PolySwitch Surface-Mount Resettable PTCs

Littelfuse PolySwitch Surface-Mount (SMD) Resettable PTCs provide overcurrent protection for applications where space is at a premium, and resettable protection is desired. The components are reliable and capable of protecting computers and consumer electronics against temporary overcurrent faults. Package sizes range from 0402 to 3425, while the current hold ranges from 50mA to 7.0A. The Littelfuse PolySwitch SMD product family is qualified to strict automotive standards (per AECQ200). As a result, these PTCs are suitable for protecting electronic control units (ECUs) against damage from faults that would otherwise require costly, complete module replacement.

Results: 405
Select Image Part # Mfr. Description Datasheet Availability Pricing (IDR) 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 Package/Case Minimum Operating Temperature Maximum Operating Temperature Qualification Packaging
Littelfuse Resettable Fuses - PPTC 60V 1.1A-HD 20A MAX 1.189In Stock
Min.: 1
Mult.: 1
: 1.000

2920L SMD/SMT SMD/SMT 1.1 A 60 VDC 2.2 A 20 A 410 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.25A 15V 2920 4.501In Stock
Min.: 1
Mult.: 1
: 2.000

2920L SMD/SMT SMD/SMT 1.25 A 15 VDC 2.5 A 40 A 250 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 2920 3A SURF MOUNT 630In Stock
Min.: 1
Mult.: 1
: 1.500

2920L PCB Mount SMD/SMT 3 A 6 VDC 5 A 40 A 48 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V 7.0A-HD 50A 2920 2.567In Stock
Min.: 1
Mult.: 1
: 1.000

2920L SMD/SMT SMD/SMT 7 A 12 VDC 14 A 50 A 18 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V 7.0A-HD 50A MAX 1.518In Stock
Min.: 1
Mult.: 1
: 1.000

2920L SMD/SMT SMD/SMT 7 A 12 VDC 14 A 50 A 18 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 12V 2.6A-HD 100A 1812 1.251In Stock
Min.: 1
Mult.: 1

miniASMD PCB Mount SMD/SMT 2.6 A 12 VDC 5 A 1812 (4532 metric) - 40 C + 85 C
Littelfuse Resettable Fuses - PPTC 13.2V 2.6A-HD 100A 1812 1.449In Stock
Min.: 1
Mult.: 1

miniASMD PCB Mount SMD/SMT 2.6 A 13.2 VDC 5 A 1812 (4532 metric) - 40 C + 85 C
Littelfuse Resettable Fuses - PPTC 30V 500MA-HD 20A SMD 424In Stock
2.000Expected 27/08/2026
Min.: 1
Mult.: 1
: 2.000

PCB Mount SMD/SMT 500 mA 30 VDC 1.6 A 20 A 1.35 Ohms - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.2A 16VHighTemp SMD AEC-Q200 19In Stock
Min.: 1
Mult.: 1
: 2.000

AHS SMD/SMT SMD/SMT 1.2 A 16 VDC 2.3 A 50 A 150 mOhms 2920 (7450 metric) - 40 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.6A 16VHighTemp SMD AEC-Q200 480In Stock
Min.: 1
Mult.: 1
: 1.500

AHS SMD/SMT SMD/SMT 1.6 A 16 VDC 3.2 A 70 A 50 mOhms 3425 (8673 metric) - 40 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 2A 16V High Temp SMD AEC-Q200 1.909In Stock
Min.: 1
Mult.: 1
: 1.500

AHS SMD/SMT SMD/SMT 2 A 16 VDC 4 A 70 A 50 mOhms 3425 (8673 metric) - 40 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .37A 60V SMD AEC-Q200 3.317In Stock
Min.: 1
Mult.: 1
: 2.000

ASMD SMD/SMT SMD/SMT 370 mA 60 VDC 980 mA 10 A 1.4 Ohms 2920 (7450 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .6A 30V SMD AEC-Q200 2.285In Stock
Min.: 1
Mult.: 1
: 2.000

ASMD SMD/SMT SMD/SMT 600 mA 30 VDC 1.48 A 40 A 1 Ohms 2920 (7450 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.04A 16V SMD AEC-Q200 1.634In Stock
Min.: 1
Mult.: 1
: 2.000

ASMD SMD/SMT SMD/SMT 1.04 A 16 VDC 2.46 A 40 A 250 mOhms 2920 (7450 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.85A 16V SMD AEC-Q200 980In Stock
Min.: 1
Mult.: 1
: 1.500

ASMD SMD/SMT SMD/SMT 1.85 A 16 VDC 3.7 A 40 A 126 mOhms 3425 (8764 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.73A 16V SMD AEC-Q200 1.106In Stock
Min.: 1
Mult.: 1
: 1.500

ASMD SMD/SMT SMD/SMT 1.73 A 16 VDC 3.93 A 40 A 120 mOhms 3425 (8764 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .5A 60VDC 10A 2920 AEC-Q200 2.752In Stock
4.000Expected 10/11/2026
Min.: 1
Mult.: 1
: 4.000

ASMDC SMD/SMT SMD/SMT 500 mA 60 VDC 1 A 10 A 1.2 Ohms 2920 (7450 metric) - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC FEMTOSMDC010F/15-2 760In Stock
8.000Expected 16/11/2026
Min.: 1
Mult.: 1
: 4.000

femtoSMD SMD/SMT SMD/SMT 100 mA 15 VDC 250 mA 40 A 8 Ohms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 9V 160MA-HD 40A MAX 2.234In Stock
5.000Expected 14/12/2026
Min.: 1
Mult.: 1
: 5.000

femtoSMD SMD/SMT SMD/SMT 160 mA 9 VDC 400 mA 40 A 4.2 Ohms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .5A 13.2V 40A Imax 7.002In Stock
24.000Expected 27/10/2026
Min.: 1
Mult.: 1
: 4.000

microSMD SMD/SMT SMD/SMT 500 mA 13.2 VDC 1 A 40 A 900 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 1.75A-HD 40A MAX 1.702In Stock
4.000Expected 27/08/2026
Min.: 1
Mult.: 1
: 4.000

microSMD SMD/SMT SMD/SMT 1.75 A 6 VDC 3.5 A 40 A 80 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6Vdc 10A MINI-SMD 3.064In Stock
Min.: 1
Mult.: 1
: 4.000

microSMD PCB Mount SMD/SMT 500 mA 6 VDC 1.5 A 10 A 900 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .14A 60V Mini SMD AEC-Q200 3.803In Stock
Min.: 1
Mult.: 1
: 2.000

miniASMD SMD/SMT SMD/SMT 140 mA 60 VDC 280 mA 10 A 6 Ohms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .2A 30V Mini SMD AEC-Q200 4.800In Stock
Min.: 1
Mult.: 1
: 2.000

miniASMD SMD/SMT SMD/SMT 200 mA 30 VDC 400 mA 10 A 3.3 Ohms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .3A 30V Mini SMD AEC-Q200 796In Stock
10.000Expected 24/11/2026
Min.: 1
Mult.: 1
: 2.000

miniASMD SMD/SMT SMD/SMT 300 mA 30 VDC 600 mA 40 A 1.75 Ohms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel