Surface Mount Fuses – Mouser Singapore

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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 125VAC 1A .225ohms 452 NANO2

0452001.NRL
Littelfuse
1: $4.11
4,319In Stock

Mfr. Part No.
0452001.NRL

Mouser Part No
576-0452001.NRL

Littelfuse

Surface Mount Fuses 125VAC 1A .225ohms 452 NANO2

Learn More

Datasheet

4,319In Stock

Cut Tape

$4.11

$3.62

$3.40

$2.77

View

Reel

$1.65

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

452

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

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

0452002.NRL
Littelfuse
1: $4.03
5,168In Stock

Mfr. Part No.
0452002.NRL

Mouser Part No
576-0452002.NRL

Littelfuse

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

Learn More

Datasheet

5,168In Stock

Cut Tape

$4.03

$3.69

$3.30

$2.83

View

Reel

$1.65

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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 3A .034ohms 452 NANO2

0452003.NRL
Littelfuse
1: $4.11
3,433In Stock
10,000Expected 4/2/2027

Mfr. Part No.
0452003.NRL

Mouser Part No
576-0452003.NRL

Littelfuse

Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2

Learn More

Datasheet

3,433In Stock

10,000Expected 4/2/2027

Cut Tape

$4.11

$3.62

$3.40

$2.77

View

Reel

$1.65

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

452

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

Surface Mount Fuses 125VAC 4A .0186ohms 452 NANO2

0452004.MRL
Littelfuse
1: $2.95
13,793In Stock
15,000Expected 19/11/2026

Mfr. Part No.
0452004.MRL

Mouser Part No
576-0452004.MRL

Littelfuse

Surface Mount Fuses 125VAC 4A .0186ohms 452 NANO2

Learn More

Datasheet

13,793In Stock

15,000Expected 19/11/2026

Cut Tape

$2.95

$2.67

$2.30

$2.03

Reel

$0.907

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

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

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

0452005.NRL
Littelfuse
1: $4.26
2,564In Stock

Mfr. Part No.
0452005.NRL

Mouser Part No
576-0452005.NRL

Littelfuse

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

Learn More

Datasheet

2,564In Stock

Cut Tape

$4.26

$3.69

$3.40

$2.83

View

Reel

$1.65

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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 125VAC 1.5A .093ohms 452 NANO2

