Surface Mount Fuses – Mouser Singapore

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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 8A .0088ohms 452 NANO2

0452008.MRL
Littelfuse
1: $4.22
3,033In Stock
6,000Expected 6/10/2026

Mfr. Part No.
0452008.MRL

Mouser Part No
576-0452008.MRL

Littelfuse

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

Learn More

Datasheet

3,033In Stock

6,000Expected 6/10/2026

Cut Tape

$4.22

$3.82

$3.48

$2.27

Reel

$2.20

View

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 1.5A .093ohms 452 NANO2

045201.5MRL
Littelfuse
1: $3.06
7,918In Stock
28,000On Order

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

7,918In Stock

28,000On Order

Cut Tape

$3.06

$2.27

$1.75

$1.74

$1.54

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 72VAC 12A .0061ohms 452 NANO2

0452012.MRL
Littelfuse
1: $4.12
4,695In Stock
3,220Expected 10/8/2026

Mfr. Part No.
0452012.MRL

Mouser Part No
576-0452012.MRL

Littelfuse

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

Learn More

Datasheet

4,695In Stock

3,220Expected 10/8/2026

Cut Tape

$4.12

$3.70

$3.16

$2.62

View

Reel

$2.16

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: $3.84
7,042In 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

7,042In Stock

Cut Tape

$3.84

$3.50

$3.07

$2.58

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: $3.98
7,458In 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

7,458In Stock

Cut Tape

$3.98

$3.67

$3.22

$2.75

View

Reel

$1.63

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: $3.84
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

$3.84

$3.58

$3.40

$2.75

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 0.375A 1.2ohms 454 NANO2

0454.375MR
Littelfuse
1: $3.51
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

$3.51

$3.06

$2.77

$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: $3.28
2,338In 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

2,338In Stock

Cut Tape

$3.28

$2.95

$2.77

$2.23

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
6,735In Stock
13,000On Order

Mfr. Part No.
0454001.MR

Mouser Part No
576-0454001.MR

Littelfuse

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

Learn More

Datasheet

6,735In Stock

13,000On Order

Cut Tape

$2.08

$1.86

$1.74

$1.44

$1.31

Reel

$1.31

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: $2.12
7,418In Stock
6,000Expected 7/9/2026

Mfr. Part No.
0454002.MR

Mouser Part No
576-0454002.MR

Littelfuse

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

Learn More

Datasheet

7,418In Stock

6,000Expected 7/9/2026

Cut Tape

$2.12

$1.86

$1.74

$1.44

$1.31

Reel

$1.31

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: $3.56
3,192In Stock
7,000On Order

Mfr. Part No.
0454003.MR

Mouser Part No
576-0454003.MR

Littelfuse

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

Learn More

Datasheet

3,192In Stock

7,000On Order

Cut Tape

$3.56

$3.06

$2.83

$2.24

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

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

0454004.MR
Littelfuse
1: $3.20
2,424In Stock
4,000Expected 7/10/2026

Mfr. Part No.
0454004.MR

Mouser Part No
576-0454004.MR

Littelfuse

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

Learn More

Datasheet

2,424In Stock

4,000Expected 7/10/2026

Cut Tape

$3.20

$2.91

$2.77

$2.07

View

Reel

$1.52

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: $2.08
6,831In Stock
6,000Expected 13/10/2026

Mfr. Part No.
0454005.MR

Mouser Part No
576-0454005.MR

Littelfuse

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

Learn More

Datasheet

6,831In Stock

6,000Expected 13/10/2026

Cut Tape

$2.08

$1.86

$1.74

$1.44

View

Reel

$0.94

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: $2.96
3,387In Stock
5,000Expected 3/8/2026

Mfr. Part No.
0454007.MR

Mouser Part No
576-0454007.MR

Littelfuse

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

Learn More

Datasheet

3,387In Stock

5,000Expected 3/8/2026

Cut Tape

$2.96

$2.60

$2.45

$2.03

View

Reel

$1.26

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: $3.56
4,650In Stock

Mfr. Part No.
045401.5MR

Mouser Part No
576-045401.5MR

Littelfuse

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

Learn More

Datasheet

4,650In Stock

Cut Tape

$3.56

$3.06

$2.83

$2.28

View

Reel

$1.52

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: $4.16
3,580In Stock

Mfr. Part No.
0454012.MR

Mouser Part No
576-0454012.MR

Littelfuse

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

Learn More

Datasheet

3,580In Stock

Cut Tape

$4.16

$3.75

$3.52

$2.83

View

Reel

$1.71

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: $3.29
2,111In 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

2,111In Stock

Cut Tape

$3.29

$2.96

$2.77

$2.23

View

Reel

$1.52

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

0452.375MRSN
Littelfuse
1: $3.26
27In Stock
2,000Expected 7/10/2026

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 7/10/2026

Cut Tape

$3.26

$2.96

$2.82

$2.27

View

Reel

$1.36

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: $3.26
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

$3.26

$2.96

$2.82

$2.27

View

Reel

$1.56

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: $4.11
534In 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

534In Stock

Cut Tape

$4.11

$3.62

$3.07

$2.54

View

Reel

$1.65

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: $3.26
968In Stock
1,000Expected 20/1/2027

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 20/1/2027

Cut Tape

$3.26

$2.96

$2.82

$2.27

Reel

$1.48

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: $3.48
817In Stock

Mfr. Part No.
0452002.MRSN

Mouser Part No
576-0452002.MRSN

Littelfuse

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

Learn More

Datasheet

817In Stock

Cut Tape

$3.48

$3.03

$2.84

$2.33

View

Reel

$1.36

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: $3.51
195In Stock
1,000Expected 31/8/2026

Mfr. Part No.
0452004.MRSN

Mouser Part No
576-0452004.MRSN

Littelfuse

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

Learn More

Datasheet

195In Stock

1,000Expected 31/8/2026

Cut Tape

$3.51

$3.05

$2.84

$2.33

View

Reel

$1.36

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: $3.26
525In Stock
1,000Expected 22/9/2026

Mfr. Part No.
0452007.MRSN

Mouser Part No
576-0452007.MRSN

Littelfuse

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

Learn More

Datasheet

525In Stock

1,000Expected 22/9/2026

Cut Tape

$3.26

$2.96

$2.82

$2.27

View

Reel

$1.36

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

452/454 Series SMT Fuses

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