Wraparound Fuses 2,400+

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Part RoHS Manufacturer Circuit Protection Type Mounting Feature Rated AC Voltage Rated DC Voltage Rated Current Terminal Shape Nominal Joule Integral Minimum Operating Temperature Terminal Finish Rated Breaking Capacity Manufacturer Series Trip Time/Delay Additional Features Pre Arcing Rating (A2/s) Packing Method Body Length/Diameter Body Width Fuse Class JESD-609 Code Rated Voltage Resistance Minimum Pre Arcing Time Fuse Size Built-in Features Dimensions Body Height Reference Standard Maximum Operating Temperature Blow Characteristic

0407001.WRA

Littelfuse

Electric Fuse

Surface Mount

63 V

1 A

Wraparound

142 mJ

-55 °C (-67 °F)

50 A

50 ms

Tape And Reel

0.126 in (3.2 mm)

0.064 in (1.63 mm)

1206

0.033 in (0.835 mm)

AEC-Q200; CUL; UL

150 °C (302 °F)

R451002.NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

2 A

Wraparound

530 mJ

-55 °C (-67 °F)

Tin/Lead

50 A

5 s

Pre Arcing Time: Open within 5 s at 200% Rated Current

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

Nano

0.106 in (2.69 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0603SFV300F/32

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

Wraparound

35 A

0.069 in (1.75 mm)

0.037 in (0.95 mm)

1 ms

0603

0.019 in (0.48 mm)

UL

Very Fast

0438004.WRA

Littelfuse

Electric Fuse

Surface Mount

12 V

32 V

4 A

Wraparound

730 mJ

-55 °C (-67 °F)

Tin Over Nickel

50 A

5 s

Pre Arcing Time: Open within 5 s at 250% Rated Current

Tape And Reel

0.062 in (1.575 mm)

0.033 in (0.85 mm)

12 V

17.7 mΩ

0603

0.02 in (0.508 mm)

AEC-Q200; CSA; CUL; UL

150 °C (302 °F)

Fast

0453008NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

8 A

Wraparound

20.23 J

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

125 V

Nano

0.106 in (2.69 mm)

CSA; CUL; PSE; UL

125 °C (257 °F)

Very Fast

E77174-000

Littelfuse

Electric Fuse

Surface Mount

63 V

1.5 A

Wraparound

230 mJ

50 A

UL

125 °C (257 °F)

Slow

0157.100DR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

100 mA

Wraparound

1.38 mJ

-55 °C (-67 °F)

Gold

50 A

5 s

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

UL

125 °C (257 °F)

Very Fast

0453001

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1 A

Wraparound

459 mJ

-55 °C (-67 °F)

Silver

50 A

5 s

Rated Breaking Capacity at 32 VDC: 300 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

Nano

0.106 in (2.69 mm)

CSA; METI; PSE; UL

125 °C (257 °F)

Very Fast

0433.750

Littelfuse

Electric Fuse

Surface Mount

63 V

63 V

750 mA

Wraparound

17 mJ

-55 °C (-67 °F)

Tin/Lead with Nickel barrier

50 A

200 ms

Pre Arcing Time: Open within 0.2 s at 300% Rated Current

0.125 in (3.18 mm)

0.06 in (1.52 mm)

e0

63 V

1206

0.125 x 0.06 x 0.023 in (3.18 x 1.52 x 0.58 mm)

0.023 in (0.58 mm)

CSA; UL

90 °C (194 °F)

Very Fast

1206SFF250F/32-2

Littelfuse

Electric Fuse

Surface Mount

32 V

2.5 A

Wraparound

50 A

1206SFF250F/32-2

UL

125 °C (257 °F)

Fast

4170500000

Littelfuse

Electric Fuse

Surface Mount

125 V

60 V

500 mA

Wraparound

36 mJ

-55 °C (-67 °F)

50 A

Tape And Reel, Blister

0.236 in (6 mm)

0.098 in (2.5 mm)

5 s

2410

0.098 in (2.5 mm)

CSA; UL

125 °C (257 °F)

Very Fast

043803.5WR

Littelfuse

Electric Fuse

Surface Mount

12 V

32 V

3.5 A

Wraparound

475.2 mJ

-55 °C (-67 °F)

Tin with Nickel barrier

50 A

4 h

0.47

Tape And Reel

0.061 in (1.54 mm)

0.033 in (0.85 mm)

e3

32 V

20.3 mΩ

0603

0.061 x 0.033 x 0.02 in (1.54 x 0.85 x 0.5 mm)

0.02 in (0.5 mm)

CSA; UL

150 °C (302 °F)

Fast

046902.5WR

Littelfuse

Electric Fuse

Surface Mount

32 V

2.5 A

Wraparound

-55 °C (-67 °F)

Tin Silver Nickel

50 A

4 h

Tape And Reel

0.129 in (3.27 mm)

0.064 in (1.63 mm)

e2

32 V

1206

0.129 x 0.064 x 0.035 in (3.27 x 1.63 x 0.9 mm)

0.035 in (0.9 mm)

CSA; UL

150 °C (302 °F)

Slow

RF0337-000

Littelfuse

Electric Fuse

Surface Mount

32 V

1.5 A

Wraparound

180 mJ

50 A

UL

125 °C (257 °F)

Slow

0448004.MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

3.97 J

-55 °C (-67 °F)

Gold

50 A

5 s

3.9

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0603SFP400F/32

Littelfuse

Electric Fuse

Surface Mount

32 V

4 A

Wraparound

2.08 J

-55 °C (-67 °F)

50 A

0.069 in (1.75 mm)

0.037 in (0.95 mm)

200 µs

0603

0.037 in (0.95 mm)

UL

125 °C (257 °F)

048302.5DR

Littelfuse

Electric Fuse

Surface Mount

65 V

65 V

2.5 A

Wraparound

2.5 J

-55 °C (-67 °F)

Copper/Nickel/Tin

50 A

5 s

Pre Arcing Time: Open within 5 s at 250% Rated Current

Tape And Reel

0.13 in (3.302 mm)

0.062 in (1.575 mm)

e2

65 V

1206

0.062 in (1.5748 mm)

UL

125 °C (257 °F)

R451.250L

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

250 mA

Wraparound

11.26 mJ

-55 °C (-67 °F)

Gold with Nickel barrier

451

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0459.250

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

250 mA

Wraparound

10.6 mJ

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

0.285 in (7.24 mm)

0.17 in (4.32 mm)

e3

0.285 x 0.17 x 0.12 in (7.24 x 4.32 x 3.05 mm)

0.12 in (3.05 mm)

CSA; UL

125 °C (257 °F)

Very Fast

RF0437-000

Littelfuse

Electric Fuse

Surface Mount

32 V

1.5 A

Wraparound

110 mJ

50 A

RF0437-000

UL

125 °C (257 °F)

4181800000

Littelfuse

Electric Fuse

Surface Mount

75 V

60 V

8 A

Wraparound

18 J

-55 °C (-67 °F)

50 A

Tape And Reel, Blister

0.236 in (6 mm)

0.098 in (2.5 mm)

5 s

2410

0.098 in (2.5 mm)

CSA; UL

125 °C (257 °F)

Very Fast

04381.75WRA

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

1.75 A

Wraparound

144 mJ

-55 °C (-67 °F)

Matte Tin

50 A

5 s

Pre Arcing Time: Open within 5 s at 250% Rated Current

Tape And Reel

0.062 in (1.575 mm)

0.033 in (0.85 mm)

32 V

140.5 mΩ

0603

0.02 in (0.508 mm)

AEC-Q200; CSA; CUL; UL

150 °C (302 °F)

