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 (EUR) 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 1A .225ohms 454 NANO2
Datasheet
12 593In Stock
7 000Expected 12/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

454 Surface Mount Ceramic Fuses Time Delay / Slow Blow 1 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 225 mOhms
Littelfuse Surface Mount Fuses 125VAC 2A .0625ohms 454 NANO2
Datasheet
7 198In Stock
6 000Expected 07/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

454 Surface Mount Ceramic Fuses Time Delay / Slow Blow 2 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 62.5 mOhms
Littelfuse Surface Mount Fuses 125VAC 3A .034ohms 454 NANO2
Datasheet
6 111In Stock
4 000Expected 09/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

454 Surface Mount Ceramic Fuses Time Delay / Slow Blow 3 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 34 mOhms
Littelfuse Surface Mount Fuses 125VAC 4A .0186ohms 454 NANO2
Datasheet
2 364In Stock
4 000Expected 07/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

454 Surface Mount Ceramic Fuses Time Delay / Slow Blow 4 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 18.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 5A .0136ohms 454 NANO2
Datasheet
6 719In Stock
6 000Expected 18/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

454 Surface Mount Ceramic Fuses Time Delay / Slow Blow 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 13.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 1.5A .093ohms 454 NANO2
Datasheet
4 364In Stock
3 000Expected 01/02/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

454 Surface Mount Ceramic Fuses Time Delay / Slow Blow 1.5 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 93 mOhms
Littelfuse Surface Mount Fuses 125VAC 2.5A .045ohms 454 NANO2
Datasheet
2 109In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

454 Surface Mount Ceramic Fuses Time Delay / Slow 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 45 mOhms
Littelfuse Surface Mount Fuses 50A 125V HI CURRENT
Datasheet
1 013In Stock
3 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

456SD Surface Mount Ceramic Fuses Fast Blow 50 A 125 VAC 75 VDC 100 A, 600 A 12.2 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.05 mOhms
Littelfuse Surface Mount Fuses 48VAC 1A .18ohms 458 NANO2
Datasheet
1 528In Stock
1 500Expected 18/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

458 Surface Mount Fuses Fast Blow 1 A 48 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 180 mOhms
Littelfuse Surface Mount Fuses 48VAC 2A .0695ohms 458 NANO2
Datasheet
6 676In Stock
7 500Expected 15/10/2026
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
3 196In 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 4A .032ohms 458 NANO2
Datasheet
5 448In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

458 Surface Mount Fuses Fast Blow 4 A 32 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 32 mOhms
Littelfuse Surface Mount Fuses 32VAC 5A .027ohms 458 NANO2
Datasheet
8 673In Stock
6 000Expected 14/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

458 Surface Mount Fuses Fast Blow 5 A 32 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 27 mOhms
Littelfuse Surface Mount Fuses 32VAC 8A .0058ohms 458 NANO2
Datasheet
5 486In Stock
7 500Expected 14/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

458 Surface Mount Fuses Fast Blow 8 A 32 VAC 63 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 5.8 mOhms
Littelfuse Surface Mount Fuses 48VAC 1.5A .099ohms 458 NANO2
Datasheet
1 811In Stock
4 500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

458 Surface Mount Fuses Fast Blow 1.5 A 48 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 99 mOhms
Littelfuse Surface Mount Fuses 32VAC 10A .00465ohms 458 NANO2
Datasheet
15 963In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

458 Surface Mount Fuses Fast Blow 10 A 32 VAC 63 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 4.65 mOhms
Littelfuse Surface Mount Fuses 48VAC 3.5A .0375ohms 458 NANO2
Datasheet
1 263In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

458 Surface Mount Fuses Fast Blow 3.5 A 48 VAC 75 VDC 50 A, 50 A 3.18 mm x 1.58 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 37.5 mOhms
Littelfuse Surface Mount Fuses 600VAC 0.5A .56ohms 461 NANO2
Datasheet
5 614In Stock
5 000Expected 03/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

461 Surface Mount Ceramic Fuses Time Delay / Slow Blow 500 mA 600 VAC 80 VDC 60 A 10.1 mm x 3.12 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 560 mOhms
Littelfuse Surface Mount Fuses 600VAC 1.25A .104ohms 461 NANO2
Datasheet
17 838In Stock
52 500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

461 Surface Mount Ceramic Fuses Time Delay / Slow Blow 1.25 A 600 VAC 80 VDC 60 A 10.1 mm x 3.12 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 104 mOhms
Littelfuse Surface Mount Fuses 250VAC 0.5A .2373ohms 464 NANO2
Datasheet
1 845In Stock
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 4A .0156ohms 464 NANO2
Datasheet
2 344In Stock
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 5A .0119ohms 464 NANO2
Datasheet
1 823In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

464 Surface Mount Ceramic Fuses Fast Blow 5 A 250 VAC 250 VDC 100 A 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 11.9 mOhms
Littelfuse Surface Mount Fuses 250VAC 5A .013ohms 465 NANO2
Datasheet
2 677In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

465 Surface Mount Ceramic Fuses Time Delay / Slow Blow 5 A 250 VAC 250 VDC 100 A 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 13 mOhms
Littelfuse Surface Mount Fuses 250VAC 6.3A .0088ohms 465 NANO2
Datasheet
7 079In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

465 Surface Mount Ceramic Fuses Time Delay / Slow 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 8.8 mOhms
Littelfuse Surface Mount Fuses 250VAC 3.15A .021ohms 465 NANO2
Datasheet
1 609In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

465 Surface Mount Ceramic Fuses Time Delay / Slow Blow 3.15 A 250 VAC 250 VDC 100 A 12.1 mm x 4.5 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 21 mOhms