Resettable Fuses - PPTC – Mouser Switzerland

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LR4 15/20V PolySwitch Battery Strap PPTCs

Littelfuse LR4 15/20V PolySwitch Battery Strap Polymeric Positive Temperature Coefficient Resettable Fuses (PPTCs) serve changing battery technology and help protect battery applications. Littelfuse LR4 offers a 3.8A to 13A hold current and 100A maximum current along with 15 or 20V maximum voltage. These Polyswitch devices provide fast time-to-trip and serve a variety of devices, including smartphones, tablet PCs, mobile radios, digital cameras, and power tool charge lines.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) 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 2.6A 15V 100A Imax LR4-260F Littelfuse 1: 0.668 CHF 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	0.668 CHF 0.613 CHF 0.509 CHF 0.47 CHF View 0.423 CHF 0.389 CHF 0.383 CHF	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 LR4-1300SSF LR4-1300SSF Littelfuse 1: 1.69 CHF 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	1.69 CHF 1.43 CHF 1.24 CHF 1.16 CHF View 1.07 CHF 0.992 CHF 0.926 CHF	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: 0.765 CHF 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	0.765 CHF 0.702 CHF 0.616 CHF 0.468 CHF View 0.446 CHF 0.418 CHF 0.412 CHF	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: 0.861 CHF 7 848In Stock 3 000Expected 05/11/2026	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 05/11/2026	0.861 CHF 0.791 CHF 0.652 CHF 0.606 CHF View 0.544 CHF 0.503 CHF 0.462 CHF 0.441 CHF	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: 0.885 CHF 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	0.885 CHF 0.813 CHF 0.674 CHF 0.622 CHF View 0.559 CHF 0.521 CHF 0.52 CHF 0.517 CHF	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: 0.973 CHF 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	0.973 CHF 0.901 CHF 0.71 CHF 0.687 CHF View 0.618 CHF 0.57 CHF 0.54 CHF	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: 1.13 CHF 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	1.13 CHF 1.04 CHF 0.87 CHF 0.798 CHF View 0.717 CHF 0.662 CHF 0.609 CHF 0.597 CHF	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: 1.25 CHF 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	1.25 CHF 1.16 CHF 0.955 CHF 0.885 CHF View 0.793 CHF 0.766 CHF 0.734 CHF 0.71 CHF	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 LR4-190F LR4-190F Littelfuse 1: 0.548 CHF 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	0.548 CHF 0.501 CHF 0.417 CHF 0.384 CHF View 0.345 CHF 0.318 CHF 0.285 CHF	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 2.6A 15V 100A Imax LR4-260SF Littelfuse 1: 0.709 CHF 1 440In Stock	Mfr. Part No. LR4-260SF Mouser Part No 650-LR4-260SF	Littelfuse	Resettable Fuses - PPTC 2.6A 15V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	1 440In Stock	0.709 CHF 0.651 CHF 0.54 CHF 0.498 CHF View 0.447 CHF 0.413 CHF 0.38 CHF 0.356 CHF	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 LR4-380XF LR4-380XF Littelfuse 1: 0.813 CHF 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	0.813 CHF 0.745 CHF 0.618 CHF 0.57 CHF View 0.513 CHF 0.473 CHF 0.434 CHF 0.412 CHF	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: 0.582 CHF 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	0.582 CHF	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
Resettable Fuses - PPTC 20V 5.5A Ih 0.016ohm LR4-550RF Littelfuse Non-Stocked	Mfr. Part No. LR4-550RF Mouser Part No 650-LR4-550RF	Littelfuse	Resettable Fuses - PPTC 20V 5.5A Ih 0.016ohm Learn More about Littelfuse lr4 pptcs	Datasheet	Non-Stocked		Request a Quote	LR4	Strap Mount	Axial	5.5 A	20 V	10.5 A	100 A	16 mOhms	- 40 C	+ 85 C	Bulk

LR4 15/20V PolySwitch Battery Strap PPTCs

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