resettable Fuses - PPTC 0.30A 60V 2920 Learn More about Littelfuse 2920l polyswitch resettable fuses	Datasheet	17,657In Stock	Cut Tape £0.533 £0.485 £0.404 £0.349 View Reel £0.237 £0.32 £0.30 £0.237 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	2920L	SMD/SMT	SMD/SMT	300 mA	60 VDC	600 mA	10 A	4.8 Ohms	2920 (7450 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC PTC 15V 2920 3A 2920L300/15DR Littelfuse 1: £0.721 16,651In Stock	Mfr. Part No. 2920L300/15DR Mouser Part No 576-2920L300/15DR	Littelfuse	Resettable Fuses - PPTC PTC 15V 2920 3A Learn More about Littelfuse 2920l polyswitch resettable fuses	Datasheet	16,651In Stock	Cut Tape £0.721 £0.662 £0.549 £0.501 Reel £0.372 View £0.45 £0.416 £0.368 £0.363 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	2920L	SMD/SMT	SMD/SMT	3 A	15 VDC	5 A	40 A	48 mOhms	2920 (7450 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 1.35A 60V RADIAL 60R135XF Littelfuse 1: £0.766 6,294In Stock	Mfr. Part No. 60R135XF Mouser Part No 576-60R135	Littelfuse	Resettable Fuses - PPTC 1.35A 60V RADIAL Learn More about Littelfuse radial leaded pptcs	Datasheet	6,294In Stock	£0.766 £0.703 £0.569 £0.497 View £0.457 £0.437 £0.416	Min.: 1 Mult.: 1	60R	PCB Mount	Radial	1.35 A	60 VDC	2.7 A	40 A	300 mOhms		- 40 C	+ 85 C	5.1 mm		Bulk
Resettable Fuses - PPTC 10A 32V High Temp AEC-Q200 AHEF1000 Littelfuse 1: £1.47 3,412In Stock	Mfr. Part No. AHEF1000 Mouser Part No 650-AHEF1000	Littelfuse	Resettable Fuses - PPTC 10A 32V High Temp AEC-Q200 Learn More about Littelfuse radial leaded pptcs	Datasheet	3,412In Stock	£1.47 £1.35 £1.12 £1.04 View £0.925 £0.849 £0.796	Min.: 1 Mult.: 1	AHEF	PCB Mount	Radial	10 A	32 VDC	20 A	100 A	16 mOhms		- 40 C	+ 85 C	10.9 mm	AEC-Q100	Bulk
Resettable Fuses - PPTC .16A 240VAC 20/2A Imax LVR016S Littelfuse 1: £0.511 9,836In Stock	Mfr. Part No. LVR016S Mouser Part No 650-LVR016S	Littelfuse	Resettable Fuses - PPTC .16A 240VAC 20/2A Imax Learn More about Littelfuse TE LVR Fuse	Datasheet	9,836In Stock	£0.511 £0.467 £0.388 £0.358 View £0.322 £0.297 £0.273 £0.265	Min.: 1 Mult.: 1	LVR	PCB Mount	Radial	160 mA	120 VAC/VDC	370 mA	20 A	7.8 Ohms		- 40 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC .1A 30V Micro SMD AEC-Q200 MICROASMD010F-2 Littelfuse 1: £0.488 12,192In Stock	Mfr. Part No. MICROASMD010F-2 Mouser Part No 650-MICROASMD010F-2	Littelfuse	Resettable Fuses - PPTC .1A 30V Micro SMD AEC-Q200 Learn More about Littelfuse polyswitch automotive pptcs	Datasheet	12,192In Stock	Cut Tape £0.488 £0.446 £0.372 £0.335 View Reel £0.201 £0.302 £0.278 £0.257 £0.239 £0.201 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	microASMD	SMD/SMT	SMD/SMT	100 mA	30 VDC	250 mA	10 A	15 Ohms	1210 (3225 metric)	- 40 C	+ 85 C		AEC-Q100	Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 1.10A 16V 100A Imax MINISMDC110F/16-2 Littelfuse 1: £0.436 9,312In Stock	Mfr. Part No. MINISMDC110F/16-2 Mouser Part No 