NANO Fuses

Littelfuse NANO® Fuses are fast-acting, high-performance fuses available in a wide range of available current ratings. The portfolio includes 448 NANO2® SMF Fuses, which are fast-acting fuses available in current ratings from 62mA to 15A. The 443 NANO2 series features square surface-mount, time-lag devices with a 250VAC voltage rating. Littelfuse 449 NANO2 Slo-Blo® Fuses offer enhanced inrush withstand characteristics over NANO2 Fast-Acting Fuses. The 456 series is designed to support higher current requirements and is fully compatible with lead-free solder alloys. Littelfuse 456 fuses are ideal for storage system powers, cooling fan systems for PC servers, and base station power supplies. Littelfuse NANO Fuses include additional series as well.

Results: 230
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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
Product
Fuse Type
Current Rating
Voltage Rating AC
Voltage Rating DC
Interrupt Rating
Fuse Size/Group
Minimum Operating Temperature
Maximum Operating Temperature
Packaging
Resistance
Littelfuse Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2
Datasheet
145In Stock
8.000Expected 07/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 375 mA 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.2 Ohms
Littelfuse Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2
Datasheet
404In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5.000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 500 mA 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 700 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.16A 1.2157ohms 453 NANO2
Datasheet
4In Stock
1.000Expected 27/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 160 mA 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.2157 Ohms
Littelfuse Surface Mount Fuses 125VAC 0.2A .8372ohms 453 NANO2
Datasheet
347In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 200 mA 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 837.2 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.315A .3918ohms 453 NANO2
Datasheet
1.185In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 315 mA 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 391.8 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.375A .4541ohms 453 NANO2
Datasheet
675In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 375 mA 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 454.1 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.4A .4233ohms 453 NANO2
Datasheet
263In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 400 mA 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 423.3 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.75A .1444ohms 453 NANO2
Datasheet
89In Stock
1.000Expected 15/03/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 750 mA 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 144.4 mOhms
Littelfuse Surface Mount Fuses 125VAC 7A .009ohms 453 NANO2
Datasheet
474In Stock
3.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 7 A 125 VAC 125 VDC 50 A, 50 A, 400 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 9 mOhms
Littelfuse Surface Mount Fuses 125VAC 1.6A .058ohms 453 NANO2
Datasheet
1.133In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 1.6 A 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 58 mOhms
Littelfuse Surface Mount Fuses 125VAC 2.5A .0286ohms 453 NANO2
Datasheet
21In Stock
2.000Expected 04/03/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 2.5 A 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 28.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 3.5A .02ohms 453 NANO2
Datasheet
979In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 3.5 A 125 VAC 125 VDC 50 A, 50 A, 300 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 20 mOhms
Littelfuse Surface Mount Fuses 125VAC 6.3A .0096ohms 453 NANO2
Datasheet
759In Stock
3.000Expected 29/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

453 Surface Mount Ceramic Fuses Fast Blow 6.3 A 125 VAC 125 VDC 50 A, 50 A, 400 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 9.6 mOhms
Littelfuse Surface Mount Fuses 48VAC 2A .0695ohms 458 NANO2
Datasheet
256In Stock
18.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

458 Surface Mount Fuses Fast Blow 2 A 48 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 69.5 mOhms
Littelfuse Surface Mount Fuses 48VAC 3A .049ohms 458 NANO2
Datasheet
1.571In Stock
13.500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

458 Surface Mount Fuses Fast Blow 3 A 48 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 49 mOhms
Littelfuse Surface Mount Fuses 32VAC 7A .0175ohms 458 NANO2
Datasheet
91In Stock
3.000Expected 16/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

458 Surface Mount Fuses Fast Blow 7 A 32 VAC 63 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 17.5 mOhms
Littelfuse Surface Mount Fuses 48VAC 2.5A .06ohms 458 NANO2
Datasheet
55In Stock
3.000Expected 29/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

458 Surface Mount Fuses Fast Blow 2.5 A 48 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 60 mOhms
Littelfuse Surface Mount Fuses 48VAC 1.25A .125ohms 458 NANO2
Datasheet
337In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

458 Surface Mount Fuses Fast Blow 1.25 A 48 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 125 mOhms
Littelfuse Surface Mount Fuses 48VAC 3.15A .045ohms 458 NANO2
Datasheet
175In Stock
3.000Expected 23/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

458 Surface Mount Fuses Fast Blow 3.15 A 48 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 45 mOhms
Littelfuse Surface Mount Fuses 250VAC 0.5A .2373ohms 464 NANO2
Datasheet
1.440In Stock
1.500Expected 01/02/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

464 Surface Mount Ceramic Fuses Fast Blow 500 mA 250 VAC 250 VDC 100 A 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 237.3 mOhms
Littelfuse Surface Mount Fuses 250VAC 0.8A .1159ohms 464 NANO2
Datasheet
1.152In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

464 Surface Mount Ceramic Fuses Fast Blow 800 mA 250 VAC 250 VDC 100 A 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 115.9 mOhms
Littelfuse Surface Mount Fuses 250VAC 1A .0762ohms 464 NANO2
Datasheet
1.596In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

464 Surface Mount Ceramic Fuses Fast Blow 1 A 250 VAC 250 VDC 100 A 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 76.2 mOhms
Littelfuse Surface Mount Fuses 250VAC 2A .0354ohms 464 NANO2
Datasheet
701In Stock
3.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

464 Surface Mount Ceramic Fuses Fast Blow 2 A 250 VAC 250 VDC 100 A 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 35.4 mOhms
Littelfuse Surface Mount Fuses 250VAC 4A .0156ohms 464 NANO2
Datasheet
899In Stock
3.000Expected 27/01/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

464 Surface Mount Ceramic Fuses Fast Blow 4 A 250 VAC 250 VDC 100 A 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 15.6 mOhms
Littelfuse Surface Mount Fuses 250VAC 6.3A .0093ohms 464 NANO2
Datasheet
211In Stock
1.500Expected 18/01/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

464 Surface Mount Ceramic Fuses Fast Blow 6.3 A 250 VAC 250 VDC 100 A 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 9.3 mOhms