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 computer and consumer electronics against temporary overcurrent faults. Package size varies 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 (following the AECQ200 specification). 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 16V 1.50A 1812 PTC Poly Halo-Free
Datasheet
2.334In Stock
1.500Expected 5/27/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

1812L SMD/SMT SMD/SMT 1.5 A 16 VDC 2.8 A 100 A 110 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 8V 1.5A
Datasheet
7.025In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.000

1812L SMD/SMT SMD/SMT 1.5 A 8 VDC 3 A 100 A 110 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 12V 1.60A POLY SURF MOUNT
Datasheet
2.283In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

1812L PCB Mount SMD/SMT 1.6 A 12 VDC 2.8 A 100 A 100 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1812 6V 1.6A
Datasheet
2.497In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.000

1812L SMD/SMT SMD/SMT 1.6 A 8 VDC 2.8 A 100 A 100 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 8V 1812 2.0A POLYFUSE SMD THIN
Datasheet
2.253In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.000

1812L SMD/SMT SMD/SMT 2 A 8 VDC 3.5 A 100 A 70 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 8V 1812 2.6A 8V 1812 2.6A
Datasheet
2.118In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

1812L PCB Mount SMD/SMT 2.6 A 8 VDC 5.2 A 100 A 47 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 6V POLY SURF MOUNT 1812 3.0A
Datasheet
1.233In Stock
1.000Expected 4/16/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.000

1812L SMD/SMT SMD/SMT 3 A 6 VDC 5 A 100 A 40 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 15V 2016 1.10A SURF MOUNT
Datasheet
1.816In Stock
2.000Expected 3/25/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.000

2016L SMD/SMT SMD/SMT 1.1 A 15 VDC 2.2 A 40 A 400 mOhms 2016 (5041 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 16V 3.0A-HD 40A SMD
Datasheet
1.115In Stock
1.800Expected 2/23/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.000

2016L SMD/SMT SMD/SMT 3 A 16 VDC 5 A 40 A 48 mOhms 2016 (5041 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 5.0A-HD 100A SMD
Datasheet
2.969In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

2016L SMD/SMT SMD/SMT 5 A 6 VDC 10 A 100 A 25 mOhms 2016 (5041 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC FTC 250V POLYFUSE SMD
Datasheet
156In Stock
1.500Expected 4/13/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

250S PCB Mount SMD/SMT 130 mA 60 VDC 260 mA 3 A 13 Ohms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 300MA-HD 10A MAX
Datasheet
1.045In Stock
Min.: 1
Mult.: 1
Reel: 1.500

2920L SMD/SMT SMD/SMT 300 mA 60 VDC 600 mA 10 A 4.8 Ohms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 0.75A 30V 2920
Datasheet
752In Stock
3.748Expected 2/23/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

2920L SMD/SMT SMD/SMT 750 mA 30 VDC 1.5 A 40 A 1 Ohms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC PLYFUSE SMT 2920 60V .750A
Datasheet
2.643In Stock
4.900Expected 6/3/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.000

2920L SMD/SMT SMD/SMT 750 mA 60 VDC 1.5 A 10 A 950 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 1.1A-HD 20A MAX
Datasheet
1.494In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 2.0A 15V 2920
Datasheet
602In Stock
3.000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

2920L SMD/SMT SMD/SMT 2 A 15 VDC 4 A 40 A 125 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 2920 3A SURF MOUNT
Datasheet
1.018In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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-HD 40A SMD
Datasheet
1.424In Stock
Min.: 1
Mult.: 1
Reel: 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
Littelfuse Resettable Fuses - PPTC 16V 6.0A-HD 22A SMD
Datasheet
3.180In Stock
4.000Expected 4/20/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.000

2920L SMD/SMT SMD/SMT 6 A 16 VDC 12 A 40 A 20 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V 7.0A-HD 50A 2920
Datasheet
3.501In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
1.021In Stock
Min.: 1
Mult.: 1
Reel: 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 24V 500MA-HD 20A SMD
Datasheet
1.580In Stock
15.000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

nanoASMDCH SMD/SMT SMD/SMT 500 mA 24 VDC 2.5 A 20 A 200 mOhms 1206 (3216 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 2.0A-HD 40A SMD
Datasheet
943In Stock
2.000Expected 4/21/2026
Min.: 1
Mult.: 1
Reel: 2.000

miniASMD PCB Mount SMD/SMT 1812 (4532 metric) + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 12V 2.6A-HD 100A 1812
Datasheet
1.459In 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
348In 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