Fast

4182100000

Littelfuse

Electric Fuse

Surface Mount

75 V

60 V

10 A

Wraparound

24 J

-55 °C (-67 °F)

50 A

Tape And Reel, Blister

0.236 in (6 mm)

0.098 in (2.5 mm)

5 s

2410

0.098 in (2.5 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0451001.NRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1 A

Wraparound

602.9 mJ

-55 °C (-67 °F)

50 A

5 s

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CE; CSA; CUL; PSE; TUV; UL

125 °C (257 °F)

Very Fast

0451.315MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

315 mA

Wraparound

31.1 mJ

-55 °C (-67 °F)

Tin/Lead

50 A

4 h

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CE; CSA; UL

125 °C (257 °F)

Very Fast

045402.5NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

2.5 A

Wraparound

15 J

-55 °C (-67 °F)

Silver

50 A

2 ms

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; CUL; UL

125 °C (257 °F)

Slow

0454002.MRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

2 A

Wraparound

8.2 J

-55 °C (-67 °F)

50 A

2 ms

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

125 V

Nano

0.106 in (2.69 mm)

CSA; CUL; UL

125 °C (257 °F)

Slow

0434004.

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

4 A

Wraparound

352 mJ

-55 °C (-67 °F)

Tin Lead Over Nickel

35 A

Rated Breaking Capacity at 32 VDC: 35 A

0.063 in (1.6 mm)

0.032 in (0.813 mm)

e0

0.063 x 0.032 x 0.012 in (1.6 x 0.813 x 0.305 mm)

0.012 in (0.305 mm)

CSA; UL

90 °C (194 °F)

Very Fast

0451003.NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

Wraparound

1.65 J

-55 °C (-67 °F)

Tin/Lead

50 A

4 h

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Very Fast

0466.750

Littelfuse

Electric Fuse

Surface Mount

63 V

63 V

750 mA

Wraparound

27.6 mJ

-55 °C (-67 °F)

Matte Tin with Nickel barrier

50 A

Rated Breaking Capacity at 63 VDC: 50 A

0.125 in (3.18 mm)

0.06 in (1.52 mm)

e3

0.125 x 0.06 x 0.023 in (3.18 x 1.52 x 0.58 mm)

0.023 in (0.58 mm)

CSA; UL

90 °C (194 °F)

Very Fast

0453003.NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

Wraparound

1.65 J

-55 °C (-67 °F)

Silver

50 A

5 s

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; CUL; PSE; UL

125 °C (257 °F)

Very Fast

4171500000

Littelfuse

Electric Fuse

Surface Mount

125 V

60 V

5 A

Wraparound

8.1 J

-55 °C (-67 °F)

50 A

Tape And Reel, Blister

0.236 in (6 mm)

0.098 in (2.5 mm)

5 s

2410

0.098 in (2.5 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0453.375NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

375 mA

Wraparound

44.2 mJ

-55 °C (-67 °F)

Silver

50 A

5 s

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; CUL; UL

125 °C (257 °F)

Very Fast

0434004.NR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

4 A

Wraparound

352 mJ

-55 °C (-67 °F)

Tin

35 A

434

Rated Breaking Capacity at 32 VDC: 35 A

Tape And Reel

0.063 in (1.6 mm)

0.032 in (0.81 mm)

e3

0.063 x 0.032 x 0.012 in (1.6 x 0.81 x 0.31 mm)

0.012 in (0.31 mm)

CSA; UL

90 °C (194 °F)

Very Fast

045106.3NRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

6.3 A

Wraparound

9.17 J

-55 °C (-67 °F)

50 A

5 s

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; CUL; PSE; UL

125 °C (257 °F)

Very Fast

0603SFF300F/32-2

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

Wraparound

35 A

0603SFF300F/32-2

UL

125 °C (257 °F)

Fast

0453010.NRL

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

10 A

Wraparound

26.46 J

-55 °C (-67 °F)

Silver

35 A

5 s

Rated Breaking Capacity at 125 VDC: 50 A, Pre Arcing Time: Open within 5 s at 200% Rated Current

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0440.500WRA

Littelfuse

Electric Fuse

Surface Mount

63 V

63 V

500 mA

Wraparound

26.42 mJ

-55 °C (-67 °F)

Tin Over Nickel

50 A

5 s

Tape And Reel

0.126 in (3.2 mm)

0.064 in (1.63 mm)

e3

1206

0.126 x 0.064 x 0.033 in (3.2 x 1.63 x 0.835 mm)

0.033 in (0.835 mm)

AEC-Q200; CSA; CUL; UL

150 °C (302 °F)

Fast

R45101.6MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1.6 A

Wraparound

1.06 J

-55 °C (-67 °F)

Tin/Lead

50 A

5 s

Pre Arcing Time: Open within 5 s at 200% Rated Current

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

Nano

0.106 in (2.69 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0453008.NRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

8 A

Wraparound

20.23 J

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

5 s

Nano

0.106 in (2.69 mm)

CE; CSA; CUL; PSE; TUV; UL

125 °C (257 °F)

Very Fast

045303.5NRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3.5 A

Wraparound

2.469 J

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

5 s

Nano

0.106 in (2.69 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

F49457-000

Littelfuse

Electric Fuse

Surface Mount

32 V

500 mA

Wraparound

50 A

UL

125 °C (257 °F)

Fast

0454012.NR

Littelfuse

Electric Fuse

Surface Mount

72 V

75 V

12 A

Wraparound

260.46 J

-55 °C (-67 °F)

Silver

50 A

2 ms

Rated Breaking Capacity at 75 VDC: 100 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

Nano

0.106 in (2.69 mm)

CSA; CUL; UL

125 °C (257 °F)

Slow

0453004.MRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

3.152 J

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

5 s

Nano

0.106 in (2.69 mm)

CE; CSA; PSE; TUV; UL

125 °C (257 °F)

Very Fast

F97778-000

Littelfuse

Electric Fuse

Surface Mount

24 V

6 A

Wraparound

35 A

UL

125 °C (257 °F)

Fast

044102.5WRA

Littelfuse

Electric Fuse

Surface Mount

32 V

2.5 A

Wraparound

552 mJ

-55 °C (-67 °F)

Matte Tin

50 A

5 s

Tape And Reel

0.061 in (1.54 mm)

0.033 in (0.85 mm)

e3

0603

0.063 x 0.035 x 0.022 in (1.61 x 0.88 x 0.55 mm)

0.02 in (0.502 mm)

AEC-Q200; CSA; CUL; UL

150 °C (302 °F)

0448.375MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

375 mA

Wraparound

24 mJ

-55 °C (-67 °F)

Gold

50 A

5 s

0.024

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

125 V

Nano

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; UL

125 °C (257 °F)

Very Fast

04533.00MRL

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

Wraparound

1.65 J

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

Fuses

A fuse is an electrical safety device that is designed to protect an electrical circuit from damage caused by overcurrent. Fuses are commonly used in residential, commercial, and industrial electrical systems, and they are an important safety device that helps prevent electrical fires, equipment damage, and personal injury.

A fuse typically consists of a metal wire or filament that is enclosed in a fuse body, which is designed to protect the wire from damage. The fuse is connected in series with the electrical circuit, and when the current flowing through the circuit exceeds a preset level, the wire in the fuse will melt or blow, which opens the circuit and prevents further damage to the electrical system.

Fuses are available in a variety of types and sizes, and they can be classified based on their current rating, voltage rating, and speed of operation. Some common types of fuses include cartridge fuses, blade fuses, and plug fuses.

In addition to protecting electrical systems from overcurrent, fuses can also be used to protect electrical equipment and machinery from damage caused by short circuits or other types of electrical faults. They are a cost-effective and reliable method of electrical protection, and they are widely used in a variety of electrical applications.