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 PTC 6V 1206 1.5A POLYFUSE SMD THIN
Datasheet
964In Stock
72.000Expected 11/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

1206L PCB Mount SMD/SMT 1.5 A 8 VDC 3 A 100 A 120 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 8V 1.5A-HD 100A SMD
Datasheet
1.065In Stock
Min.: 1
Mult.: 1
: 3.000

1206L SMD/SMT SMD/SMT 1.5 A 8 VDC 3 A 100 A 120 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.80A
Datasheet
1.357In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho SMD/SMT SMD/SMT 2.82 A 6 VDC 8 A 50 A 14 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.35A 6V 1210
Datasheet
4.994In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

1210L SMD/SMT SMD/SMT 350 mA 6 VDC 700 mA 100 A 1.3 Ohms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 8V 1210 1.1A POLYFUSE SMD THIN
Datasheet
5.644In Stock
8.000Expected 10/14/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

1210L SMD/SMT SMD/SMT 1.1 A 8 VDC 2.2 A 100 A 210 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 2A
Datasheet
66In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho PCB Mount SMD/SMT 2 A 6 VDC 4 A 50 A 24 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 4.50A
Datasheet
87In Stock
6.000Expected 9/24/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

Low Rho PCB Mount SMD/SMT 4.5 A 6 VDC 9 A 50 A 14 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 0.10A 1812 PTC POLY SMT
Datasheet
461In Stock
1.500Expected 8/20/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

1812L PCB Mount SMD/SMT 100 mA 60 VDC 300 mA 10 A 15 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1812 15V .5A
Datasheet
1.633In Stock
8.000Expected 10/27/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

1812L SMD/SMT SMD/SMT 500 mA 15 VDC 1 A 100 A 1 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1812 13.2V 0.75A
Datasheet
4.336In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

1812L SMD/SMT SMD/SMT 750 mA 13.2 VDC 1.5 A 100 A 450 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 24V POLY 1812 HALOGEN-FREE 1.10A
Datasheet
29In Stock
9.000Expected 10/22/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

1812L PCB Mount SMD/SMT 1.1 A 24 VDC 1.95 A 20 A 200 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1812 8V 1.1A
Datasheet
5.913In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

1812L SMD/SMT SMD/SMT 1.1 A 8 VDC 2.2 A 100 A 210 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 16V POLY 1812 HALOGEN-FREE 1.25A
Datasheet
2.694In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

1812L SMD/SMT SMD/SMT 1.25 A 16 VDC 2.5 A 100 A 140 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 1.50A 1812 PTC Poly Halo-Free
Datasheet
2.055In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
5.360In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
2.036In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
1.987In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
4.374In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 16V POLY SURF
Datasheet
186In Stock
7.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

1812L SMD/SMT SMD/SMT 2.6 A 16 VDC 5 A 100 A 50 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 16V 3.0A-HD 40A SMD
Datasheet
3.442In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 PTC 250/60V POLYFUSE SMD RA
Datasheet
2.377In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

250S PCB Mount SMD/SMT 130 mA 60 VDC 260 mA 3 A 10 Ohms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RB
Datasheet
1.103In Stock
1.500Expected 8/27/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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 FTC 250V POLYFUSE SMD
Datasheet
20In Stock
4.500Expected 10/1/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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 250/60V 0.13A PTC Vertical
Datasheet
2.582In Stock
3.600Expected 9/17/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.200

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
1.445In Stock
Min.: 1
Mult.: 1
: 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