Resettable Fuses - PPTC – Mouser Canada

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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 (CAD) 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 9A 20V 100A Imax LR4-900F Littelfuse 1: $1.76 4,313In Stock	Mfr. Part # LR4-900F Mouser Part # 650-LR4-900F	Littelfuse	Resettable Fuses - PPTC 9A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	4,313In Stock	$1.76 $1.54 $1.34 $1.26 View $1.18 $1.15 $1.12	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 2.6A 15V 100A Imax LR4-260F Littelfuse 1: $1.20 34,072In Stock 32,000Expected 2027-02-01	Mfr. Part # LR4-260F Mouser Part # 650-LR4-260F	Littelfuse	Resettable Fuses - PPTC 2.6A 15V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	34,072In Stock 32,000Expected 2027-02-01	$1.20 $1.10 $0.912 $0.841 View $0.756 $0.697 $0.685	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: $3.63 4,042In Stock	Mfr. Part # LR4-1300SSF Mouser Part # 650-LR4-1300SSF	Littelfuse	Resettable Fuses - PPTC LR4-1300SSF Learn More about Littelfuse lr4 pptcs	Datasheet	4,042In Stock	$3.63 $2.82 $2.62 $2.26 View $1.97 $1.87 $1.73 $1.66	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: $1.37 5,046In Stock	Mfr. Part # LR4-380F Mouser Part # 650-LR4-380F	Littelfuse	Resettable Fuses - PPTC LR4-380F Learn More about Littelfuse lr4 pptcs	Datasheet	5,046In Stock	$1.37 $1.26 $1.10 $0.837 View $0.798 $0.749 $0.737	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: $1.54 3,915In Stock 4,000Expected 2027-01-26	Mfr. Part # LR4-450F Mouser Part # 650-LR4-450F	Littelfuse	Resettable Fuses - PPTC 4.5A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	3,915In Stock 4,000Expected 2027-01-26	$1.54 $1.41 $1.17 $1.08 View $0.973 $0.899 $0.827 $0.789	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: $1.58 16,528In Stock	Mfr. Part # LR4-550F Mouser Part # 650-LR4-550F	Littelfuse	Resettable Fuses - PPTC 5.5A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	16,528In Stock	$1.58 $1.45 $1.21 $1.11 View $0.999 $0.933 $0.932 $0.924	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: $1.74 5,426In Stock	Mfr. Part # LR4-600F Mouser Part # 650-LR4-600F	Littelfuse	Resettable Fuses - PPTC 6A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	5,426In Stock	$1.74 $1.61 $1.27 $1.23 View $1.11 $1.02 $0.966	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: $2.03 13,598In Stock	Mfr. Part # LR4-730F Mouser Part # 650-LR4-730F	Littelfuse	Resettable Fuses - PPTC 7.3A 20V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	13,598In Stock	$2.03 $1.86 $1.56 $1.43 View $1.28 $1.18 $1.09 $1.07	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 LR4-190F LR4-190F Littelfuse 1: $0.979 2,830In Stock	Mfr. Part # LR4-190F Mouser Part # 650-LR4-190F	Littelfuse	Resettable Fuses - PPTC LR4-190F Learn More about Littelfuse lr4 pptcs	Datasheet	2,830In Stock	$0.979 $0.896 $0.744 $0.687 View $0.618 $0.569 $0.51	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: $1.27 440In Stock 1,000Expected 2026-12-31	Mfr. Part # LR4-260SF Mouser Part # 650-LR4-260SF	Littelfuse	Resettable Fuses - PPTC 2.6A 15V 100A Imax Learn More about Littelfuse lr4 pptcs	Datasheet	440In Stock 1,000Expected 2026-12-31	$1.27 $1.16 $0.966 $0.891 View $0.801 $0.739 $0.68 $0.636	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: $1.45 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # LR4-380XF Mouser Part # 650-LR4-380XF	Littelfuse	Resettable Fuses - PPTC LR4-380XF Learn More about Littelfuse lr4 pptcs	Datasheet	Non-Stocked Lead-Time 17 Weeks	$1.45 $1.33 $1.11 $1.02 View $0.917 $0.845 $0.778 $0.737	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: $0.966 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # LR4-600XF Mouser Part # 650-LR4-600XF	Littelfuse	Resettable Fuses - PPTC LR4-600XF Learn More about Littelfuse lr4 pptcs	Datasheet	Non-Stocked Lead-Time 17 Weeks	$0.966	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

LR4 15/20V PolySwitch Battery Strap PPTCs

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