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.

Results: 426
Select Image Part # Mfr. Description Datasheet Availability Pricing (DKK) 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 .2A 24V 100A Imax 7.631In Stock
9.000Expected 18/03/2026
Min.: 1
Mult.: 1
Reel: 3.000

nanoSMD SMD/SMT SMD/SMT 200 mA 24 VDC 420 mA 100 A 3.1 Ohms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 100A 2.3Ohms 9.650In Stock
Min.: 1
Mult.: 1
Reel: 3.000

nanoSMD PCB Mount SMD/SMT 250 mA 16 VDC 580 mA 100 A 2.3 Ohms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .35A RESETTABLE SMD FUSE 17.707In Stock
Min.: 1
Mult.: 1
Reel: 3.000

nanoSMD SMD/SMT SMD/SMT 350 mA 16 VDC 750 mA 20 A 1.35 Ohms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .75A 6V 100A Imax 25.233In Stock
Min.: 1
Mult.: 1
Reel: 3.000

nanoSMD PCB Mount SMD/SMT 750 mA 6 VDC 1.5 A 100 A 300 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.1A 6V 100A Imax 8.132In Stock
Min.: 1
Mult.: 1
Reel: 3.000

nanoSMD SMD/SMT SMD/SMT 1.1 A 6 VDC 2.2 A 100 A 200 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.5A 6V 100A Imax 10.113In Stock
Min.: 1
Mult.: 1
Reel: 3.000

nanoSMD SMD/SMT SMD/SMT 1.5 A 6 VDC 3 A 100 A 110 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .12A 15VDC 20A 0805 AEC-Q200 4.726In Stock
Min.: 1
Mult.: 1
Reel: 4.000

picoASMD SMD/SMT Solder 120 mA 15 VDC 300 mA 20 A 9 Ohms 0805 (2012 metric) - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 100MA-HD 40A SMD 10.265In Stock
Min.: 1
Mult.: 1
Reel: 4.000

ASMDC SMD/SMT SMD/SMT 100 mA 16 VDC 600 mA 40 A 1 Ohms 0805 (2012 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 9V 100A 3.2Ohms 11.224In Stock
Min.: 1
Mult.: 1
Reel: 4.000

picoSMD PCB Mount SMD/SMT 200 mA 9 VDC 470 mA 100 A 3.2 Ohms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 100A 1.4Ohms 11.842In Stock
Min.: 1
Mult.: 1
Reel: 4.000

picoSMD PCB Mount SMD/SMT 350 mA 6 VDC 750 mA 100 A 1.4 Ohms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC SMDC125F/33-2 12.051In Stock
Min.: 1
Mult.: 1
Reel: 4.000

SMDC PCB Mount SMD/SMT 1.25 A 33 VDC 2.5 A 40 A 250 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0402 LoRho SL .350A 9.739In Stock
Min.: 1
Mult.: 1
Reel: 10.000

Low Rho SMD/SMT SMD/SMT 350 mA 6 VDC 700 mA 40 A 700 mOhms 0402 (1005 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0603 LoRho SL 0.75A 3.175In Stock
4.000Expected 16/03/2026
Min.: 1
Mult.: 1
Reel: 4.000

Low Rho SMD/SMT SMD/SMT 750 mA 6 VDC 1.5 A 50 A 165 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 3.00A 3.418In Stock
Min.: 1
Mult.: 1
Reel: 3.000

Low Rho SMD/SMT SMD/SMT 3 A 6 VDC 6 A 50 A 30 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V POLYFUSE 1206 LoRho SL 1.1A 3.269In Stock
Min.: 1
Mult.: 1
Reel: 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 6V POLYFUSE 1206 LoRho SL 1.10A 3.660In Stock
Min.: 1
Mult.: 1
Reel: 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 6V POLYFUSE 1206 LoRho SL 2.6A 7.534In Stock
Min.: 1
Mult.: 1
Reel: 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 6V POLYFUSE 1206 LoRho SL 3.80A 3.250In Stock
Min.: 1
Mult.: 1
Reel: 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 6V 5.0A-HD 50A MAX 4.462In Stock
6.000Expected 27/04/2026
Min.: 1
Mult.: 1
Reel: 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 3.0A 1210 PTC SL 14.407In Stock
Min.: 1
Mult.: 1
Reel: 3.000

Low Rho PCB Mount SMD/SMT 3 A 6 VDC 6 A 50 A 20 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 3.5A 4.042In Stock
Min.: 1
Mult.: 1
Reel: 3.000

Low Rho SMD/SMT SMD/SMT 3.5 A 6 VDC 7 A 50 A 18 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 24V 3.0A-HD 50A SMD 5.234In Stock
5.000Expected 16/03/2026
Min.: 1
Mult.: 1
Reel: 2.500

Low Rho SMD/SMT SMD/SMT 3 A 24 VDC 6 A 50 A 30 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 24V 6.0A-HD 100A MAX 5.659In Stock
Min.: 1
Mult.: 1
Reel: 2.500

Low Rho SMD/SMT SMD/SMT 6 A 24 VDC 12 A 50 A 12 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .6A 30V SMD AEC-Q200 4.617In Stock
Min.: 1
Mult.: 1
Reel: 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 .14A 60V 10A Imax 47.458In Stock
31.900Expected 17/02/2026
Min.: 1
Mult.: 1
Reel: 2.000

miniSMD SMD/SMT SMD/SMT 140 mA 60 VDC 280 mA 10 A 6 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel