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: 64
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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 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 60V 100MA-HD 10A SMD
Datasheet
16.475In 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 .8A 16V HighTemp SMD AEC-Q200
Datasheet
6.459In 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 .75A 33VDC 40A 2920 AEC-Q200
Datasheet
6.253In 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
Littelfuse Resettable Fuses - PPTC 1.25A 33VDC 40A 2920 AEC-Q200
Datasheet
8.351In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

ASMDC PCB Mount SMD/SMT 1.25 A 33 VDC 2.5 A 40 A 250 mOhms - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.85A 33VDC 40A 2920 AEC-Q200
Datasheet
5.262In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

ASMDC SMD/SMT SMD/SMT 1.85 A 33 VDC 3.7 A 40 A 150 mOhms 2920 (7450 metric) - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 3A 24VDC 40A 2920 AEC-Q200
Datasheet
5.016In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

ASMDC PCB Mount SMD/SMT 3 A 24 VDC 6 A 40 A 72 mOhms - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .1A 15VDC 10A 0603 AEC-Q200
Datasheet
4.102In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

femtoASMD PCB Mount SMD/SMT 100 mA 15 VDC 300 mA 10 A 14 Ohms - 40 C + 85 C AEC-Q200 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .05A 15VDC 10A 0603 AEC-Q200
Datasheet
5.737In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
6.806In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 .12A 15VDC 20A 0805 AEC-Q200
Datasheet
5.016In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 12V 2.6A-HD 100A 1812
Datasheet
1.299In Stock
Min.: 1
Mult.: 1

miniASMD PCB Mount SMD/SMT 2.6 A 12 VDC 5 A 1812 (4532 metric) - 40 C + 85 C
Littelfuse Resettable Fuses - PPTC 13.2V 2.6A-HD 100A 1812
Datasheet
1.499In Stock
Min.: 1
Mult.: 1

miniASMD PCB Mount SMD/SMT 2.6 A 13.2 VDC 5 A 1812 (4532 metric) - 40 C + 85 C
Littelfuse Resettable Fuses - PPTC 1.2A 16VHighTemp SMD AEC-Q200
Datasheet
19In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

AHS SMD/SMT SMD/SMT 1.2 A 16 VDC 2.3 A 50 A 150 mOhms 2920 (7450 metric) - 40 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.6A 16VHighTemp SMD AEC-Q200
Datasheet
523In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

AHS SMD/SMT SMD/SMT 1.6 A 16 VDC 3.2 A 70 A 50 mOhms 3425 (8673 metric) - 40 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 2A 16V High Temp SMD AEC-Q200
Datasheet
2.159In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

AHS SMD/SMT SMD/SMT 2 A 16 VDC 4 A 70 A 50 mOhms 3425 (8673 metric) - 40 C + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .37A 60V SMD AEC-Q200
Datasheet
2.511In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

ASMD SMD/SMT SMD/SMT 370 mA 60 VDC 980 mA 10 A 1.4 Ohms 2920 (7450 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .6A 30V SMD AEC-Q200
Datasheet
3.806In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 .9A 30V SMD AEC-Q200
Datasheet
2.935In Stock
4.000Expected 6/23/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

ASMD SMD/SMT SMD/SMT 900 mA 30 VDC 2.16 A 40 A 480 mOhms 2920 (7450 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.04A 16V SMD AEC-Q200
Datasheet
1.634In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 1.2A 33V SMD AEC-Q200
Datasheet
1.462In Stock
1.500Expected 6/1/2026
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 1.85A 16V SMD AEC-Q200
Datasheet
1.080In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

ASMD SMD/SMT SMD/SMT 1.85 A 16 VDC 3.7 A 40 A 126 mOhms 3425 (8764 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.73A 16V SMD AEC-Q200
Datasheet
1.106In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

ASMD SMD/SMT SMD/SMT 1.73 A 16 VDC 3.93 A 40 A 120 mOhms 3425 (8764 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .1A 30V Micro SMD AEC-Q200
Datasheet
3.265In Stock
8.000Expected 7/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4.000

microASMD SMD/SMT SMD/SMT 100 mA 30 VDC 250 mA 10 A 15 Ohms 1210 (3225 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .1A 60V Mini SMD AEC-Q200
Datasheet
211In Stock
10.000Expected 8/17/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

miniASMD SMD/SMT SMD/SMT 100 mA 60 VDC 300 mA 40 A 12.7 Ohms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel