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
Select Image Part # Mfr. 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 Packaging
Littelfuse Resettable Fuses - PPTC 60V 0.20A 1812 PTC POLY SMT 3.572In Stock
Cut Tape
Rp14.677
Rp14.512
Reel
Rp14.512
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 12V 1812 1.50A POLYFUSE 5.556In Stock
Cut Tape
Rp9.540
Rp8.659
Rp7.870
Rp6.861
Reel
Rp4.440
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 PTC 30V POLY 1812 HALOGEN-FREE .35A 19.675In Stock
Cut Tape
Rp35.224
Rp32.656
Rp26.969
Rp24.767
Reel
Rp17.282
Min.: 1
Mult.: 1
: 1.500
1812L SMD/SMT SMD/SMT 350 mA 30 VDC 750 mA 40 A 1.7 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Resettable Fuses - PPTC PTC 33V 1.10A POLY SURF MOUNT 92.394In Stock
104.000Expected 08/12/2026
Cut Tape
Rp11.375
Rp10.072
Rp8.604
Rp7.577
Reel
Rp5.210
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 60V 0.10A 1812 PTC POLY SMT 1.921In Stock
Cut Tape
Rp35.224
Rp27.152
Rp22.749
Rp22.015
Reel
Rp17.282
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 15.994In Stock
Cut Tape
Rp9.907
Rp9.008
Rp7.485
Rp6.861
Reel
Rp4.311
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 30V 1812 .200A POLYFUSE 21.401In Stock
Cut Tape
Rp9.907
Rp8.990
Rp7.485
Rp6.861
Reel
Rp4.220
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 4.031In Stock
12.670Expected 26/10/2026
Cut Tape
Rp18.713
Rp17.154
Rp13.631
Rp12.971
Reel
Rp9.100
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 60V 500MA-HD 100A SMD 19.640In Stock
14.000Expected 17/11/2026
Cut Tape
Rp18.713
Rp17.154
Rp14.236
Rp13.136
Reel
Rp8.586
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 33V 1812 .750A POLYFUSE 40.454In Stock
Cut Tape
Rp12.475
Rp11.411
Rp9.485
Rp8.751
Reel
Rp5.485
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 16V 1812 1.10A POLYFUSE 22.575In Stock
Cut Tape
Rp11.375
Rp10.365
Rp8.604
Rp7.944
Reel
Rp4.953
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 12V 1812 PTC POLY SMT 2.811In Stock
Cut Tape
Rp35.224
Rp32.106
Rp26.969
Rp24.400
Reel
Rp17.282
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 16V 2.00A 1812 PTC POLY SMT 18.534In Stock
Cut Tape
Rp18.896
Rp17.429
Rp14.475
Rp13.356
Reel
Rp8.714
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 PTC 12V POLY SURF MOUNT 1812 2.6A 3.042In Stock
Cut Tape
Rp18.896
Rp16.658
Rp13.503
Rp12.916
Reel
Rp8.733
Min.: 1
Mult.: 1
: 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 PTC 8V 1812 2.6A 8V 1812 2.6A 7.182In Stock
Cut Tape
Rp11.008
Rp10.035
Rp8.402
Rp7.504
Reel
Rp4.843
Min.: 1
Mult.: 1
: 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 30V POLY SURF MOUNT 1812 .500A 2.526In Stock
22.000Expected 01/12/2026
Cut Tape
Rp18.896
Rp17.429
Rp14.475
Rp13.356
Reel
Rp8.714
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 956In Stock
2.000Expected 06/10/2026
Cut Tape
Rp32.839
Rp30.271
Rp25.134
Rp23.299
Reel
Rp16.053
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 4.283In Stock
13.500Expected 08/10/2026
Cut Tape
Rp12.475
Rp11.411
Rp9.485
Rp8.751
Reel
Rp5.779
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 1812 13.2V 0.75A 3.027In Stock
8.000Expected 08/12/2026
Cut Tape
Rp10.090
Rp9.301
Rp7.724
Rp7.118
Reel
Rp4.697
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 1812 8V 1.1A 4.513In Stock
8.000Expected 27/01/2027
Cut Tape
Rp8.439
Rp7.705
Rp6.384
Rp5.907
Reel
Rp3.944
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 2.669In Stock
Cut Tape
Rp10.274
Rp8.843
Rp7.834
Rp6.678
Reel
Rp4.495
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 3.406In Stock
4.000Expected 30/12/2026
Cut Tape
Rp11.925
Rp10.989
Rp9.136
Rp8.329
Reel
Rp5.742
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 266In Stock
3.000Expected 08/12/2026
Cut Tape
Rp11.375
Rp10.109
Rp8.604
Rp7.944
Reel
Rp4.953
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
Littelfuse Resettable Fuses - PPTC 24V 1.5A-HD 40A MAX 686In Stock
13.000Expected 24/11/2026
Cut Tape
Rp12.475
Rp11.411
Rp9.522
Rp8.714
Reel
Rp6.091
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 8V 1.5A 4.910In Stock
Cut Tape
Rp10.090
Rp8.458
Rp7.724
Rp7.027
Reel
Rp4.385
Min.: 1
Mult.: 1
: 2.000
1812L SMD/SMT SMD/SMT 1.5 A 8 VDC 3 A 100 A 110 mOhms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel