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.

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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
Package/Case
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Packaging
Littelfuse Resettable Fuses - PPTC 1.10A 33V 2920
Datasheet
3.306In Stock
32.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

2920L SMD/SMT SMD/SMT 1.1 A 33 VDC 2.2 A 40 A 410 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 1.1A-HD 20A 1210
Datasheet
2.202In Stock
31.000On Order
MouseReel Available
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 60V 1.1A-HD 20A MAX
Datasheet
1.239In Stock
MouseReel Available
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 33V 2.6A-HD 40A MAX
Datasheet
4In Stock
61.500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

2920L SMD/SMT SMD/SMT 2.6 A 33 VDC 5 A 40 A 75 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 2920 3A SURF MOUNT
Datasheet
630In Stock
MouseReel Available
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 24V 3.3A Poly 2920 PTC
Datasheet
733In Stock
24.000Expected 10/15/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

2920L SMD/SMT SMD/SMT 3.3 A 24 VDC 5.5 A 40 A 55 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V 7.0A-HD 50A 2920
Datasheet
2.567In Stock
MouseReel Available
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
Datasheet
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
Datasheet
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
Datasheet
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
Datasheet
424In Stock
2.000Expected 8/27/2026
MouseReel Available
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
Datasheet
19In Stock
MouseReel Available
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
Datasheet
480In Stock
MouseReel Available
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
Datasheet
1.909In Stock
MouseReel Available
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 .6A 30V SMD AEC-Q200
Datasheet
2.305In Stock
MouseReel Available
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
Datasheet
1.634In Stock
MouseReel Available
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
Datasheet
980In Stock
MouseReel Available
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
Datasheet
1.106In Stock
MouseReel Available
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
Datasheet
2.752In Stock
4.000Expected 11/10/2026
MouseReel Available
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
Datasheet
930In Stock
8.000Expected 11/16/2026
MouseReel Available
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
Datasheet
2.234In Stock
5.000Expected 12/14/2026
MouseReel Available
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 .1A 30V Micro SMD AEC-Q200
Datasheet
5.614Expected 10/13/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

microASMD SMD/SMT SMD/SMT 100 mA 30 VDC 250 mA 10 A 15 Ohms 1210 (3225 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.1A 6V 40A Imax
Datasheet
2.217In Stock
8.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

microSMD SMD/SMT SMD/SMT 1.1 A 6 VDC 2.2 A 40 A 210 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 1.75A-HD 40A MAX
Datasheet
1.778In Stock
4.000Expected 8/27/2026
MouseReel Available
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
Datasheet
3.064In Stock
MouseReel Available
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