1812L POLY-FUSE® PTC Resettable Fuses

Littelfuse 1812L POLY-FUSE® PTC Resettable Fuses provide overcurrent protection for applications where resettable protection is desired. The compact fuses offer fast response time to fault currents and feature low resistance. Littelfuse 1812L POLY-FUSE PTC Resettable Fuses applications include plug-and-play protection for motherboards and peripherals, USB peripherals, PCI cards, and game console port protection.

Results: 35
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Description Datasheet Availability Pricing (USD) 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
Packaging
Littelfuse Resettable Fuses - PPTC PTC 12V POLY SURF MOUNT 1812 2.6A
Datasheet
3,943In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

1812L SMD/SMT SMD/SMT 2.6 A 12 VDC 5 A 100 A 55 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 1.50A 1812 PTC Poly Halo-Free
Datasheet
2,334In Stock
1,500Expected 2026/05/27
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

1812L SMD/SMT SMD/SMT 1.5 A 16 VDC 2.8 A 100 A 110 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 12V 1.60A POLY SURF MOUNT
Datasheet
2,283In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

1812L PCB Mount SMD/SMT 1.6 A 12 VDC 2.8 A 100 A 100 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1812 6V 1.6A
Datasheet
2,496In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

1812L SMD/SMT SMD/SMT 1.6 A 8 VDC 2.8 A 100 A 100 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 8V 1812 2.0A POLYFUSE SMD THIN
Datasheet
2,243In Stock
2,000Expected 2026/04/27
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,000

1812L SMD/SMT SMD/SMT 2 A 8 VDC 3.5 A 100 A 70 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 16V POLY SURF
Datasheet
2,854In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

1812L SMD/SMT SMD/SMT 2.6 A 16 VDC 5 A 100 A 50 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 8V 1812 2.6A 8V 1812 2.6A
Datasheet
2,118In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,500

1812L PCB Mount SMD/SMT 2.6 A 8 VDC 5.2 A 100 A 47 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 6V POLY SURF MOUNT 1812 3.0A
Datasheet
233In Stock
1,000Expected 2026/04/16
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

1812L SMD/SMT SMD/SMT 3 A 6 VDC 5 A 100 A 40 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 15V .5A
Datasheet
Non-Stocked
Min.: 8,000
Mult.: 8,000
Reel: 8,000

1812L SMD/SMT SMD/SMT 500 mA 15 V 1 A 40 A 1 Ohms 1812 (4532 metric) - 40 C + 85 C Reel
Littelfuse Resettable Fuses - PPTC 13.2V .75A
Datasheet
Non-Stocked
Min.: 8,000
Mult.: 8,000
Reel: 8,000

1812L SMD/SMT SMD/SMT 750 mA 13.2 V 1.5 A 40 A 420 mOhms 1812 (4532 metric) - 40 C + 85 C Reel