Resettable Fuses - PPTC – Mouser United Kingdom

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

Battery Strap PolySwitch PTCs

Littelfuse Battery Strap PolySwitch Resettable Polymeric Positive Temperature Coefficient (PPTC) Devices provide reliable, non-cycling protection against overcharging and short circuit events for rechargeable battery cells where resettable protection is desired. The axial leaded products offer several material platforms to help protect battery applications. Each material platform offers different performance characteristics that allow the engineer greater design flexibility. Littelfuse PolySwitch devices for battery protection include the SRP, LR4, VTP, VLP, VLR series, disc, and other special application strap devices.

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

Results: 30

Applied Filters:

Series

Mounting Style

Termination Style

Hold Current

Maximum Voltage

Trip Current

Current Rating - Max

Resistance

Minimum Operating Temperature

Maximum Operating Temperature

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	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
Resettable Fuses - PPTC 1.75A 16V 100A Imax VTP175F Littelfuse 1: £0.882 3,551In Stock	Mfr. Part No. VTP175F Mouser Part No 650-VTP175F	Littelfuse	Resettable Fuses - PPTC 1.75A 16V 100A Imax Learn More about Littelfuse vtp pptcs	Datasheet	3,551In Stock	£0.882 £0.673 £0.557 £0.512 View £0.461 £0.425 £0.391 £0.356 £0.323	Min.: 1 Mult.: 1	VTP	Strap Mount	SMD/SMT	1.75 A	16 VDC	3.6 A	100 A	102 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 1.7A 16V 100A Imax VTP170F Littelfuse 1: £0.698 13,590In Stock	Mfr. Part No. VTP170F Mouser Part No 650-VTP170F	Littelfuse	Resettable Fuses - PPTC 1.7A 16V 100A Imax Learn More about Littelfuse vtp pptcs	Datasheet	13,590In Stock	£0.698 £0.645 £0.535 £0.494 View £0.443 £0.419 £0.409 £0.405 £0.344	Min.: 1 Mult.: 1	VTP	Strap Mount	Axial	1.7 A	16 V	3.4 A	100 A	52 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 1.7A 16V 100A Imax VTP170XSF Littelfuse 1: £0.796 26In Stock	Mfr. Part No. VTP170XSF Mouser Part No 650-VTP170XSF	Littelfuse	Resettable Fuses - PPTC 1.7A 16V 100A Imax Learn More about Littelfuse vtp pptcs	Datasheet	26In Stock	£0.796 £0.732 £0.506 £0.467 View £0.42 £0.388 £0.356	Min.: 1 Mult.: 1	VTP	Strap Mount	SMD/SMT	1.7 A	16 VDC	3.4 A	100 A	52 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 2.6A 15V 100A Imax LR4-260F Littelfuse 1: £0.623 46,072In Stock 20,000Expected 02/12/2026	Mfr. Part No. LR4-260F Mouser Part No 650-LR4-260F	Littelfuse	Resettable Fuses - PPTC 2.6A 15V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	46,072In Stock 20,000Expected 02/12/2026	£0.623 £0.572 £0.475 £0.438 View £0.395 £0.363 £0.357	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	2.6 A	15 VDC	5.8 A	100 A	42 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 4.2A 30V SRP420F Littelfuse 1: £0.728 42,916In Stock	Mfr. Part No. SRP420F Mouser Part No 650-SRP420F	Littelfuse	Resettable Fuses - PPTC 4.2A 30V Learn More about Littelfuse battery strap ptcs	Datasheet	42,916In Stock	£0.728 £0.673 £0.568 £0.535 £0.523	Min.: 1 Mult.: 1	SRP	Strap Mount	SMD/SMT	4.2 A	30 VDC	7.6 A	100 A	40 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 1.75A 12V 100A Imax VLR175F Littelfuse 1: £0.623 38,473In Stock	Mfr. Part No. VLR175F Mouser Part No 650-VLR175F	Littelfuse	Resettable Fuses - PPTC 1.75A 12V 100A Imax Learn More about Littelfuse battery strap ptcs	Datasheet	38,473In Stock	£0.623 £0.572 £0.475 £0.438 View £0.395 £0.363 £0.362 £0.332	Min.: 1 Mult.: 1	VLR	Strap Mount	SMD/SMT	1.75 A	12 VDC	4.2 A	100 A	62 mOhms	- 40 C	+ 70 C	Bulk
