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.

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Description Datasheet Availability Pricing (DKK) 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 1.75A 16V 100A Imax
Datasheet
3.551In Stock
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
Littelfuse Resettable Fuses - PPTC 1.7A 16V 100A Imax
Datasheet
631In Stock
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
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
11.202In 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
3.268In Stock
5.000Expected 15/06/2026
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
6.475In Stock
1.000Expected 01/06/2026
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
7.507In Stock
8.000Expected 21/09/2026
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
7.981In 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 9A 20V 100A Imax
Datasheet
7.973In 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 SRP175F
Datasheet
10.284In Stock
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
Littelfuse Resettable Fuses - PPTC SRP200F
Datasheet
15.363In Stock
19.000Expected 22/07/2026
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
Littelfuse Resettable Fuses - PPTC SRP350F
Datasheet
7.069In Stock
23.000Expected 30/06/2026
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
Littelfuse Resettable Fuses - PPTC 1.75A 12V 100A Imax
Datasheet
6.989In Stock
15.000Expected 13/07/2026
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
Littelfuse Resettable Fuses - PPTC 1.7A 16V 100A Imax
Datasheet
3.590In Stock
10.000Expected 24/06/2026
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
Littelfuse Resettable Fuses - PPTC 2.1A 16V 100A Imax
Datasheet
9.713In Stock
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
Littelfuse Resettable Fuses - PPTC LR4-190F
Datasheet
830In Stock
2.000Expected 07/09/2026
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 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
642In Stock
7.000Expected 06/07/2026
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
Littelfuse Resettable Fuses - PPTC 1.2A 15V 100A Imax
Datasheet
1.357In Stock
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
Littelfuse Resettable Fuses - PPTC 2.7A 16V 60A Imax
Datasheet
978In Stock
1.000Expected 30/06/2026
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
Littelfuse Resettable Fuses - PPTC 1.7A 12V 100A Imax
Datasheet
715In Stock
1.000Expected 04/06/2026
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
Littelfuse Resettable Fuses - PPTC 1.1A 16V 100A Imax
Datasheet
910In Stock
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
Littelfuse Resettable Fuses - PPTC 2.1A 16V 100A Imax
Datasheet
1.000In Stock
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
Littelfuse Resettable Fuses - PPTC 4.2A 30V
Datasheet
16.475On Order
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