Surface Mount Fuses – Mouser Canada

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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: $4.46
3,233In Stock
5,200On Order

Mfr. Part #
0452008.MRL

Mouser Part #
576-0452008.MRL

Littelfuse

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

Learn More

Datasheet

3,233In Stock

5,200On Order

Cut Tape

$4.46

$4.05

$3.69

$2.40

Reel

$2.33

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: $3.24
7,843In Stock
28,000On Order

Mfr. Part #
045201.5MRL

Mouser Part #
576-045201.5MRL

Littelfuse

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

Learn More

Datasheet

Product Comments

7,843In Stock

28,000On Order

Cut Tape

$3.24

$2.40

$1.86

$1.84

$1.63

Reel

$1.07

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: $4.80
1,068In Stock
5,000Expected 2026-09-21

Mfr. Part #
045201.5NRL

Mouser Part #
576-045201.5NRL

Littelfuse

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

Learn More

Datasheet

1,068In Stock

5,000Expected 2026-09-21

Cut Tape

$4.80

$3.99

$3.67

$3.05

View

Reel

$1.74

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: $4.36
7,894In Stock

Mfr. Part #
0452012.MRL

Mouser Part #
576-0452012.MRL

Littelfuse

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

Learn More

Datasheet

7,894In Stock

Cut Tape

$4.36

$3.92

$3.34

$2.78

View

Reel

$2.29

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: $4.06
7,042In Stock

Mfr. Part #
045202.5MRL

Mouser Part #
576-045202.5MRL

Littelfuse

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

Learn More

Datasheet

7,042In Stock

Cut Tape

$4.06

$3.70

$3.25

$2.74

View

Reel

$1.73

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: $4.22
7,458In Stock

Mfr. Part #
045203.5MRL

Mouser Part #
576-045203.5MRL

Littelfuse

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

Learn More

Datasheet

7,458In Stock

Cut Tape

$4.22

$3.89

$3.41

$2.91

View

Reel

$1.73

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: $4.06
3,060In Stock

Mfr. Part #
045203.5NRL

Mouser Part #
576-045203.5NRL

Littelfuse

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

Learn More

Datasheet

3,060In Stock

Cut Tape

$4.06

$3.79

$3.60

$2.91

View

Reel

$1.86

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: $3.72
1,477In Stock

Mfr. Part #
0454.375MR

Mouser Part #
576-0454.375MR

Littelfuse

Surface Mount Fuses 125VAC 0.375A 1.2ohms 454 NANO2

Learn More

Datasheet

1,477In Stock

Cut Tape

$3.72

$3.24

$2.94

$2.48

View

Reel

$1.61

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: $3.47
2,128In Stock

Mfr. Part #
0454.500MR

Mouser Part #
576-0454.500MR

Littelfuse

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

Learn More

Datasheet

2,128In Stock

Cut Tape

$3.47

$3.12

$2.94

$2.36

View

Reel

$1.61

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: $2.20
6,650In Stock
13,000On Order

Mfr. Part #
0454001.MR

Mouser Part #
576-0454001.MR

Littelfuse

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

Learn More

Datasheet

6,650In Stock

13,000On Order

Cut Tape

$2.20

$1.97

$1.84

$1.53

$1.38

Reel

$1.38

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: $2.25
7,318In Stock
6,000Expected 2026-09-07

Mfr. Part #
0454002.MR

Mouser Part #
576-0454002.MR

Littelfuse

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

Learn More

Datasheet

7,318In Stock

6,000Expected 2026-09-07

Cut Tape

$2.25

$1.97

$1.84

$1.53

$1.38

Reel

$1.38

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: $3.77
6,182In Stock
4,000Expected 2026-11-09

Mfr. Part #
0454003.MR

Mouser Part #
576-0454003.MR

Littelfuse

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

Learn More

Datasheet

6,182In Stock

4,000Expected 2026-11-09

Cut Tape

$3.77

$3.24

$3.00

$2.38

View

Reel

$1.61

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: $3.38
2,364In Stock
4,000Expected 2026-10-07

Mfr. Part #
0454004.MR

Mouser Part #
576-0454004.MR

Littelfuse

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

Learn More

Datasheet

2,364In Stock

4,000Expected 2026-10-07

Cut Tape

$3.38

$3.08

$2.94

$2.19

View

Reel

$1.61

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: $2.20
6,779In Stock
6,000Expected 2026-08-18

Mfr. Part #
0454005.MR

Mouser Part #
576-0454005.MR

Littelfuse

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

Learn More

Datasheet

6,779In Stock

6,000Expected 2026-08-18

Cut Tape

$2.20

$1.97

$1.84

$1.53

View

Reel

$0.995

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: $3.14
3,487In Stock
4,900Expected 2026-08-17

Mfr. Part #
0454007.MR

Mouser Part #
576-0454007.MR

Littelfuse

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

Learn More

Datasheet

3,487In Stock

4,900Expected 2026-08-17

Cut Tape

$3.14

$2.75

$2.59

$2.15

View

Reel

$1.34

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: $3.77
4,635In Stock

Mfr. Part #
045401.5MR

Mouser Part #
576-045401.5MR

Littelfuse

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

Learn More

Datasheet

4,635In Stock

Cut Tape

$3.77

$3.24

$3.00

$2.42

View

Reel

$1.61

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: $4.41
3,580In Stock

Mfr. Part #
0454012.MR

Mouser Part #
576-0454012.MR

Littelfuse

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

Learn More

Datasheet

3,580In Stock

Cut Tape

$4.41

$3.97

$3.73

$3.00

View

Reel

$1.81

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: $3.48
2,111In Stock

Mfr. Part #
045402.5MR

Mouser Part #
576-045402.5MR

Littelfuse

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

Learn More

Datasheet

2,111In Stock

Cut Tape

$3.48

$3.14

$2.94

$2.36

View

Reel

$1.61

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: $3.46
27In Stock
2,000Expected 2026-10-07

Mfr. Part #
0452.375MRSN

Mouser Part #
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

$3.46

$3.14

$2.98

$2.40

View

Reel

$1.44

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: $3.46
1,000In Stock

Mfr. Part #
0452.500MRSN

Mouser Part #
576-0452.500MRSN

Littelfuse

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

Learn More

Datasheet

1,000In Stock

Cut Tape

$3.46

$3.14

$2.98

$2.40

View

Reel

$1.66

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: $4.35
534In Stock

Mfr. Part #
0452.500NRL

Mouser Part #
576-0452.500NRL

Littelfuse

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

Learn More

Datasheet

534In Stock

Cut Tape

$4.35

$3.83

$3.25

$2.69

View

Reel

$1.74

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: $3.46
956In Stock
1,000Expected 2027-01-20

Mfr. Part #
0452001.MRSN

Mouser Part #
576-0452001.MRSN

Littelfuse

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

Learn More

Datasheet

956In Stock

1,000Expected 2027-01-20

Cut Tape

$3.46

$3.14

$2.98

$2.40

Reel

$1.57

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: $3.56
317In Stock

Mfr. Part #
0452002.MRSN

Mouser Part #
576-0452002.MRSN

Littelfuse

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

Learn More

Datasheet

317In Stock

Cut Tape

$3.56

$3.15

$3.01

$2.46

View

Reel

$1.44

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: $3.72
195In Stock
1,000Expected 2026-08-31

Mfr. Part #
0452004.MRSN

Mouser Part #
576-0452004.MRSN

Littelfuse

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

Learn More

Datasheet

195In Stock

1,000Expected 2026-08-31

Cut Tape

$3.72

$3.23

$3.01

$2.46

View

Reel

$1.44

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: $3.46
475In Stock
1,000Expected 2026-09-22

Mfr. Part #
0452007.MRSN

Mouser Part #
576-0452007.MRSN

Littelfuse

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

Learn More

Datasheet

475In Stock

1,000Expected 2026-09-22

Cut Tape

$3.46

$3.14

$2.98

$2.40

View

Reel

$1.44

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

Mouser®

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