Resettable Fuses - PPTC LR4-1300SSF LR4-1300SSF Littelfuse 1: £1.58 3,917In Stock	Mfr. Part No. LR4-1300SSF Mouser Part No 650-LR4-1300SSF	Littelfuse	Resettable Fuses - PPTC LR4-1300SSF Learn More about Littelfuse lr4 pptcs	Datasheet	3,917In Stock	£1.58 £1.34 £1.16 £1.08 View £0.995 £0.925 £0.863	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	13 A	20 VDC	21.2 A	100 A	6.5 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC LR4-380F LR4-380F Littelfuse 1: £0.713 5,046In Stock	Mfr. Part No. LR4-380F Mouser Part No 650-LR4-380F	Littelfuse	Resettable Fuses - PPTC LR4-380F Learn More about Littelfuse lr4 pptcs	Datasheet	5,046In Stock	£0.713 £0.655 £0.574 £0.437 View £0.416 £0.39 £0.384	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	3.8 A	15 VDC	8.3 A	100 A	26 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 4.5A 20V 100A Imax LR4-450F Littelfuse 1: £0.803 7,848In Stock 3,000Expected 08/02/2027	Mfr. Part No. LR4-450F Mouser Part No 650-LR4-450F	Littelfuse	Resettable Fuses - PPTC 4.5A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	7,848In Stock 3,000Expected 08/02/2027	£0.803 £0.738 £0.608 £0.565 View £0.507 £0.469 £0.431 £0.411	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	4.5 A	20 VDC	8.9 A	100 A	20 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 5.5A 20V 100A Imax LR4-550F Littelfuse 1: £0.826 8,023In Stock 5,000Expected 31/12/2026	Mfr. Part No. LR4-550F Mouser Part No 650-LR4-550F	Littelfuse	Resettable Fuses - PPTC 5.5A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	8,023In Stock 5,000Expected 31/12/2026	£0.826 £0.759 £0.629 £0.58 View £0.521 £0.486 £0.485 £0.482	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	5.5 A	20 VDC	10.5 A	100 A	16 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 6A 20V 100A Imax LR4-600F Littelfuse 1: £0.908 4,120In Stock	Mfr. Part No. LR4-600F Mouser Part No 650-LR4-600F	Littelfuse	Resettable Fuses - PPTC 6A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	4,120In Stock	£0.908 £0.841 £0.663 £0.641 View £0.576 £0.532 £0.504	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	6 A	20 VDC	11.7 A	100 A	14 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 7.3A 20V 100A Imax LR4-730F Littelfuse 1: £1.06 13,598In Stock	Mfr. Part No. LR4-730F Mouser Part No 650-LR4-730F	Littelfuse	Resettable Fuses - PPTC 7.3A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	13,598In Stock	£1.06 £0.969 £0.811 £0.745 View £0.669 £0.617 £0.568 £0.557	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	7.3 A	20 VDC	14.1 A	100 A	12 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 9A 20V 100A Imax LR4-900F Littelfuse 1: £1.17 4,213In Stock	Mfr. Part No. LR4-900F Mouser Part No 650-LR4-900F	Littelfuse	Resettable Fuses - PPTC 9A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	4,213In Stock	£1.17 £1.08 £0.89 £0.826 View £0.739 £0.714 £0.684 £0.663	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	9 A	20 VDC	16.7 A	100 A	10 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC SRP175F SRP175F Littelfuse 1: £0.488 18,996In Stock 6,000Expected 29/10/2026	Mfr. Part No. SRP175F Mouser Part No 650-SRP175F	Littelfuse	Resettable Fuses - PPTC SRP175F Learn More about Littelfuse battery strap ptcs	Datasheet	18,996In Stock 6,000Expected 29/10/2026	£0.488 £0.446 £0.37 £0.341 View £0.307 £0.283 £0.255 £0.252	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
Resettable Fuses - PPTC SRP200F SRP200F Littelfuse 1: £0.698 34,590In Stock	Mfr. Part No. SRP200F Mouser Part No 650-SRP200F	Littelfuse	Resettable Fuses - PPTC SRP200F Learn More about Littelfuse battery strap ptcs	Datasheet	34,590In Stock	£0.698 £0.539 £0.447 £0.413 View £0.371 £0.342 £0.316 £0.278	Min.: 1 Mult.: 1	SRP	Strap Mount	SMD/SMT	2 A	30 VDC	4.4 A	100 A	100 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC SRP350F SRP350F Littelfuse 1: £0.578 29,904In Stock	Mfr. Part No. SRP350F Mouser Part No 650-SRP350F	Littelfuse	Resettable Fuses - PPTC SRP350F Learn More about Littelfuse battery strap ptcs	Datasheet	29,904In Stock	£0.578 £0.51 £0.44 £0.406 View £0.365 £0.36	Min.: 1 Mult.: 1	SRP	Strap Mount	SMD/SMT	3.5 A	30 VDC	6.3 A	100 A	50 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 2.1A 16V 100A Imax VTP210GF Littelfuse 1: £0.661 6,393In Stock	Mfr. Part No. VTP210GF Mouser Part No 650-VTP210GF	Littelfuse	Resettable Fuses - PPTC 2.1A 16V 100A Imax Learn More about Littelfuse vtp pptcs	Datasheet	6,393In Stock	£0.661 £0.607 £0.504 £0.464 View £0.417 £0.385 £0.354 £0.332	Min.: 1 Mult.: 1	VTP	Strap Mount	SMD/SMT	2.1 A	16 VDC	4.7 A	100 A	60 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC LR4-190F LR4-190F Littelfuse 1: £0.511 2,830In Stock	Mfr. Part No. LR4-190F Mouser Part No 650-LR4-190F	Littelfuse	Resettable Fuses - PPTC LR4-190F Learn More about Littelfuse lr4 pptcs	Datasheet	2,830In Stock	£0.511 £0.467 £0.388 £0.358 View £0.322 £0.297 £0.265	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	1.9 A	15 VDC	3.9 A	100 A	72 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 1.2A 15V 100A Imax SRP120F Littelfuse 1: £0.518 1,562In Stock	Mfr. Part No. SRP120F Mouser Part No 650-SRP120F	Littelfuse	Resettable Fuses - PPTC 1.2A 15V 100A Imax Learn More about Littelfuse battery strap ptcs	Datasheet	1,562In Stock	£0.518 £0.473 £0.393 £0.362 View £0.326 £0.30 £0.29	Min.: 1 Mult.: 1	SRP	Strap Mount	SMD/SMT	1.2 A	15 VDC	2.7 A	100 A	220 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 2.7A 16V 60A Imax VLP270F Littelfuse 1: £0.661 2,478In Stock	Mfr. Part No. VLP270F Mouser Part No 650-VLP270F	Littelfuse	Resettable Fuses - PPTC 2.7A 16V 60A Imax Learn More about Littelfuse battery strap ptcs	Datasheet	2,478In Stock	£0.661 £0.598 £0.475 £0.455 View £0.416 £0.385 £0.351 £0.346 £0.332	Min.: 1 Mult.: 1	VLP	Strap Mount	SMD/SMT	2.7 A	16 VDC	6.5 A	60 A	36 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 1.7A 12V 100A Imax VLR170F Littelfuse 1: £0.623 1,715In Stock	Mfr. Part No. VLR170F Mouser Part No 650-VLR170F	Littelfuse	Resettable Fuses - PPTC 1.7A 12V 100A Imax Learn More about Littelfuse battery strap ptcs	Datasheet	1,715In Stock	£0.623 £0.572 £0.475 £0.438 View £0.395 £0.363 £0.334 £0.332	Min.: 1 Mult.: 1	VLR	Strap Mount	SMD/SMT	1.7 A	12 VDC	4.1 A	100 A	64 mOhms	- 40 C	+ 70 C	Bulk
Resettable Fuses - PPTC 1.1A 16V 100A Imax VTP110F Littelfuse 1: £0.511 894In Stock	Mfr. Part No. VTP110F Mouser Part No 650-VTP110F	Littelfuse	Resettable Fuses - PPTC 1.1A 16V 100A Imax Learn More about Littelfuse vtp pptcs	Datasheet	894In Stock	£0.511 £0.467 £0.388 £0.358 View £0.322 £0.297 £0.273 £0.265	Min.: 1 Mult.: 1	VTP	Strap Mount	SMD/SMT	1.1 A	16 VDC	2.7 A	100 A	140 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC 2.1A 16V 100A Imax VTP210SF Littelfuse 1: £0.623 1,500In Stock	Mfr. Part No. VTP210SF Mouser Part No 650-VTP210SF	Littelfuse	Resettable Fuses - PPTC 2.1A 16V 100A Imax Learn More about Littelfuse vtp pptcs	Datasheet	1,500In Stock	£0.623 £0.572 £0.475 £0.438 View £0.395 £0.363 £0.334	Min.: 1 Mult.: 1	VTP	Strap Mount	SMD/SMT	2.1 A	16 VDC	4.7 A	100 A	60 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC LR4-380XF LR4-380XF Littelfuse 1: £0.759 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. LR4-380XF Mouser Part No 650-LR4-380XF	Littelfuse	Resettable Fuses - PPTC LR4-380XF Learn More about Littelfuse lr4 pptcs	Datasheet	Non-Stocked Lead-Time 17 Weeks	£0.759 £0.695 £0.576 £0.532 View £0.478 £0.441 £0.405 £0.384	Min.: 1 Mult.: 1	LR4	Strap Mount	SMD/SMT	3.8 A	15 VDC	8.3 A	100 A	26 mOhms	- 40 C	+ 85 C	Bulk
Resettable Fuses - PPTC LR4-600XF LR4-600XF Littelfuse 10,000: £0.543 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. LR4-600XF Mouser Part No 650-LR4-600XF	Littelfuse	Resettable Fuses - PPTC LR4-600XF Learn More about Littelfuse lr4 pptcs	Datasheet	Non-Stocked Lead-Time 17 Weeks	£0.543	Min.: 10,000 Mult.: 1,000	LR4	Strap Mount	SMD/SMT	6 A	20 VDC	11.7 A	100 A	14 mOhms	- 40 C	+ 85 C	Bulk