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: 233
Select Image Part # Mfr. Description Datasheet Availability Pricing (JPY) 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 250VAC 6.3A .0088ohms 465 NANO2 6,204In Stock
Cut Tape
¥395.3
¥360.4
¥322.2
¥280.7
Reel
¥184.4
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 350VAC 1A .078ohms 885 NANO2 1,215In Stock
4,500On Order
Cut Tape
¥1,018.2
¥906.9
¥835.5
¥694.3
Reel
¥463.4
Min.: 1
Mult.: 1
: 1,500
885 Surface Mount Fuses Fast Blow 1 A 350 VAC 500 VDC 100 A, 100 A 10.86 mm x 4.78 mm - 40 C + 105 C Reel, Cut Tape, MouseReel 78 mOhms
Littelfuse Surface Mount Fuses 350VAC 2A .0322ohms 885 NANO2 2,211In Stock
Cut Tape
¥948.4
¥855.4
¥772.4
¥656.1
Reel
¥463.4
Min.: 1
Mult.: 1
: 1,500
885 Surface Mount Fuses Fast Blow 2 A 350 VAC 500 VDC 100 A, 100 A 10.86 mm x 4.78 mm - 40 C + 105 C Reel, Cut Tape, MouseReel 32.2 mOhms
Littelfuse Surface Mount Fuses 350VAC 4A .0152ohms 885 NANO2 4,644In Stock
Cut Tape
¥973.3
¥855.4
¥790.6
¥656.1
Reel
¥463.4
Min.: 1
Mult.: 1
: 1,500
885 Surface Mount Fuses Fast Blow 4 A 350 VAC 450 VDC 100 A, 100 A 10.86 mm x 4.78 mm - 40 C + 105 C Reel, Cut Tape, MouseReel 15.2 mOhms
Littelfuse Surface Mount Fuses 350VAC 2.5A .0267ohms 885 NANO2 1,690In Stock
Cut Tape
¥877
¥734.2
¥677.7
¥561.4
Reel
¥463.4
Min.: 1
Mult.: 1
: 1,500
885 Surface Mount Fuses Fast Blow 2.5 A 350 VAC 500 VDC 100 A, 100 A 10.86 mm x 4.78 mm - 40 C + 105 C Reel, Cut Tape, MouseReel 26.7 mOhms
Littelfuse Surface Mount Fuses 250VAC 0.5A .227ohms 462 NANO2 1,856In Stock
4,500Expected 4/29/2027
Cut Tape
¥666.1
¥553.1
¥511.6
¥423.6
Reel
¥269.1
Min.: 1
Mult.: 1
: 1,500
462 Surface Mount Fuses Time Delay / Slow Blow 500 mA 250 VAC 250 VDC 150 A, 150 A 10.5 mm x 4.5 mm - 40 C + 85 C Reel, Cut Tape, MouseReel 227 mOhms
Littelfuse Surface Mount Fuses 250VAC 3A .028ohms 443 NANO2 91In Stock
46,500On Order
Cut Tape
¥365.4
¥287.4
¥269.1
¥202.6
Reel
¥160.6
Min.: 1
Mult.: 1
: 1,500
443 Surface Mount Fuses Time Delay / Slow Blow 3 A 250 VAC 125 VDC 50 A, 100 A 10.08 mm x 3.05 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 28 mOhms
Littelfuse Surface Mount Fuses 250VAC 3.5A .019ohms 443 NANO2 1,449In Stock
Cut Tape
¥365.4
¥315.6
¥297.3
¥242.5
Reel
¥160.6
Min.: 1
Mult.: 1
: 1,500
443 Surface Mount Fuses Time Delay / Slow Blow 3.5 A 250 VAC 125 VDC 50 A, 100 A 10.08 mm x 3.05 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 19 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.16A 1.67ohms 448 NANO2
540In Stock
1,000Expected 12/7/2026
Cut Tape
¥780.7
¥712.6
¥662.7
¥543.1
Reel
¥382
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 160 mA 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.67 Ohms
Littelfuse Surface Mount Fuses 125VAC 0.375A .6155ohms 448 NANO2
660In Stock
Cut Tape
¥355.5
¥295.7
¥272.4
¥225.9
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 375 mA 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 615.5 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.63A .3125ohms 448 NANO2
43In Stock
3,000Expected 12/23/2026
Cut Tape
¥382
¥333.9
¥312.3
¥255.8
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 630 mA 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 312.5 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.75A .229ohms 448 NANO2
132In Stock
3,000On Order
Cut Tape
¥387
¥348.8
¥312.3
¥269.1
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 750 mA 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 229 mOhms
Littelfuse Surface Mount Fuses 125VAC 4A .01577ohms 448 NANO2
970In Stock
9,000On Order
Cut Tape
¥380.4
¥343.8
¥310.6
¥264.1
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 4 A 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 15.77 mOhms
Littelfuse Surface Mount Fuses 125VAC 7A .009ohms 448 NANO2
1,039In Stock
Cut Tape
¥368.7
¥335.5
¥300.6
¥262.4
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 7 A 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 9 mOhms
Littelfuse Surface Mount Fuses 125VAC 1.5A .06514ohms 448 NANO2
64In Stock
2,000Expected 2/11/2027
Cut Tape
¥402
¥363.8
¥323.9
¥279
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 15 A 65 VAC 65 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 65.14 mOhms
Littelfuse Surface Mount Fuses 125VAC 2.5A .02934ohms 448 NANO2
621In Stock
5,000Expected 12/7/2026
Cut Tape
¥393.7
¥338.8
¥315.6
¥259.1
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 2.5 A 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 29.34 mOhms
Littelfuse Surface Mount Fuses 125VAC 3.5A .021ohms 448 NANO2
422In Stock
Cut Tape
¥382
¥333.9
¥312.3
¥255.8
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 3.5 A 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 21 mOhms
Littelfuse Surface Mount Fuses 125VAC 6.3A .01044ohms 448 NANO2
1,209In Stock
Cut Tape
¥368.7
¥332.2
¥304
¥260.8
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 6.3 A 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 10.44 mOhms
Littelfuse Surface Mount Fuses 125VAC 1.25A .06619ohms 448 NANO2
865In Stock
Cut Tape
¥382
¥333.9
¥312.3
¥255.8
Reel
¥171.1
Min.: 1
Mult.: 1
: 1,000
448 Surface Mount Fuses Fast Blow 1.25 A 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 66.19 mOhms
Littelfuse Surface Mount Fuses 125VAC 2.5A .04ohms 449 NANO2
980In Stock
1,000Expected 2/25/2027
Cut Tape
¥536.5
¥466.7
¥441.8
¥355.5
Reel
¥239.2
Min.: 1
Mult.: 1
: 1,000
449 Surface Mount Fuses Time Delay / Slow Blow 2.5 A 125 VAC 125 VDC 50 A, 50 A 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
466In Stock
Cut Tape
¥521.6
¥455.1
¥430.2
¥347.1
Reel
¥239.2
Min.: 1
Mult.: 1
: 1,000
449 Surface Mount Fuses Time Delay / Slow Blow 3.5 A 125 VAC 125 VDC 50 A, 50 A 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 26.1 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.4A .4233ohms 451 NANO2 1,169In Stock
Cut Tape
¥378.7
¥330.5
¥310.6
¥254.1
Reel
¥169.4
Min.: 1
Mult.: 1
: 1,000
451 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 0.5A .3046ohms 451 NANO2 1,259In Stock
5,000Expected 3/4/2027
Cut Tape
¥363.8
¥330.5
¥310.6
¥229.2
Reel
¥169.4
Min.: 1
Mult.: 1
: 5,000
451 Surface Mount Ceramic Fuses Fast 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 304.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.63A .2022ohms 451 NANO2 1,286In Stock
6,000On Order
Cut Tape
¥390.3
¥342.2
¥315.6
¥262.4
Reel
¥169.4
Min.: 1
Mult.: 1
: 1,000
451 Surface Mount Ceramic Fuses Fast Blow 630 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 202.2 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.75A .1444ohms 451 NANO2 1,224In Stock
Cut Tape
¥418.6
¥348.8
¥322.2
¥267.4
Reel
¥169.4
Min.: 1
Mult.: 1
: 5,000
451 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