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 (TWD) 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 0603 LoRho SL 1.75A
Datasheet
16,259In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 1.75 A 6 VDC 3.5 A 50 A 60 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.00A
Datasheet
53,560In 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 .35A .1s
Datasheet
66,616In 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 9V 3A 0603 POLYFUSE SURF MOUNT
Datasheet
5,107In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 3 A 9 VDC 6 A 50 A 30 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 6V POLYFUSE 1206 LoRho SL 3.50A
Datasheet
15,030In 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
5,490In 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 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 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
3,366In 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 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 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 600MA-HD 50A SMD
Datasheet
6,496In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

Low Rho SMD/SMT SMD/SMT 3 A 6 VDC 6 A 50 A 30 mOhms 0603 (1608 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.35A 6V 0805
Datasheet
3,130In 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 6V POLYFUSE 1812 LoRho SL 2.60A
Datasheet
2,784In 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 .3A 60VDC 10A 2920 AEC-Q200
Datasheet
5,448In 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 60VDC 10A 2920 AEC-Q200
Datasheet
6,752In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

ASMDC SMD/SMT SMD/SMT 500 mA 60 VDC 1 A 10 A 1.2 Ohms 2920 (7450 metric) - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .5A 24V Mini SMD AEC-Q200
Datasheet
14,340In 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 6V POLYFUSE 0805 LoRho SL 2.60A
Datasheet
6,574In 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
2,723In Stock
Min.: 1
Mult.: 1
: 2,000

miniASMD PCB Mount SMD/SMT 1812 (4532 metric) + 85 C Reel, Cut Tape
Littelfuse Resettable Fuses - PPTC 9V 1.1A 0805 POLYFUSE SURF MOUNT
Datasheet
9,873In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

0805L PCB Mount SMD/SMT 1.1 A 6 VDC 2 A 100 A 160 mOhms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 100MA-HD 10A SMD
Datasheet
16,445In Stock
Min.: 1
Mult.: 1

miniASMD SMD/SMT SMD/SMT 100 mA 60 VDC 250 mA 10 A 15 Ohms 1206 (3216 metric) - 40 C + 85 C
Littelfuse Resettable Fuses - PPTC .75A 33VDC 40A 2920 AEC-Q200
Datasheet
5,598In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

ASMDC PCB Mount SMD/SMT 750 mA 33 VDC 1.5 A 40 A 610 mOhms - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel