Surface Mount Fuses – Mouser United Kingdom

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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 250V_AC 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.

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Part #

Surface Mount Fuses 250VAC 1.6A .0448ohms 464 NANO2

046401.6DR
Littelfuse
1: £1.37
1,438In Stock

Mfr. Part No.
046401.6DR

Mouser Part No
576-046401.6DR

Littelfuse

Surface Mount Fuses 250VAC 1.6A .0448ohms 464 NANO2

Learn More

Datasheet

1,438In Stock

Cut Tape

£1.37

£1.20

£1.15

£0.934

View

Reel

£0.574

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

464

Surface Mount Ceramic Fuses

Fast Blow

1.6 A

250 VAC

250 VDC

100 A

12.1 mm x 4.5 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

44.8 mOhms

Surface Mount Fuses 125VAC 7A .009ohms 451 NANO2

0451007.NRL
Littelfuse
1: £1.60
1,389In Stock

Mfr. Part No.
0451007.NRL

Mouser Part No
576-0451007.NRL

Littelfuse

Surface Mount Fuses 125VAC 7A .009ohms 451 NANO2

Learn More

Datasheet

1,389In Stock

Cut Tape

£1.60

£1.46

£1.38

£1.12

View

Reel

£0.692

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

451

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

Surface Mount Fuses 250VAC 0.8A .13ohms 462 NANO2

46208000000
Littelfuse
1: £2.47
1,344In Stock

Mfr. Part No.
46208000000

Mouser Part No
576-46208000000

Littelfuse

Surface Mount Fuses 250VAC 0.8A .13ohms 462 NANO2

Learn More

Datasheet

1,344In Stock

Cut Tape

£2.47

£2.24

£2.17

£1.70

View

Reel

£1.11

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

462

Surface Mount Fuses

Time Delay / Slow Blow

800 mA

250 VAC

250 VDC

150 A, 150 A

10.5 mm x 4.5 mm

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

130 mOhms

Surface Mount Fuses 125VAC 3.15A .023ohms 448 NANO2

04483.15MR
Littelfuse
1: £1.61
725In Stock

Mfr. Part No.
04483.15MR

Mouser Part No
576-04483.15MR

Littelfuse

Surface Mount Fuses 125VAC 3.15A .023ohms 448 NANO2

Learn More

Datasheet

Product Comments

725In Stock

Cut Tape

£1.61

£1.34

£1.21

£1.02

Reel

£0.773

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

448

Surface Mount Fuses

Fast Blow

3.15 A

125 VAC

125 VDC

50 A, 50 A

6.1 mm x 2.69 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

701.5 mOhms

Surface Mount Fuses 125VAC 4A .016ohms 451 NANO2

0451004.NRL
Littelfuse
1: £1.60
795In Stock

Mfr. Part No.
0451004.NRL

Mouser Part No
576-0451004.NRL

Littelfuse

Surface Mount Fuses 125VAC 4A .016ohms 451 NANO2

Learn More

Datasheet

795In Stock

Cut Tape

£1.60

£1.46

£1.38

£1.12

View

Reel

£0.727

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

451

Surface Mount Ceramic Fuses

Fast 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

16 mOhms

Surface Mount Fuses 125VAC 0.062A 5.5ohms 451 NANO2

0451.062MRL
Littelfuse
1: £5.39
6,082In Stock

Mfr. Part No.
0451.062MRL

Mouser Part No
576-0451.062MRL

Littelfuse

Surface Mount Fuses 125VAC 0.062A 5.5ohms 451 NANO2

Learn More

Datasheet

6,082In Stock

Cut Tape

£5.39

£4.74

£4.37

£3.55

View

Reel

£2.38

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

451

Surface Mount Ceramic Fuses

Fast Blow

62 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

5.5 Ohms

Surface Mount Fuses 125VAC 0.25A .5765ohms 451 NANO2

0451.250MRL
Littelfuse
1: £1.52
19,607In Stock
20,000Expected 22/09/2026

Mfr. Part No.
0451.250MRL

Mouser Part No
576-0451.250MRL

Littelfuse

Surface Mount Fuses 125VAC 0.25A .5765ohms 451 NANO2

Learn More

Datasheet

19,607In Stock

20,000Expected 22/09/2026

Cut Tape

£1.52

£1.26

£1.20

£1.03

View

Reel

£0.692

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

451

Surface Mount Ceramic Fuses

Fast Blow

250 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

576.5 mOhms

Surface Mount Fuses 125VAC 2A .0367ohms 451 NANO2

0451002.MRL
Littelfuse
1: £1.26
50,879In Stock

Mfr. Part No.
0451002.MRL

Mouser Part No
576-0451002.MRL

Littelfuse

Surface Mount Fuses 125VAC 2A .0367ohms 451 NANO2

Learn More

Datasheet

50,879In Stock

Cut Tape

£1.26

£1.13

£0.934

£0.796

Reel

£0.416

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

451

Surface Mount Ceramic Fuses

Fast 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

36.7 mOhms

Surface Mount Fuses 125VAC 5A .0125ohms 451 NANO2

0451005.MRL
Littelfuse
1: £1.29
56,581In Stock

Mfr. Part No.
0451005.MRL

Mouser Part No
576-0451005.MRL

Littelfuse

Surface Mount Fuses 125VAC 5A .0125ohms 451 NANO2

Learn More

Datasheet

56,581In Stock

Cut Tape

£1.29

£1.15

£0.952

£0.803

Reel

£0.459

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

451

Surface Mount Ceramic Fuses

Fast 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

12.5 mOhms

Surface Mount Fuses 125VAC 10A .0056ohms 451 NANO2

0451010.MRL
Littelfuse
1: £1.92
35,304In Stock

Mfr. Part No.
0451010.MRL

Mouser Part No
576-0451010.MRL

Littelfuse

Surface Mount Fuses 125VAC 10A .0056ohms 451 NANO2

Learn More

Datasheet

35,304In Stock

Cut Tape

£1.92

£1.72

£1.46

£1.23

Reel

£0.668

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

451

Surface Mount Ceramic Fuses

Fast Blow

10 A

125 VAC

125 VDC

35 A, 50 A, 400 A

6.1 mm x 2.69 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

5.6 mOhms

Surface Mount Fuses 65VAC 15A .0037ohms 451 NANO2

0451015.MRL
Littelfuse
1: £1.90
26,502In Stock
29,000Expected 26/10/2026

Mfr. Part No.
0451015.MRL

Mouser Part No
576-0451015.MRL

Littelfuse

Surface Mount Fuses 65VAC 15A .0037ohms 451 NANO2

Learn More

Datasheet

26,502In Stock

29,000Expected 26/10/2026

Cut Tape

£1.90

£1.72

£1.43

£1.22

Reel

£0.689

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

451

Surface Mount Ceramic Fuses

Fast Blow

15 A

65 VAC

65 VDC

100 A, 150 A, 400 A

6.1 mm x 2.69 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

3.7 mOhms

Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2

0452.500MRL
Littelfuse
1: £2.04
11,128In Stock

Mfr. Part No.
0452.500MRL

Mouser Part No
576-0452.500MRL

Littelfuse

Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2

Learn More

Datasheet

11,128In Stock

Cut Tape

£2.04

£1.82

£1.71

£1.42

View

Reel

£0.934

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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

Surface Mount Fuses 125VAC 2A .0625ohms 452 NANO2

0452002.MRL
Littelfuse
1: £1.63
26,358In Stock
14,000Expected 26/11/2026

Mfr. Part No.
0452002.MRL

Mouser Part No
576-0452002.MRL

Littelfuse

Surface Mount Fuses 125VAC 2A .0625ohms 452 NANO2

Learn More

Datasheet

26,358In Stock

14,000Expected 26/11/2026

Cut Tape

£1.63

£1.48

£1.24

£1.05

Reel

£0.523

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

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

Surface Mount Fuses 125VAC 5A .0136ohms 452 NANO2

0452005.MRL
Littelfuse
1: £1.75
58,551In Stock
33,000Expected 29/09/2026

Mfr. Part No.
0452005.MRL

Mouser Part No
576-0452005.MRL

Littelfuse

Surface Mount Fuses 125VAC 5A .0136ohms 452 NANO2

Learn More

Datasheet

58,551In Stock

33,000Expected 29/09/2026

Cut Tape

£1.75

£1.56

£1.31

£1.10

View

Reel

£0.501

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

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

Surface Mount Fuses 72VAC 7A .0105ohms 452 NANO2

0452007.MRL
Littelfuse
1: £3.14
9,038In Stock

Mfr. Part No.
0452007.MRL

Mouser Part No
576-0452007.MRL

Littelfuse

Surface Mount Fuses 72VAC 7A .0105ohms 452 NANO2

Learn More

Datasheet

9,038In Stock

Cut Tape

£3.14

£2.69

£2.48

£2.06

View

Reel

£1.27

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

Surface Mount Ceramic Fuses

Time Delay / Slow Blow

7 A

72 VAC

60 VDC

50 A, 50 A

6.1 mm x 2.69 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

10.5 mOhms

Surface Mount Fuses 125VAC 20A .0023ohms 456 NANO2

0456020.ER
Littelfuse
1: £4.00
7,735In Stock

Mfr. Part No.
0456020.ER

Mouser Part No
576-0456020.ER

Littelfuse

Surface Mount Fuses 125VAC 20A .0023ohms 456 NANO2

Learn More

Datasheet

7,735In Stock

Cut Tape

£4.00

£3.64

£3.13

£3.06

Reel

£3.06

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

456

Surface Mount Ceramic Fuses

Fast Blow

20 A

125 VAC

100 VDC

100 A, 300 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

2.3 mOhms

Surface Mount Fuses 125VAC 30A .00132ohms 456 NANO2

0456030.ER
Littelfuse
1: £3.23
32,970In Stock

Mfr. Part No.
0456030.ER

Mouser Part No
576-0456030.ER

Littelfuse

Surface Mount Fuses 125VAC 30A .00132ohms 456 NANO2

Learn More

Datasheet

32,970In Stock

Cut Tape

£3.23

£2.90

£2.73

£2.37

View

Reel

£1.93

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

456

Surface Mount Ceramic Fuses

Fast Blow

30 A

125 VAC

72 VDC

100 A, 500 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

1.32 mOhms

Surface Mount Fuses VAC 40A .00105ohms 456 NANO2

0456040.DR
Littelfuse
1: £4.49
19,009In Stock

Mfr. Part No.
0456040.DR

Mouser Part No
576-0456040.DR

Littelfuse

Surface Mount Fuses VAC 40A .00105ohms 456 NANO2

Learn More

Datasheet

19,009In Stock

Cut Tape

£4.49

£4.10

£3.56

£3.02

View

Reel

£2.38

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

456

Surface Mount Ceramic Fuses

Fast Blow

40 A

60 VDC

180 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

1.05 mOhms

Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2

0461002.ER
Littelfuse
1: £1.46
25,563In Stock

Mfr. Part No.
0461002.ER

Mouser Part No
576-0461002.ER

Littelfuse

Surface Mount Fuses 600VAC 2A .045ohms 461 NANO2

Learn More

Datasheet

25,563In Stock

Cut Tape

£1.46

£1.31

£1.19

£1.00

View

Reel

£0.728

