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 .25A 1206 POLYFUSE
Datasheet
16,957In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

1206L PCB Mount SMD/SMT 250 mA 16 VDC 500 mA 100 A 2.3 Ohms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 16V 1206 .350A POLY SURF MOUNT
Datasheet
10,953In Stock
8,000Expected 23/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

1206L SMD/SMT SMD/SMT 350 mA 16 VDC 750 mA 100 A 1.2 Ohms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 30V 350MA-HD 100A SMD
Datasheet
34,261In Stock
27,000Expected 17/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1206L PCB Mount SMD/SMT 350 mA 30 VDC 750 mA 100 A 1.2 Ohms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 15V 1206 .500A POLYFUSE
Datasheet
31,164In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

1206L SMD/SMT SMD/SMT 500 mA 15 VDC 1 A 100 A 750 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1206 PTC 6V 500MA
Datasheet
23,992In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

1206L SMD/SMT SMD/SMT 500 mA 6 VDC 1 A 100 A 700 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 13.2V POLY 1206 HALOGEN-FREE .75
Datasheet
9,914In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1206L SMD/SMT SMD/SMT 750 mA 13.2 VDC 1.5 A 100 A 350 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 0.75A 1206 PTC
Datasheet
17,813In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1206L SMD/SMT SMD/SMT 750 mA 16 VDC 1.5 A 100 A 290 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 1.10A 1206 PTC
Datasheet
16,948In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1206L PCB Mount SMD/SMT 1.1 A 16 VDC 2.2 A 100 A 180 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 8V 1206 1.1A POLYFUSE SMD THIN
Datasheet
20,649In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

1206L PCB Mount SMD/SMT 1.1 A 8 VDC 2.2 A 100 A 180 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V POLYFUSE 1206 LoRho SL 1.50A
Datasheet
3,575In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

Low Rho SMD/SMT SMD/SMT 1.5 A 12 VDC 3 A 50 A 80 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 1.50A
Datasheet
3,448In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

Low Rho SMD/SMT SMD/SMT 1.5 A 6 VDC 3 A 50 A 55 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 12V 3.0A-HD 50A SMD
Datasheet
2,548In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

Low Rho SMD/SMT SMD/SMT 3 A 12 VDC 6 A 50 A 30 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 4A
Datasheet
11,836In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

Low Rho SMD/SMT SMD/SMT 4 A 6 VDC 8 A 50 A 16 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 12V 5.0A-HD 50A SMD
Datasheet
2,878In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

Low Rho SMD/SMT SMD/SMT 5 A 12 VDC 10 A 50 A 12 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.05A 30V 1210
Datasheet
11,167In Stock
8,850Expected 16/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1210L PCB Mount SMD/SMT 50 mA 30 V 150 mA 10 A 50 Ohms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.10A 30V 1210
Datasheet
22,035In Stock
15,000Expected 15/04/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1210L PCB Mount SMD/SMT 100 mA 30 VDC 300 mA 10 A 15 Ohms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 30V 1210 .200A POLYFUSE
Datasheet
14,174In Stock
12,000Expected 17/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1210L SMD/SMT SMD/SMT 200 mA 30 VDC 400 mA 10 A 5 Ohms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.50A 13.2V 1210
Datasheet
36,636In Stock
3,000Expected 17/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

1210L PCB Mount SMD/SMT 500 mA 13.2 VDC 1 A 100 A 900 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 30V 500MA-HD 100A SMD
Datasheet
32,096In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1210L SMD/SMT SMD/SMT 500 mA 30 VDC 1 A 40 A 900 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V 1.10A 1210 PTC
Datasheet
6,193In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1210L SMD/SMT SMD/SMT 1.1 A 12 VDC 2.2 A 100 A 210 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 1.10A 1210 PTC
Datasheet
9,725In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

1210L SMD/SMT SMD/SMT 1.1 A 16 VDC 2.2 A 100 A 210 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 8V 1210 1.1A POLYFUSE SMD THIN
Datasheet
10,779In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 60V 0.10A 1812 PTC POLY SMT
Datasheet
4,816In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 PTC 30V .100A POLY SURF MOUNT
Datasheet
7,780In Stock
7,500Expected 01/04/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

1812L PCB Mount SMD/SMT 100 mA 30 VDC 300 mA 100 A 15 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.14A 60V 1812
Datasheet
27,214In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

1812L SMD/SMT SMD/SMT 140 mA 60 VDC 340 mA 10 A 6 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel