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 0402 LoRho SL .350A
Datasheet
14,503In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 .35A .1s
Datasheet
65,571In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

1206L SMD/SMT SMD/SMT 350 mA 6 VDC 750 mA 100 A 1.2 Ohms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A
Datasheet
45,527In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 3 A 6 VDC 6 A 50 A 20 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 1.1A-HD 22A SMD
Datasheet
2,002In 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 1.25A-HD 40A SMD
Datasheet
4,217In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Automotive SMD SMD/SMT SMD/SMT 1.25 A 12 VDC 3.75 A 40 A 300 mOhms 1210 (3225 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 0805 LoRho SL 2.60A
Datasheet
6,544In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 2.6 A 6 VDC 5.2 A 50 A 35 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 2920 LoRho SL 7.0A
Datasheet
2,670In 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
2,553In Stock
Min.: 1
Mult.: 1
: 2,000

miniASMD PCB Mount SMD/SMT 1812 (4532 metric) + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 1.5A 15V 40A Imax
Datasheet
12,877In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD SMD/SMT SMD/SMT 1.5 A 15 VDC 3 A 40 A 250 mOhms 3425 (8764 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.35A 6V 0805
Datasheet
2,760In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

0805L PCB Mount SMD/SMT 350 mA 6 VDC 750 mA 100 A 1.2 Ohms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V 1812 1.50A POLYFUSE
Datasheet
5,606In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L SMD/SMT SMD/SMT 1.5 A 12 VDC 3 A 100 A 110 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1812 LoRho SL 2.60A
Datasheet
2,782In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

Low Rho SMD/SMT SMD/SMT 2.6 A 6 VDC 6 A 50 A 24 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .8A 16V HighTemp SMD AEC-Q200
Datasheet
6,451In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

AHS SMD/SMT SMD/SMT 800 mA 16 VDC 2 A 70 A 130 mOhms 2018 (5050 metric) - 40 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .3A 60VDC 10A 2920 AEC-Q200
Datasheet
5,351In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

ASMDC PCB Mount SMD/SMT 300 mA 60 VDC 600 mA 10 A 3.4 Ohms - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .5A 24V Mini SMD AEC-Q200
Datasheet
14,214In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

miniASMD SMD/SMT SMD/SMT 500 mA 24 VDC 1 A 100 A 1 Ohms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V 750MA-HD 40A SMD
Datasheet
4,301In Stock
Min.: 1
Mult.: 1
: 3,000

picoSMD PCB Mount SMD/SMT 750 mA 6 VDC 1.5 A 40 A 350 mOhms - 40 C + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 1.10A 6V 0805
Datasheet
3,613In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

0805L SMD/SMT SMD/SMT 1 A 6 VDC 1.95 A 40 A 210 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 12V 5.0A-HD 50A SMD
Datasheet
5,337In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 5 A 12 VDC 10 A 50 A 12 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 6V 5.5A-HD 50A SMD
Datasheet
1,755In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Low Rho SMD/SMT SMD/SMT 5.5 A 6 VDC 11 A 50 A 11 mOhms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 2.0A 15V 2920
Datasheet
5,537In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

2920L SMD/SMT SMD/SMT 2 A 15 VDC 4 A 40 A 125 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 15V 4A Poly 2920 PTC
Datasheet
15,195In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

2920L SMD/SMT SMD/SMT 4 A 15 VDC 8 A 40 A 40 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 0.20A 1812 PTC POLY SMT
Datasheet
3,677In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L SMD/SMT SMD/SMT 200 mA 60 VDC 400 mA 40 A 4.4 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 24V 500MA-HD 20A SMD
Datasheet
15,109In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

nanoASMDCH SMD/SMT SMD/SMT 500 mA 24 VDC 2.5 A 20 A 200 mOhms 1206 (3216 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .05A 30V Micro SMD AEC-Q200
Datasheet
7,603In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

microASMD SMD/SMT SMD/SMT 50 mA 30 VDC 150 mA 10 A 50 Ohms 1210 (3225 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC SMDC310F/18-02
Datasheet
9,953In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMDC PCB Mount SMD/SMT 3.1 A 18 VDC 6 A 50 A 36 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel