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.

Results: 30
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Description Datasheet Availability Pricing (GBP) 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
26In 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 LR4-1300SSF
Datasheet
4,149In 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
22,137In Stock
40,000Expected 07/10/2026
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
6,551In 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 6A 20V 100A Imax
Datasheet
5,426In 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 7.3A 20V 100A Imax
Datasheet
8,632In Stock
7,000Expected 18/08/2026
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 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 SRP175F
Datasheet
6,754In Stock
8,000Expected 19/10/2026
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
17,138In Stock
37,000On Order
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
14,482In Stock
22,000Expected 08/09/2026
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 4.2A 30V
Datasheet
10,626In Stock
33,000On 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
Littelfuse Resettable Fuses - PPTC 1.75A 12V 100A Imax
Datasheet
15,773In Stock
10,000Expected 07/10/2026
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
13,590In Stock
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
8,413In 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
2,830In Stock
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 4.5A 20V 100A Imax
Datasheet
1,665In Stock
7,000Expected 07/10/2026
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
695In Stock
18,000Expected 13/08/2026
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 1.2A 15V 100A Imax
Datasheet
1,292In 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
1,478In Stock
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
1,715In Stock
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
894In 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
2,000Expected 20/08/2026
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 LR4-380XF
Datasheet
Non-Stocked Lead-Time 17 Weeks
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 LR4-600XF
Datasheet
Non-Stocked Lead-Time 17 Weeks
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