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.

Mga Resulta: 236
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Dami RoHS ECAD Model Series
Produkto
Uri ng Fuse
Rating ng Current
Rating ng Voltage AC
Rating ng Voltage DC
Interrupt Rating
Laki / Grupo ng Fuse
Minimum na Operating Temperature
Maximum na Operating Temperature
Packaging
Resistance
Littelfuse Surface Mount Fuses 125VAC 1.25A .06619ohms 448 NANO2
Datasheet
Mga Komento sa Produkto
1,356May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

448 Surface Mount Fuses Fast Blow 1.25 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 66.19 mOhms
Littelfuse Surface Mount Fuses 125VAC 3.15A .023ohms 448 NANO2
Datasheet
Mga Komento sa Produkto
768May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

448 Surface Mount Fuses Fast Blow 3.15 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 701.5 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.375A 1.513ohms 449 NANO2
Datasheet
Mga Komento sa Produkto
1,996Inoorder
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

449 Surface Mount Fuses Time Delay / Slow Blow 375 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.513 Ohms
Littelfuse Surface Mount Fuses 125VAC 0.5A .7633ohms 449 NANO2
Datasheet
Mga Komento sa Produkto
898May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

449 Surface Mount Fuses Time Delay / Slow Blow 500 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 763.3 mOhms
Littelfuse Surface Mount Fuses 125VAC 1.5A .1186ohms 449 NANO2
Datasheet
Mga Komento sa Produkto
980May Stock
2,000Inaasahan 3/24/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

449 Surface Mount Fuses Time Delay / Slow Blow 1.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 118.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 2.5A .04ohms 449 NANO2
Datasheet
Mga Komento sa Produkto
851May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

449 Surface Mount Fuses Time Delay / Slow Blow 2.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 40 mOhms
Littelfuse Surface Mount Fuses 125VAC 3.5A .0261ohms 449 NANO2
Datasheet
Mga Komento sa Produkto
26May Stock
1,000Inaasahan 3/27/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

449 Surface Mount Fuses Time Delay / Slow Blow 3.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 26.1 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.2A .8372ohms 451 NANO2
Datasheet
440May Stock
1,000Inaasahan 6/25/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 200 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 837.2 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.375A .4541ohms 451 NANO2
Datasheet
1,161May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 375 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 454.1 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.5A .3046ohms 451 NANO2
Datasheet
2,625May Stock
5,000Inaasahan 5/8/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 500 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 304.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.63A .2022ohms 451 NANO2
Datasheet
1,257May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 630 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 202.2 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.75A .1444ohms 451 NANO2
Datasheet
1,308May Stock
3,000Inaasahan 3/17/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 750 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 144.4 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.75A .1444ohms 451 NANO2
Datasheet
1,750May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 5,000

451 Surface Mount Ceramic Fuses Fast Blow 750 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 144.4 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.8A .1355ohms 451 NANO2
Datasheet
500May Stock
1,000Inaasahan 4/20/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 800 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 135.5 mOhms
Littelfuse Surface Mount Fuses 125VAC 2A .0367ohms 451 NANO2
Datasheet
867May Stock
5,000Inaasahan 3/17/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 5,000

451 Surface Mount Ceramic Fuses Fast Blow 2 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 36.7 mOhms
Littelfuse Surface Mount Fuses 125VAC 3A .0227ohms 451 NANO2
Datasheet
1,411May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 5,000

451 Surface Mount Ceramic Fuses Fast Blow 3 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 22.7 mOhms
Littelfuse Surface Mount Fuses 125VAC 4A .016ohms 451 NANO2
Datasheet
875May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 5,000

451 Surface Mount Ceramic Fuses Fast Blow 4 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 16 mOhms
Littelfuse Surface Mount Fuses 125VAC 7A .009ohms 451 NANO2
Datasheet
1,590May Stock
7,980Inoorder
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 7 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 400 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 9 mOhms
Littelfuse Surface Mount Fuses 125VAC 7A .009ohms 451 NANO2
Datasheet
1,482May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 5,000

451 Surface Mount Ceramic Fuses Fast Blow 7 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 400 A at 32 VDC 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 451 NANO2
Datasheet
1,526May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 1.6 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 58 mOhms
Littelfuse Surface Mount Fuses 65VAC 15A .0037ohms 451 NANO2
Datasheet
53May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 5,000

451 Surface Mount Ceramic Fuses Fast Blow 15 A 65 VAC 65 VDC 100 A at 65 VAC, 150 A at 65 VDC, 400 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 3.7 mOhms
Littelfuse Surface Mount Fuses 125VAC 2.5A .0286ohms 451 NANO2
Datasheet
1,446May Stock
1,000Inaasahan 5/14/2026
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 2.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 28.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 2.5A .0286ohms 451 NANO2
Datasheet
518May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 5,000

451 Surface Mount Ceramic Fuses Fast Blow 2.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 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 451 NANO2
Datasheet
1,344May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 3.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 20 mOhms
Littelfuse Surface Mount Fuses 125VAC 3.15A .0215ohms 451 NANO2
Datasheet
1,388May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
Reel: 1,000

451 Surface Mount Ceramic Fuses Fast Blow 3.15 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 21.5 mOhms