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: 33
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Description Datasheet Availability Pricing (GBP) 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 16V 1812 1.10A POLYFUSE
Datasheet
28,977In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L PCB Mount SMD/SMT 1.1 A 16 VDC 1.95 A 100 A 180 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 16V 2.00A 1812 PTC POLY SMT
Datasheet
33,029In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L PCB Mount SMD/SMT 2 A 16 VDC 3.5 A 100 A 70 mOhms - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 0.10A 1812 PTC POLY SMT
Datasheet
4,414In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L PCB Mount SMD/SMT 100 mA 60 VDC 300 mA 10 A 15 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 0.14A 60V 1812
Datasheet
19,673In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L SMD/SMT SMD/SMT 140 mA 60 VDC 340 mA 10 A 6 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 0.20A 1812 PTC POLY SMT
Datasheet
4,207In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L SMD/SMT SMD/SMT 200 mA 60 VDC 400 mA 40 A 4.4 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 30V 1812 .200A POLYFUSE
Datasheet
16,189In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

1812L PCB Mount SMD/SMT 200 mA 30 V 400 mA 100 A 5 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 350MA-HD 10A SMD
Datasheet
9,286In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

1812L PCB Mount SMD/SMT 350 mA 60 VDC 700 mA 10 A 1.7 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 30V POLY SURF MOUNT 1812 .500A
Datasheet
19,089In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

1812L SMD/SMT SMD/SMT 500 mA 30 VDC 1 A 100 A 1 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 60V 500MA-HD 100A SMD
Datasheet
15,688In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

1812L PCB Mount SMD/SMT 500 mA 60 VDC 1 A 10 A 1 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel


Littelfuse Resettable Fuses - PPTC 60V 500MA-HD 100A SMD
Datasheet
2,214In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

1812L SMD/SMT SMD/SMT 500 mA 60 VDC 1 A 10 A 1 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 24V 1812 .750A POLYFUSE
Datasheet
26,829In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L SMD/SMT SMD/SMT 750 mA 24 VDC 1.5 A 100 A 290 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 33V 1812 .750A POLYFUSE
Datasheet
31,277In Stock
34,500Expected 17/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L PCB Mount SMD/SMT 750 mA 33 VDC 1.5 A 20 A 400 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 33V 1.10A POLY SURF MOUNT
Datasheet
13,445In Stock
156,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

1812L PCB Mount SMD/SMT 1.1 A 33 VDC 1.95 A 20 A 200 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V 1812 1.50A POLYFUSE
Datasheet
6,186In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L SMD/SMT SMD/SMT 1.5 A 12 VDC 3 A 100 A 110 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 24V 1.5A-HD 40A MAX
Datasheet
17,259In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

1812L PCB Mount SMD/SMT 1.5 A 24 VDC 3 A 20 A 120 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 12V 1812 PTC POLY SMT
Datasheet
3,650In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L SMD/SMT SMD/SMT 2 A 12 VDC 3.5 A 100 A 70 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
6,232In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 6V POLY SURF MOUNT 1812 3.0A
Datasheet
3,093In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 1812 15V .5A
Datasheet
4,260In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

1812L SMD/SMT SMD/SMT 500 mA 15 VDC 1 A 100 A 1 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1812 13.2V 0.75A
Datasheet
4,314In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

1812L SMD/SMT SMD/SMT 750 mA 13.2 VDC 1.5 A 100 A 450 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 24V POLY 1812 HALOGEN-FREE 1.10A
Datasheet
4,031In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L PCB Mount SMD/SMT 1.1 A 24 VDC 1.95 A 20 A 200 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC 1812 8V 1.1A
Datasheet
7,590In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

1812L SMD/SMT SMD/SMT 1.1 A 8 VDC 2.2 A 100 A 210 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 16V POLY 1812 HALOGEN-FREE 1.25A
Datasheet
2,944In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

1812L SMD/SMT SMD/SMT 1.25 A 16 VDC 2.5 A 100 A 140 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 6V 1812 1.25A POLY SURF MOUNT
Datasheet
4,506In Stock
2,000Expected 29/06/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

1812L PCB Mount SMD/SMT 1.25 A 6 VDC 2.5 A 100 A 140 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
2,556In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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