045201.5MRL
Littelfuse
1: $2.83
14,753In Stock
21,000Expected 7/9/2026

Mfr. Part No.
045201.5MRL

Mouser Part No
576-045201.5MRL

Littelfuse

Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2

Learn More

Datasheet

Product Comments

14,753In Stock

21,000Expected 7/9/2026

Cut Tape

$2.83

$2.53

$2.22

$1.93

View

Reel

$1.01

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

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

Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2

045201.5NRL
Littelfuse
1: $4.53
1,068In Stock
5,000Expected 21/9/2026

Mfr. Part No.
045201.5NRL

Mouser Part No
576-045201.5NRL

Littelfuse

Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2

Learn More

Datasheet

1,068In Stock

5,000Expected 21/9/2026

Cut Tape

$4.53

$3.77

$3.47

$2.88

View

Reel

$1.65

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

452

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

Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2

045202.5MRL
Littelfuse
1: $4.26
6,682In Stock

Mfr. Part No.
045202.5MRL

Mouser Part No
576-045202.5MRL

Littelfuse

Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2

Learn More

Datasheet

6,682In Stock

Cut Tape

$4.26

$3.69

$3.40

$2.83

View

Reel

$1.63

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

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

Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2

045203.5MRL
Littelfuse
1: $3.94
7,958In Stock

Mfr. Part No.
045203.5MRL

Mouser Part No
576-045203.5MRL

Littelfuse

Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2

Learn More

Datasheet

7,958In Stock

Cut Tape

$3.94

$3.64

$3.28

$2.83

Reel

$1.65

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

Surface Mount Ceramic Fuses

Time Delay / Slow 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

22.4 mOhms

Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2

045203.5NRL
Littelfuse
1: $4.11
3,060In Stock

Mfr. Part No.
045203.5NRL

Mouser Part No
576-045203.5NRL

Littelfuse

Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2

Learn More

Datasheet

3,060In Stock

Cut Tape

$4.11

$3.62

$3.40

$2.77

View

Reel

$1.75

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

452

Surface Mount Ceramic Fuses

Time Delay / Slow 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

22.4 mOhms

Surface Mount Fuses 125VAC 1A .078ohms 453 NANO2

0453001.MR
Littelfuse
1: $2.84
12,695In Stock
9,000Expected 26/10/2026

Mfr. Part No.
0453001.MR

Mouser Part No
576-0453001.MR

Littelfuse

Surface Mount Fuses 125VAC 1A .078ohms 453 NANO2

Learn More

Datasheet

12,695In Stock

9,000Expected 26/10/2026

Cut Tape

$2.84

$2.53

$2.26

$1.93

View

Reel

$1.23

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

Surface Mount Ceramic Fuses

Fast 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

78 mOhms

Surface Mount Fuses 125VAC 2A .0367ohms 453 NANO2

0453002.MR
Littelfuse
1: $2.09
11,256In Stock
2,900Expected 1/9/2026

Mfr. Part No.
0453002.MR

Mouser Part No
576-0453002.MR

Littelfuse

Surface Mount Fuses 125VAC 2A .0367ohms 453 NANO2

Learn More

Datasheet

11,256In Stock

2,900Expected 1/9/2026

Cut Tape

$2.09

$1.85

$1.55

$1.29

View

Reel

$1.05

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

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 3A .0227ohms 453 NANO2

0453003.MR
Littelfuse
1: $2.69
5,836In Stock

Mfr. Part No.
0453003.MR

Mouser Part No
576-0453003.MR

Littelfuse

Surface Mount Fuses 125VAC 3A .0227ohms 453 NANO2

Learn More

Datasheet

5,836In Stock

Cut Tape

$2.69

$2.35

$2.22

$1.86

View

Reel

$1.23

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

Surface Mount Ceramic Fuses

Fast 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

22.7 mOhms

Surface Mount Fuses 125VAC 4A .016ohms 453 NANO2

0453004.MR
Littelfuse
1: $2.92
2,806In Stock

Mfr. Part No.
0453004.MR

Mouser Part No
576-0453004.MR

Littelfuse

Surface Mount Fuses 125VAC 4A .016ohms 453 NANO2

Learn More

Datasheet

2,806In Stock

Cut Tape

$2.92

$2.53

$2.34

$1.94

View

Reel

$1.23

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

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 5A .0125ohms 453 NANO2

0453005.MR
Littelfuse
1: $2.18
5,946In Stock
10,710On Order

Mfr. Part No.
0453005.MR

Mouser Part No
576-0453005.MR

Littelfuse

Surface Mount Fuses 125VAC 5A .0125ohms 453 NANO2

Learn More

Datasheet

5,946In Stock

10,710On Order

Cut Tape

$2.18

$1.93

$1.66

$1.44

View

Reel

$1.08

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

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 8A .0077ohms 453 NANO2

0453008.MR
Littelfuse
1: $2.54
4,790In Stock

Mfr. Part No.
0453008.MR

Mouser Part No
576-0453008.MR

Littelfuse

Surface Mount Fuses 125VAC 8A .0077ohms 453 NANO2

Learn More

Datasheet

4,790In Stock

Cut Tape

$2.54

$2.26

$1.86

$1.65

View

Reel

$1.23

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

Surface Mount Ceramic Fuses

Fast Blow

8 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

7.7 mOhms

Surface Mount Fuses 125VAC 1.5A .063ohms 453 NANO2

045301.5MR
Littelfuse
1: $2.76
2,741In Stock
5,000Expected 1/9/2026

Mfr. Part No.
045301.5MR

Mouser Part No
576-045301.5MR

Littelfuse

Surface Mount Fuses 125VAC 1.5A .063ohms 453 NANO2

Learn More

Datasheet

2,741In Stock

5,000Expected 1/9/2026

Cut Tape

$2.76

$2.50

$2.19

$1.85

View

Reel

$1.23

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

Surface Mount Ceramic Fuses

Fast 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

63 mOhms

Surface Mount Fuses 125VAC 10A .0056ohms 453 NANO2

0453010.MR
Littelfuse
1: $3.24
14,207In Stock

Mfr. Part No.
0453010.MR

Mouser Part No
576-0453010.MR

Littelfuse

Surface Mount Fuses 125VAC 10A .0056ohms 453 NANO2

Learn More

Datasheet

14,207In Stock

Cut Tape

$3.24

$2.92

$2.54

$2.24

View

Reel

$1.71

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

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 12A .0049ohms 453 NANO2

0453012.MR
Littelfuse
1: $4.28
1,150In Stock
1,000Expected 7/10/2026

Mfr. Part No.
0453012.MR

Mouser Part No
576-0453012.MR

Littelfuse

Surface Mount Fuses 65VAC 12A .0049ohms 453 NANO2

Learn More

Datasheet

1,150In Stock

1,000Expected 7/10/2026

Cut Tape

$4.28

$3.84

$3.48

$2.94

View

Reel

$1.96

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

Surface Mount Ceramic Fuses

Fast Blow

12 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

4.9 mOhms

Surface Mount Fuses 65VAC 15A .0037ohms 453 NANO2

0453015.MR
Littelfuse
1: $4.13
3,221In Stock

Mfr. Part No.
0453015.MR

Mouser Part No
576-0453015.MR

Littelfuse

Surface Mount Fuses 65VAC 15A .0037ohms 453 NANO2

Learn More

Datasheet

3,221In Stock

Cut Tape

$4.13

$3.73

$3.26

$2.62

View

Reel

$1.96

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

453

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

63 mOhms

Surface Mount Fuses 125VAC 0.375A 1.2ohms 454 NANO2

0454.375MR
Littelfuse
1: $3.55
1,477In Stock

Mfr. Part No.
0454.375MR

Mouser Part No
576-0454.375MR

Littelfuse

Surface Mount Fuses 125VAC 0.375A 1.2ohms 454 NANO2

Learn More

Datasheet

1,477In Stock

Cut Tape

$3.55

$3.06

$2.83

$2.34

View

Reel

$1.52

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

454

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

Surface Mount Fuses 125VAC 0.5A .7ohms 454 NANO2

0454.500MR
Littelfuse
1: $3.55
2,103In Stock

Mfr. Part No.
0454.500MR

Mouser Part No
576-0454.500MR

Littelfuse

Surface Mount Fuses 125VAC 0.5A .7ohms 454 NANO2

Learn More

Datasheet

2,103In Stock

Cut Tape

$3.55

$3.06

$2.83

$2.34

View

Reel

$1.52

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

454

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 1A .225ohms 454 NANO2

0454001.MR
Littelfuse
1: $2.08
12,583In Stock
7,000Expected 12/11/2026

Mfr. Part No.
0454001.MR

Mouser Part No
576-0454001.MR

Littelfuse

Surface Mount Fuses 125VAC 1A .225ohms 454 NANO2

Learn More

Datasheet

12,583In Stock

7,000Expected 12/11/2026

Cut Tape

$2.08

$1.86

$1.74

$1.44

$1.33

Reel

$1.33

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

Surface Mount Fuses 125VAC 2A .0625ohms 454 NANO2

0454002.MR
Littelfuse
1: $2.09
6,875In Stock
6,000Expected 1/9/2026

Mfr. Part No.
0454002.MR

Mouser Part No
576-0454002.MR

Littelfuse

Surface Mount Fuses 125VAC 2A .0625ohms 454 NANO2

Learn More

Datasheet

6,875In Stock

6,000Expected 1/9/2026

Cut Tape

$2.09

$1.75

$1.60

$1.33

Reel

$1.33

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

Surface Mount Fuses 125VAC 3A .034ohms 454 NANO2

0454003.MR
Littelfuse
1: $3.55
6,111In Stock
4,000Expected 9/11/2026

Mfr. Part No.
0454003.MR

Mouser Part No
576-0454003.MR

Littelfuse

Surface Mount Fuses 125VAC 3A .034ohms 454 NANO2

Learn More

Datasheet

6,111In Stock

4,000Expected 9/11/2026

Cut Tape

$3.55

$3.06

$2.83

$2.33

View

Reel

$1.52

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

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