650-MINIC110F/16-2	Littelfuse	Resettable Fuses - PPTC 1.10A 16V 100A Imax Learn More about Littelfuse polyswitch smd ptcs	Datasheet	9,312In Stock	Cut Tape £0.436 £0.375 £0.33 £0.305 View Reel £0.222 £0.274 £0.233 £0.222 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	miniSMD	PCB Mount	SMD/SMT						1812 (4532 metric)		+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 24V 750MA-HD 40A MAX MINISMDC075F/24-2 Littelfuse 1: £0.511 8,402In Stock	Mfr. Part No. MINISMDC075F/24-2 Mouser Part No 650-MINISMDC075F/24	Littelfuse	Resettable Fuses - PPTC 24V 750MA-HD 40A MAX Learn More about Littelfuse polyswitch smd ptcs	Datasheet	8,402In Stock	Cut Tape £0.511 £0.467 £0.388 £0.357 View Reel £0.224 £0.322 £0.288 £0.224 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	miniSMD	SMD/SMT	SMD/SMT	750 mA	24 VDC	1.5 A	40 A	290 mOhms	1812 (4532 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 24V 1.1A-HD 40A MAX MINISMDC110F/24-2 Littelfuse 1: £0.488 39,462In Stock 57,000Expected 02/02/2027	Mfr. Part No. MINISMDC110F/24-2 Mouser Part No 650-MINISMDC110F/24	Littelfuse	Resettable Fuses - PPTC 24V 1.1A-HD 40A MAX Learn More about Littelfuse polyswitch smd ptcs	Datasheet	39,462In Stock 57,000Expected 02/02/2027	Cut Tape £0.488 £0.439 £0.37 £0.338 Reel £0.232 View £0.303 £0.277 £0.229 £0.226 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	miniSMD	SMD/SMT	SMD/SMT	1.1 A	24 VDC	2.2 A	20 A	180 mOhms	1812 (4532 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .35A RESETTABLE SMD FUSE NANOSMDC035F-2 Littelfuse 1: £0.405 43,090In Stock	Mfr. Part No. NANOSMDC035F-2 Mouser Part No 650-NANOSMDC035F-2	Littelfuse	Resettable Fuses - PPTC .35A RESETTABLE SMD FUSE Learn More about Littelfuse polyswitch smd ptcs	Datasheet	43,090In Stock	Cut Tape £0.405 £0.37 £0.305 £0.284 View Reel £0.163 £0.255 £0.236 £0.217 £0.163 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	nanoSMD	SMD/SMT	SMD/SMT	350 mA	16 VDC	750 mA	20 A	1.35 Ohms	1206 (3216 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC RGEF900 RGEF900 Littelfuse 1: £0.623 6,000In Stock	Mfr. Part No. RGEF900 Mouser Part No 650-RGEF900	Littelfuse	Resettable Fuses - PPTC RGEF900 Learn More about Littelfuse radial leaded pptcs	Datasheet	6,000In Stock	£0.623 £0.572 £0.475 £0.438 View £0.395 £0.391	Min.: 1 Mult.: 1	RGEF	PCB Mount	Radial	9 A	16 VDC	15.3 A	100 A	13.5 mOhms		- 40 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC 1.6A 30V 100A Imax RUEF160 Littelfuse 1: £0.346 13,309In Stock	Mfr. Part No. RUEF160 Mouser Part No 650-RUEF160	Littelfuse	Resettable Fuses - PPTC 1.6A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	13,309In Stock	£0.346 £0.318 £0.265 £0.244 View £0.219 £0.205	Min.: 1 Mult.: 1	RUEF	PCB Mount	Radial	1.6 A	30 VDC	3.2 A	100 A	110 mOhms		- 40 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC 3A 30V 100A Imax RUEF300 Littelfuse 1: £0.45 24,599In Stock 29,500Expected 06/01/2027	Mfr. Part No. RUEF300 Mouser Part No 650-RUEF300	Littelfuse	Resettable Fuses - PPTC 3A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	24,599In Stock 29,500Expected 06/01/2027	£0.45 £0.362 £0.314 £0.255 View £0.25 £0.216 £0.203 £0.198 £0.197	Min.: 1 Mult.: 1	RUEF	PCB Mount	Radial	3 A	30 VDC	6 A	100 A	80 mOhms		- 40 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC 3A 30V 100A Imax RUEF300-2 Littelfuse 1: £0.48 8,222In Stock	Mfr. Part No. RUEF300-2 Mouser Part No 650-RUEF300-2	Littelfuse	Resettable Fuses - PPTC 3A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	8,222In Stock	Cut Tape £0.48 £0.443 £0.368 £0.339 View Reel £0.211 £0.305 £0.281 £0.259 £0.211	Min.: 1 Mult.: 1 : 2,500	RUEF	PCB Mount	Radial	3 A	30 VDC	6 A	100 A	80 mOhms		- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC 4A 30V 100A Imax RUEF400 Littelfuse 1: £0.458 14,019In Stock	Mfr. Part No. RUEF400 Mouser Part No 650-RUEF400	Littelfuse	Resettable Fuses - PPTC 4A 30V 100A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	14,019In Stock	£0.458 £0.421 £0.349 £0.322 View £0.29 £0.263 £0.238 £0.237	Min.: 1 Mult.: 1	RUEF	PCB Mount	Radial	4 A	30 VDC	8 A	100 A	50 mOhms		- 40 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC Radial Lead .3A 72V 40A Imax RXEF030 Littelfuse 1: £0.308 51,983In Stock	Mfr. Part No. RXEF030 Mouser Part No 650-RXEF030	Littelfuse	Resettable Fuses - PPTC Radial Lead .3A 72V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	51,983In Stock	£0.308 £0.28 £0.234 £0.217 View £0.189 £0.175 £0.164 £0.16	Min.: 1 Mult.: 1	RXEF	PCB Mount	Radial	300 mA	72 VDC	600 mA	40 A	2.1 Ohms		- 40 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax RXEF050 Littelfuse 1: £0.33 30,200In Stock 44,000Expected 18/01/2027	Mfr. Part No. RXEF050 Mouser Part No 650-RXEF050	Littelfuse	Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	30,200In Stock 44,000Expected 18/01/2027	£0.33 £0.285 £0.241 £0.217 View £0.192 £0.179 £0.168 £0.162	Min.: 1 Mult.: 1	RXEF	PCB Mount	Radial	500 mA	72 VDC	1 A	40 A	1.17 Ohms		- 40 C	+ 85 C	5.8 mm		Bulk
Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax RXEF050-2 Littelfuse 1: £0.39 8,247In Stock	Mfr. Part No. RXEF050-2 Mouser Part No 650-RXEF050-2	Littelfuse	Resettable Fuses - PPTC Radial Lead .5A 72V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	8,247In Stock	Cut Tape £0.39 £0.356 £0.295 £0.272 View Reel £0.166 £0.244 £0.226 £0.209 £0.166	Min.: 1 Mult.: 1 : 3,000	RXEF	PCB Mount	Radial	500 mA	72 VDC	1 A	40 A	1.17 Ohms		- 40 C	+ 85 C	5.8 mm		Reel, Cut Tape
Resettable Fuses - PPTC Radial Lead 2.5A 72V 40A Imax RXEF250 Littelfuse 1: £0.608 30,269In Stock	Mfr. Part No. RXEF250 Mouser Part No 650-RXEF250	Littelfuse	Resettable Fuses - PPTC Radial Lead 2.5A 72V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	30,269In Stock	£0.608 £0.56 £0.44 £0.419 View £0.385 £0.355 £0.344 £0.335 £0.331	Min.: 1 Mult.: 1	RXEF	PCB Mount	Radial	2.5 A	72 VDC	5 A	40 A	130 mOhms		- 40 C	+ 85 C	10.9 mm		Bulk
Resettable Fuses - PPTC Radial Lead 3A 72V 40A Imax RXEF300 Littelfuse 1: £0.705 7,596In Stock 10,750Expected 02/03/2027	Mfr. Part No. RXEF300 Mouser Part No 650-RXEF300	Littelfuse	Resettable Fuses - PPTC Radial Lead 3A 72V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	7,596In Stock 10,750Expected 02/03/2027	£0.705 £0.629 £0.539 £0.497 View £0.447 £0.412 £0.399 £0.395 £0.389	Min.: 1 Mult.: 1	RXEF	PCB Mount	Radial	3 A	72 VDC	6 A	40 A	100 mOhms		- 40 C	+ 85 C	10.9 mm		Bulk
Resettable Fuses - PPTC Radial Lead 3.75A 72V 40A Imax RXEF375 Littelfuse 1: £0.882 14,943In Stock	Mfr. Part No. RXEF375 Mouser Part No 650-RXEF375	Littelfuse	Resettable Fuses - PPTC Radial Lead 3.75A 72V 40A Imax Learn More about Littelfuse radial leaded pptcs	Datasheet	14,943In Stock	£0.882 £0.811 £0.661 £0.612 View £0.557 £0.513 £0.497	Min.: 1 Mult.: 1	RXEF	PCB Mount	Radial	3.75 A	72 VDC	7.5 A	40 A	80 mOhms		- 40 C	+ 85 C	10.9 mm		Bulk
Resettable Fuses - PPTC .3A 60V 10A Imax SMD030F-2 Littelfuse 1: £0.405 42,202In Stock	Mfr. Part No. SMD030F-2 Mouser Part No 650-SMD030F-2	Littelfuse	Resettable Fuses - PPTC .3A 60V 10A Imax Learn More about Littelfuse polyswitch smd ptcs	Datasheet	42,202In Stock	Cut Tape £0.405 £0.375 £0.311 £0.287 View Reel £0.207 £0.258 £0.219 £0.207 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SMD	SMD/SMT	SMD/SMT	300 mA	60 VDC	600 mA	10 A	4.8 Ohms	2920 (7450 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC .75A 30V 40A Imax SMD075F-2 Littelfuse 1: £0.421 25,005In Stock	Mfr. Part No. SMD075F-2 Mouser Part No 650-SMD075F-2	Littelfuse	Resettable Fuses - PPTC .75A 30V 40A Imax Learn More about Littelfuse polyswitch smd ptcs	Datasheet	25,005In Stock	Cut Tape £0.421 £0.382 £0.318 £0.292 View Reel £0.207 £0.264 £0.223 £0.207 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SMD	SMD/SMT	SMD/SMT	750 mA	30 VDC	1.5 A	40 A	1 Ohms	2920 (7450 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC 15V 40A 0.05Ohms SMD300F/15-2 Littelfuse 1: £0.533 11,057In Stock	Mfr. Part No. SMD300F/15-2 Mouser Part No 650-SMD300F/15-2	Littelfuse	Resettable Fuses - PPTC 15V 40A 0.05Ohms Learn More about Littelfuse polyswitch smd ptcs	Datasheet	11,057In Stock	Cut Tape £0.533 £0.464 £0.405 £0.375 View Reel £0.278 £0.336 £0.286 £0.278 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SMD	SMD/SMT	SMD/SMT	3 A	15 VDC	6 A	40 A	50 mOhms	2920 (7450 metric)	- 40 C	+ 85 C			Reel, Cut Tape, MouseReel
Resettable Fuses - PPTC SRP175F SRP175F Littelfuse 1: £0.586 24,886In Stock	Mfr. Part No. SRP175F Mouser Part No 650-SRP175F	Littelfuse	Resettable Fuses - PPTC SRP175F Learn More about Littelfuse battery strap ptcs	Datasheet	24,886In Stock	£0.586 £0.454 £0.395 £0.354 View £0.333 £0.288 £0.287 £0.286 £0.255	Min.: 1 Mult.: 1	SRP	Strap Mount	SMD/SMT	1.75 A	15 VDC	3.8 A	100 A	120 mOhms		- 40 C	+ 85 C			Bulk