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

461

Surface Mount Ceramic Fuses

Time Delay / Slow Blow

2 A

600 VAC

80 VDC

60 A

10.1 mm x 3.12 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

45 mOhms

Surface Mount Fuses 350VAC 3.15A .0196ohms 885 NANO2

08853.15DR
Littelfuse
1: £4.17
8,661In Stock

Mfr. Part No.
08853.15DR

Mouser Part No
576-08853.15DR

Littelfuse

Surface Mount Fuses 350VAC 3.15A .0196ohms 885 NANO2

Learn More

Datasheet

8,661In Stock

Cut Tape

£4.17

£3.87

£3.57

£2.93

View

Reel

£1.90

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

885

Surface Mount Fuses

Fast Blow

3.15 A

350 VAC

500 VDC

100 A, 100 A

10.86 mm x 4.78 mm

- 40 C

+ 105 C

Reel, Cut Tape, MouseReel

19.6 mOhms

Surface Mount Fuses 250VAC 0.5A .6ohms 443 NANO2

0443.500DR
Littelfuse
1: £1.12
4,500In Stock
27,000On Order

Mfr. Part No.
0443.500DR

Mouser Part No
576-0443.500DR

Littelfuse

Surface Mount Fuses 250VAC 0.5A .6ohms 443 NANO2

Learn More

Datasheet

4,500In Stock

27,000On Order

Cut Tape

£1.12

£0.995

£0.943

Reel

£0.943

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

500 mA

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

600 mOhms

Surface Mount Fuses 250VAC 0.75A .275ohms 443 NANO2

0443.750DR
Littelfuse
1: £1.54
4,060In Stock

Mfr. Part No.
0443.750DR

Mouser Part No
576-0443.750DR

Littelfuse

Surface Mount Fuses 250VAC 0.75A .275ohms 443 NANO2

Learn More

Datasheet

4,060In Stock

Cut Tape

£1.54

£1.37

£1.20

£1.03

View

Reel

£0.661

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

750 mA

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

275 mOhms

Surface Mount Fuses 250VAC 1A .18ohms 443 NANO2

0443001.DR
Littelfuse
1: £1.32
15,376In Stock

Mfr. Part No.
0443001.DR

Mouser Part No
576-0443001.DR

Littelfuse

Surface Mount Fuses 250VAC 1A .18ohms 443 NANO2

Learn More

Datasheet

15,376In Stock

Cut Tape

£1.32

£1.17

£1.04

£0.871

View

Reel

£0.638

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

1 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

180 mOhms

Surface Mount Fuses 250VAC 2A .052ohms 443 NANO2

0443002.DR
Littelfuse
1: £1.32
12,542In Stock

Mfr. Part No.
0443002.DR

Mouser Part No
576-0443002.DR

Littelfuse

Surface Mount Fuses 250VAC 2A .052ohms 443 NANO2

Learn More

Datasheet

12,542In Stock

Cut Tape

£1.32

£1.17

£0.978

£0.943

Reel

£0.943

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

2 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

52 mOhms

Surface Mount Fuses 250VAC 3A .028ohms 443 NANO2

0443003.DR
Littelfuse
1: £1.49
5,074In Stock
6,000Expected 31/08/2026

Mfr. Part No.
0443003.DR

Mouser Part No
576-0443003.DR

Littelfuse

Surface Mount Fuses 250VAC 3A .028ohms 443 NANO2

Learn More

Datasheet

5,074In Stock

6,000Expected 31/08/2026

Cut Tape

£1.49

£1.30

£1.22

£0.986

View

Reel

£0.661

MouseReel Available

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

NANO Fuses

Customer Service Office

Company

Resources

Support

62 mA
80 mA
100 mA
125 mA
160 mA
200 mA
250 mA
315 mA
375 mA
400 mA
500 mA
630 mA
750 mA
800 mA
1 A
1.25 A
1.5 A
1.6 A
2 A
2.5 A

1.05 mOhms
1.3 mOhms
1.32 mOhms
1.92 mOhms
2.3 mOhms
3.7 mOhms
3.94 mOhms
4.65 mOhms
4.9 mOhms
5.33 mOhms
5.6 mOhms
5.8 mOhms
7 mOhms
7.7 mOhms
7.8 mOhms
8.8 mOhms
9 mOhms
9.3 mOhms
9.6 mOhms
10.44 mOhms