Automotive SMD Resettable Fuses

Littelfuse PolySwitch® Family of Automotive SMD Resettable PPTCs are designed to support the miniaturization trend in automotive electronics. These devices meet performance specifications for resistance, time-to-trip, and hold current at three temperatures (-40°C, 25°C, and max T). These parts are AEC-Q200 qualified, RoHS compliant, ELV compliant, lead free, and halogen free as well as ISO/TS16949 certified. ​Littelfuse automotive PPTCs provide current ratings from 0.05A to 3.0A and voltage ratings from 5VDC to 60VDC. These devices provide overcurrent and overtemperature protection for Electronic Control Units (ECUs), I/O ports and traces, telematics and infotainment systems, and motor and motor control circuits. Littelfuse Automotive SMD Resettable PPTCs are compatible with high-volume SMD assembly processes.

Results: 67
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Description Datasheet Availability Pricing (CAD) 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 RF5164-000 1210 0.5A 30VDC 1.5W 0.3Ohm
Datasheet
3,089In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

microASMD SMD/SMT SMD/SMT 500 mA 30 VDC 1.05 A 20 A 300 mOhms 1210 (3225 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .5A 24V Mini SMD AEC-Q200
Datasheet
15,678In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 .05A 15VDC 10A 0603 AEC-Q200
Datasheet
3,871In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

femtoASMD PCB Mount SMD/SMT 50 mA 15 VDC 150 mA 10 A 30 Ohms - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .08A 12VDC 10A 0603 AEC-Q200
Datasheet
9,554In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

femtoASMD PCB Mount SMD/SMT 80 mA 12 VDC 200 mA 10 A 14 Ohms - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .8A 16V HighTemp SMD AEC-Q200
Datasheet
6,514In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 13.2V 500MA-HD 70A SMD
Datasheet
2,704In 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 13.2V 500MA-HD 40A 1210
Datasheet
3,418In 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 .75A 24V Mini SMD AEC-Q200
Datasheet
2,809In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 1.04A 16V SMD AEC-Q200
Datasheet
3,134In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

ASMD SMD/SMT SMD/SMT 1.04 A 16 VDC 2.46 A 40 A 250 mOhms 2920 (7450 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5235-000 2018 0.5A 33VDC 1.5W 0.2Ohm
Datasheet
19,945In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

AHS SMD/SMT SMD/SMT 500 mA 33 VDC 1.5 A 70 A 200 mOhms 2018 (5050 metric) - 40 C + 125 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5236-000 2018 0.8A 33VDC 1.9W 0.1Ohm
Datasheet
19,973In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

AHS SMD/SMT SMD/SMT 800 mA 33 VDC 2 A 70 A 100 mOhms 2018 (5050 metric) - 40 C + 125 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5237-000 3425 1.6A 24VDC 2.3W 0.035Ohm
Datasheet
7,479In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

AHS SMD/SMT SMD/SMT 1.6 A 24 VDC 4.8 A 40 A 35 mOhms 3425 (8673 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5238-000 3425 2A 24VDC 2.3W 0.03Ohm
Datasheet
7,327In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

AHS SMD/SMT SMD/SMT 2 A 24 VDC 6 A 40 A 30 mOhms 3425 (8673 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5162-000 1210 0.2A 30VDC 0.8W 0.6Ohm
Datasheet
4,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

microASMD SMD/SMT SMD/SMT 200 mA 30 VDC 600 mA 20 A 600 mOhms 1210 (3225 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5163-000 1210 0.35A 30VDC 1.2W 0.4Ohm
Datasheet
3,728In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

microASMD SMD/SMT SMD/SMT 350 mA 30 VDC 1.05 A 20 A 400 mOhms 1210 (3225 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5034-000 1210 0.75A 16VDC 1.3W 0.1Ohm
Datasheet
9,985In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

microASMD SMD/SMT SMD/SMT 750 mA 16 VDC 2.25 A 20 A 100 mOhms 1210 (3225 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 33V 1.2A-HD 20A 2-SMD
Datasheet
13,733In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

AHS SMD/SMT SMD/SMT 1.2 A 33 VDC 2.3 A 20 A 150 mOhms 2920 (7450 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel

Littelfuse Resettable Fuses - PPTC 24V 3.0A-HD 20A 2-SMD
Datasheet
13,769In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

AHS SMD/SMT SMD/SMT 3 A 24 VDC 6 A 20 A 15 mOhms 3425 (8673 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5103-000 4,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

ASMD Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5160-000 1210 0.1A 30VDC 0.8W 1Ohm
Datasheet
3,995In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

microASMD SMD/SMT SMD/SMT 100 mA 30 VDC 300 mA 20 A 1 Ohms 1210 (3225 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5161-000 1210 0.16A 30VDC 0.8W 0.7Ohm
Datasheet
3,840In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 4,000

microASMD SMD/SMT SMD/SMT 160 mA 30 VDC 480 mA 20 A 700 mOhms 1210 (3225 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5030-000
Datasheet
4,420In Stock
3,000Expected 2026-03-12
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

nanoASMD SMD/SMT SMD/SMT 50 mA 30 VDC 150 mA 20 A 3.5 Ohms 1206 (3216 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC RF5028-000
Datasheet
2,018In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

nanoASMD SMD/SMT SMD/SMT 200 mA 30 VDC 600 mA 20 A 600 mOhms 1206 (3216 metric) - 40 C + 125 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 100MA-HD 10A SMD
Datasheet
17,993In 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 33V 750MA-HD 100A 1812
Datasheet
6,738In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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