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.

Results: 12
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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Mounting Style
Termination Style
Hold Current
Maximum Voltage
Trip Current
Current Rating - Max
Resistance
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Littelfuse Resettable Fuses - PPTC 9A 20V 100A Imax
Datasheet
7,373In Stock
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
Littelfuse Resettable Fuses - PPTC LR4-600XF
Datasheet
2,920In Stock
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
Littelfuse Resettable Fuses - PPTC LR4-1300SSF
Datasheet
4,159In Stock
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
Littelfuse Resettable Fuses - PPTC 2.6A 15V 100A Imax
Datasheet
5,902In Stock
29,000On Order
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
Littelfuse Resettable Fuses - PPTC LR4-380F
Datasheet
8,268In Stock
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
Littelfuse Resettable Fuses - PPTC 4.5A 20V 100A Imax
Datasheet
6,665In Stock
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
Littelfuse Resettable Fuses - PPTC 5.5A 20V 100A Imax
Datasheet
4,507In Stock
8,000Expected 15/06/2026
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
Littelfuse Resettable Fuses - PPTC 6A 20V 100A Imax
Datasheet
7,426In Stock
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
Littelfuse Resettable Fuses - PPTC LR4-190F
Datasheet
830In Stock
2,000Expected 23/06/2026
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
Littelfuse Resettable Fuses - PPTC 2.6A 15V 100A Imax
Datasheet
1,655In Stock
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
Littelfuse Resettable Fuses - PPTC LR4-380XF
Datasheet
8In Stock
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
Littelfuse Resettable Fuses - PPTC 7.3A 20V 100A Imax
Datasheet
16,642On Order
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