Surface Mount Fuses – Mouser South Africa

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452/454 Series SMT Fuses

Littelfuse 452/454 Series SMT Fuses are part of the NANO^2®Slo-Blo^® series fuse family, which features enhanced inrush withstand characteristics over existing NANO²Fast-Acting fuses. This "time delay" fuse design accommodates inrush currents that normally cause a fast-acting fuse to open, helping solve the nuisance “opening” problem. The compact 452/454 series provides low-temperature re-rating and contains models in a wide range of current ratings (from 0.375A to 12A). These Slo-Blo fuses can operate between -55°C and 125°C temperatures. Littelfuse 452/454 series fuses are ideal for game consoles, industrial equipment, computer servers, laptops, power supplies, and can serve as the AC line fuse in LED lighting applications.

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Part #

Surface Mount Fuses 72VAC 12A .0061ohms 452 NANO2

0452012.MRL
Littelfuse
1: $3.08
7,892In Stock

Mfr. Part No.
0452012.MRL

Mouser Part No
576-0452012.MRL

Littelfuse

Surface Mount Fuses 72VAC 12A .0061ohms 452 NANO2

Learn More

Datasheet

7,892In Stock

Cut Tape

$3.08

$2.77

$2.36

$1.94

Reel

$1.94

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

Surface Mount Ceramic Fuses

Time Delay / Slow Blow

12 A

72 VAC

60 VDC

50 A, 50 A

6.1 mm x 2.69 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

6.1 mOhms

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

045202.5MRL
Littelfuse
1: $3.13
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

$3.13

$2.71

$2.50

$2.08

View

Reel

$1.24

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: $2.90
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

$2.90

$2.67

$2.41

$2.08

View

Reel

$1.24

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: $3.02
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

$3.02

$2.66

$2.50

$2.04

View

Reel

$1.29

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 0.375A 1.2ohms 454 NANO2

0454.375MR
Littelfuse
1: $2.61
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

$2.61

$2.26

$2.08

$1.72

View

Reel

$1.26

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: $2.61
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

$2.61

$2.26

$2.08

$1.72

View

Reel

$1.16

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: $1.54
12,583In Stock
7,000Expected 2026/11/12

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 2026/11/12

Cut Tape

$1.54

$1.37

$1.28

$1.16

Reel

$1.16

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: $1.54
6,875In Stock
6,000Expected 2026/09/01

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 2026/09/01

Cut Tape

$1.54

$1.29

$1.17

$0.98

Reel

$0.98

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: $2.61
6,106In Stock
4,000Expected 2026/11/09

Mfr. Part No.
0454003.MR

Mouser Part No
576-0454003.MR

Littelfuse

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

Learn More

Datasheet

6,106In Stock

4,000Expected 2026/11/09

Cut Tape

$2.61

$2.26

$2.08

$1.71

View

Reel

$1.16

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

Surface Mount Fuses 125VAC 4A .0186ohms 454 NANO2

0454004.MR
Littelfuse
1: $2.51
2,254In Stock
4,000Expected 2026/10/07

Mfr. Part No.
0454004.MR

Mouser Part No
576-0454004.MR

Littelfuse

Surface Mount Fuses 125VAC 4A .0186ohms 454 NANO2

Learn More

Datasheet

2,254In Stock

4,000Expected 2026/10/07

Cut Tape

$2.51

$2.19

$2.06

$1.52

View

Reel

$1.16

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

Surface Mount Fuses 125VAC 5A .0136ohms 454 NANO2

0454005.MR
Littelfuse
1: $1.86
6,757In Stock
5,580Expected 2026/09/01

Mfr. Part No.
0454005.MR

Mouser Part No
576-0454005.MR

Littelfuse

Surface Mount Fuses 125VAC 5A .0136ohms 454 NANO2

Learn More

Datasheet

6,757In Stock

5,580Expected 2026/09/01

Cut Tape

$1.86

$1.67

$1.44

$1.26

$1.16

Reel

$1.16

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

Surface Mount Fuses 72VAC 7A .0105ohms 454 NANO2

0454007.MR
Littelfuse
1: $2.17
7,234In Stock

Mfr. Part No.
0454007.MR

Mouser Part No
576-0454007.MR

Littelfuse

Surface Mount Fuses 72VAC 7A .0105ohms 454 NANO2

Learn More

Datasheet

7,234In Stock

Cut Tape

$2.17

$1.91

$1.80

$1.49

View

Reel

$1.10

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

454

Surface Mount Ceramic Fuses

Time Delay / Slow Blow

7 A

72 VAC

75 VDC

50 A, 100 A

6.1 mm x 2.69 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

10.5 mOhms

Surface Mount Fuses 125VAC 1.5A .093ohms 454 NANO2

045401.5MR
Littelfuse
1: $2.61
4,354In Stock
3,000Expected 2027/02/01

Mfr. Part No.
045401.5MR

Mouser Part No
576-045401.5MR

Littelfuse

Surface Mount Fuses 125VAC 1.5A .093ohms 454 NANO2

Learn More

Datasheet

4,354In Stock

3,000Expected 2027/02/01

Cut Tape

$2.61

$2.26

$2.08

$1.67

View

Reel

$1.16

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

Surface Mount Fuses 72VAC 12A .0061ohms 454 NANO2

0454012.MR
Littelfuse
1: $3.23
2,480In Stock
2,000Expected 2027/01/25

Mfr. Part No.
0454012.MR

Mouser Part No
576-0454012.MR

Littelfuse

Surface Mount Fuses 72VAC 12A .0061ohms 454 NANO2

Learn More

Datasheet

2,480In Stock

2,000Expected 2027/01/25

Cut Tape

$3.23

$2.83

$2.61

$2.17

View

Reel

$1.31

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

454

Surface Mount Ceramic Fuses

Time Delay / Slow Blow

12 A

72 VAC

75 VDC

50 A, 100 A

6.1 mm x 2.69 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

6.1 mOhms

Surface Mount Fuses 125VAC 2.5A .045ohms 454 NANO2

045402.5MR
Littelfuse
1: $2.63
2,104In Stock

Mfr. Part No.
045402.5MR

Mouser Part No
576-045402.5MR

Littelfuse

Surface Mount Fuses 125VAC 2.5A .045ohms 454 NANO2

Learn More

Datasheet

2,104In Stock

Cut Tape

$2.63

$2.26

$2.08

$1.72

View

Reel

$1.12

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

Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2

0452.375MRL
Littelfuse
1: $2.83
160In Stock
8,000On Order

Mfr. Part No.
0452.375MRL

Mouser Part No
576-0452.375MRL

Littelfuse

Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2

Learn More

Datasheet

160In Stock

8,000On Order

Cut Tape

$2.83

$2.63

$2.28

$1.88

View

Reel

$1.24

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

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 0.375A 1.2ohms 452 NANO2

0452.375MRSN
Littelfuse
1: $2.40
27In Stock
2,000Expected 2026/10/07

Mfr. Part No.
0452.375MRSN

Mouser Part No
576-0452.375MRSN

Littelfuse

Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2

Learn More

Datasheet

27In Stock

2,000Expected 2026/10/07

Cut Tape

$2.40

$2.17

$2.07

$1.67

View

Reel

$1.04

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

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 452 NANO2

0452.500MRSN
Littelfuse
1: $2.40
1,000In Stock

Mfr. Part No.
0452.500MRSN

Mouser Part No
576-0452.500MRSN

Littelfuse

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

Learn More

Datasheet

1,000In Stock

Cut Tape

$2.40

$2.17

$2.07

$1.67

View

Reel

$1.15

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

Reel, Cut Tape, MouseReel

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

0452.500NRL
Littelfuse
1: $3.02
464In Stock

Mfr. Part No.
0452.500NRL

Mouser Part No
576-0452.500NRL

Littelfuse

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

Learn More

Datasheet

464In Stock

Cut Tape

$3.02

$2.66

$2.26

$1.87

View

Reel

$1.24

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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 1A .225ohms 452 NANO2

0452001.MRSN
Littelfuse
1: $2.40
968In Stock
1,000Expected 2026/11/26

Mfr. Part No.
0452001.MRSN

Mouser Part No
576-0452001.MRSN

Littelfuse

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

Learn More

Datasheet

968In Stock

1,000Expected 2026/11/26

Cut Tape

$2.40

$2.17

$2.07

$1.67

Reel

$1.09

View

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

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.MRSN
Littelfuse
1: $2.47
317In Stock
2,000Expected 2027/02/01

Mfr. Part No.
0452002.MRSN

Mouser Part No
576-0452002.MRSN

Littelfuse

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

Learn More

Datasheet

317In Stock

2,000Expected 2027/02/01

Cut Tape

$2.47

$2.19

$2.09

$1.71

View

Reel

$1.04

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 4A .0186ohms 452 NANO2

0452004.MRSN
Littelfuse
1: $2.58
16In Stock
1,000Expected 2026/08/27

Mfr. Part No.
0452004.MRSN

Mouser Part No
576-0452004.MRSN

Littelfuse

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

Learn More

Datasheet

16In Stock

1,000Expected 2026/08/27

Cut Tape

$2.58

$2.24

$2.09

$1.71

View

Reel

$1.04

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 72VAC 7A .0105ohms 452 NANO2

0452007.MRSN
Littelfuse
1: $2.40
475In Stock
1,000Expected 2026/09/22

Mfr. Part No.
0452007.MRSN

Mouser Part No
576-0452007.MRSN

Littelfuse

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

Learn More

Datasheet

475In Stock

1,000Expected 2026/09/22

Cut Tape

$2.40

$2.17

$2.07

$1.67

View

Reel

$1.04

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 72VAC 8A .0088ohms 452 NANO2

0452008.MRSN
Littelfuse
1: $3.07
9In Stock

Mfr. Part No.
0452008.MRSN

Mouser Part No
576-0452008.MRSN

Littelfuse

Surface Mount Fuses 72VAC 8A .0088ohms 452 NANO2

Learn More

Datasheet

9In Stock

Cut Tape

$3.07

$2.79

$2.64

$1.93

View

Reel

$1.34

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

452

Surface Mount Ceramic Fuses

Time Delay / Slow Blow

8 A

72 VAC

60 VDC

50 A, 50 A

6.1 mm x 2.69 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

8.8 mOhms

Surface Mount Fuses 125VAC 0.75A .36ohms 454 NANO2

0454.750MR
Littelfuse
1: $2.42
931In Stock
1,000Expected 2026/09/03

Mfr. Part No.
0454.750MR

Mouser Part No
576-0454.750MR

Littelfuse

Surface Mount Fuses 125VAC 0.75A .36ohms 454 NANO2

Learn More

Datasheet

931In Stock

1,000Expected 2026/09/03

Cut Tape

$2.42

$2.21

$2.07

$1.69

View

Reel

$1.16

MouseReel Available

Min.: 1
Mult.: 1

: 1,000

454

Surface Mount Ceramic Fuses

Time Delay / Slow 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

360 mOhms

452/454 Series SMT Fuses

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