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 (IDR) 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 1.2A 16VHighTemp SMD AEC-Q200
Datasheet
29In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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
Reel: 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
930In Stock
1.500Expected 11/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 .23A 60V SMD AEC-Q200
Datasheet
2.142In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.000

ASMD PCB Mount SMD/SMT 230 mA 60 VDC 590 mA 10 A 4.8 Ohms - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .37A 60V SMD AEC-Q200
Datasheet
2.864In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 .9A 30V SMD AEC-Q200
Datasheet
3.391In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 1.85A 16V SMD AEC-Q200
Datasheet
1.300In Stock
Min.: 1
Mult.: 1
Reel: 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
Littelfuse Resettable Fuses - PPTC 1.73A 16V SMD AEC-Q200
Datasheet
1.119In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 1.1A 24V Mini SMD AEC-Q200
Datasheet
1.800In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

miniASMD SMD/SMT SMD/SMT 1.1 A 24 VDC 2.2 A 20 A 180 mOhms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC .75A 33VDC 40A 2920 AEC-Q200
Datasheet
2.917Expected 17/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 13.2V 750MA-HD 100A 1812
Datasheet
Non-Stocked Lead-Time 11 Weeks
Min.: 1
Mult.: 1

miniASMD SMD/SMT SMD/SMT 750 mA 13.2 VDC 1.5 A 100 A 450 mOhms 1812 (4532 metric) - 40 C + 85 C
Littelfuse Resettable Fuses - PPTC 12V 1.5A-HD 100A 1812
Datasheet
Non-Stocked Lead-Time 11 Weeks
Min.: 1
Mult.: 1

miniASMD PCB Mount SMD/SMT 1.5 A 12 VDC 2.8 A 1812 (4532 metric) - 40 C + 85 C
Littelfuse Resettable Fuses - PPTC NANOSMD500LR-D-2
Datasheet
Non-Stocked
Min.: 3.000
Mult.: 3.000

miniASMD PCB Mount SMD/SMT 1206 (3216 metric)
Littelfuse Resettable Fuses - PPTC AUTOMOTIVE POLY SWITCH Non-Stocked
Min.: 2.000
Mult.: 2.000
Reel: 2.000

ASMD PCB Mount SMD/SMT 900 mA 33 V 2.16 A 40 A 480 mOhms - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 1.27A 16V SMD AEC-Q200
Datasheet
Non-Stocked Lead-Time 15 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

ASMD SMD/SMT SMD/SMT 1.27 A 16 VDC 2.95 A 40 A 250 mOhms 3425 (8764 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1.2A 33V SMD AEC-Q200
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1
Reel: 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 1.97A 16V SMD AEC-Q200
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1.500
Mult.: 1.500
Reel: 1.500

ASMD SMD/SMT SMD/SMT 1.97 A 16 VDC 5 A 40 A 85 mOhms 3425 (8764 metric) - 40 C + 85 C AEC-Q100 Reel