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 6V POLYFUSE 2920 LoRho SL 7.0A
Datasheet
2.700In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

Low Rho SMD/SMT SMD/SMT 7 A 6 VDC 14 A 50 A 7 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 2.0A-HD 40A SMD
Datasheet
2.723In Stock
Min.: 1
Mult.: 1
: 2.000

miniASMD PCB Mount SMD/SMT 1812 (4532 metric) + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.50A
Datasheet
15.080In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho SMD/SMT SMD/SMT 3.5 A 6 VDC 7 A 50 A 18 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 33V 750MA-HD 100A 1812
Datasheet
6.335In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

miniASMD SMD/SMT SMD/SMT 750 mA 33 VDC 1.6 A 100 A 390 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.5A 12V 100A Imax
Datasheet
41.265In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

miniSMD SMD/SMT SMD/SMT 1.5 A 12 VDC 2.8 A 100 A 110 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 100MA-HD 40A SMD
Datasheet
9.406In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 SMDC030F-2
Datasheet
6.044In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

SMDC SMD/SMT SMD/SMT 2920 (7450 metric) + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC SMDC125F/33-2
Datasheet
7.192In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 12V 0.1A Ih 5.8 Ohm
Datasheet
3.809In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

femtoSMD SMD/SMT SMD/SMT 100 mA 12 VDC 250 mA 40 A 8 Ohms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 1.1A-HD 22A SMD
Datasheet
2.004In Stock
Min.: 1
Mult.: 1
: 3.000
0805L SMD/SMT SMD/SMT 1.1 A 6 VDC 2 A 100 A 160 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape

Littelfuse Resettable Fuses - PPTC 12V 2.6A-HD 50A SMD
Datasheet
3.416In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho SMD/SMT SMD/SMT 2.6 A 12 VDC 5 A 50 A 55 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 170 mOhms 40 A 6 VDC - 40 C+ 85 C
Datasheet
11.273In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

picoSMD PCB Mount SMD/SMT 1.1 A 6 VDC 2.2 A 40 A 170 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1210 LoRho SL 2.6A
Datasheet
209In Stock
4.000Expected 12/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

Low Rho SMD/SMT SMD/SMT 2.6 A 6 V 5 A 50 A 20 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 2920 2.60A POLYFUSE
Datasheet
268In Stock
2.000Expected 10/1/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

2920L SMD/SMT SMD/SMT 2.6 A 6 VDC 5 A 40 A 75 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 3.00A
Datasheet
104In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

Low Rho SMD/SMT SMD/SMT 3 A 6 VDC 7 A 50 A 21 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 6V POLY SURF MOUNT 1210 1.75A
Datasheet
2.755In Stock
Min.: 1
Mult.: 1
: 3.000

1210L SMD/SMT SMD/SMT 1.75 A 6 VDC 3.5 A 100 A 80 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 6V 2016 2A SURF MOUNT
Datasheet
2.566In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

2016L SMD/SMT SMD/SMT 2 A 6 VDC 4.2 A 40 A 100 mOhms 2016 (5041 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .75A 24V Mini SMD AEC-Q200
Datasheet
2.756In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

miniASMD SMD/SMT SMD/SMT 750 mA 24 VDC 1.5 A 40 A 290 mOhms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 13.2V 500MA-HD 70A SMD
Datasheet
2.674In Stock
Min.: 1
Mult.: 1
miniASMD SMD/SMT SMD/SMT 500 mA 13.2 VDC 1.1 A 70 A 750 mOhms 1206 (3216 metric) - 40 C + 85 C
Littelfuse Resettable Fuses - PPTC 15V 100A 9Ohms
Datasheet
3.440In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

picoSMD PCB Mount SMD/SMT 120 mA 15 VDC 300 mA 100 A 9 Ohms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.2A 33V SMD AEC-Q200
Datasheet
2.946In Stock
Min.: 1
Mult.: 1
: 1.500

ASMD SMD/SMT SMD/SMT 1.2 A 33 VDC 2.88 A 40 A 230 mOhms 3425 (8763 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC PTC 250/60V POLYFUSE SMD RB
Datasheet
2.603In Stock
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 15V 2016 1.10A SURF MOUNT
Datasheet
3.525In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 13.2V 500MA-HD 40A 1210
Datasheet
3.378In Stock
Min.: 1
Mult.: 1
miniASMD SMD/SMT SMD/SMT 500 mA 13.2 VDC 1 A 40 A 900 mOhms 1210 (3225 metric) - 40 C + 85 C
Littelfuse Resettable Fuses - PPTC 12V 750MA-HD 40A SMD
Datasheet
2.272In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

Automotive SMD SMD/SMT SMD/SMT 750 mA 12 VDC 2.25 A 40 A 460 mOhms 1206 (3216 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel