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 15V 1206 .500A POLYFUSE
Datasheet
19.409In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
31.594In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 16V 0.75A 1206 PTC
Datasheet
14.845In Stock
18.000Expected 9/17/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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 6V POLYFUSE 1206 LoRho SL 0.75A
Datasheet
3.665In Stock
4.000Expected 5/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho SMD/SMT SMD/SMT 750 mA 6 VDC 1.5 A 50 A 180 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 8V 1206 0.75A POLYFUSE SMD THIN
Datasheet
13.988In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

1206L PCB Mount SMD/SMT 750 mA 8 VDC 1.5 A 100 A 290 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V POLYFUSE 1206 LoRho SL 1.1A
Datasheet
2.588In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho SMD/SMT SMD/SMT 1.1 A 12 VDC 2.2 A 50 A 130 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 1.10A 1206 PTC
Datasheet
12.851In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 6V POLYFUSE 1206 LoRho SL 1.10A
Datasheet
4.989In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho SMD/SMT SMD/SMT 1.1 A 6 VDC 2.2 A 50 A 100 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V POLYFUSE 1206 LoRho SL 1.50A
Datasheet
2.507In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
2.517In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 PTC 6V 1206 1.5A POLYFUSE SMD THIN
Datasheet
10.991In Stock
30.000Expected 5/20/2026
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 6V POLYFUSE 1206 LoRho SL 1.75A
Datasheet
2.389In Stock
4.000Expected 8/17/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho SMD/SMT SMD/SMT 1.75 A 6 VDC 3.5 A 50 A 30 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 6V POLY SURF MOUNT 1206 2.0A
Datasheet
9.608In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

1206L SMD/SMT SMD/SMT 2 A 6 VDC 3.5 A 100 A 80 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 2.6A
Datasheet
6.824In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho SMD/SMT SMD/SMT 2.6 A 6 VDC 5 A 50 A 26 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 12V 3.0A-HD 50A SMD
Datasheet
1.428In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 12V 3.5A-HD 10A SMD
Datasheet
2.473In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

Low Rho SMD/SMT SMD/SMT 3.5 A 12 VDC 7 A 50 A 20 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.80A
Datasheet
1.865In 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 12V 4.0A-HD 50A SMD
Datasheet
5.205In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

Low Rho SMD/SMT SMD/SMT 4 A 12 VDC 8 A 50 A 16 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 4A
Datasheet
9.378In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 6V POLYFUSE 1206 LoRho SL 4.50A
Datasheet
2.796In Stock
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 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 6V 5.0A-HD 50A MAX
Datasheet
8.939In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

Low Rho SMD/SMT SMD/SMT 5 A 6 VDC 10 A 50 A 12 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 6V 6.0A-HD 50A SMD
Datasheet
6.235In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

Low Rho SMD/SMT SMD/SMT 6 A 6 VDC 12 A 50 A 10 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.05A 30V 1210
Datasheet
40.067In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
15.962In Stock
36.000Expected 7/29/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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
12.195In Stock
9.000Expected 5/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 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