4 A Fuses 1,332

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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

0672004.

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

8.86 J

Tin Lead

50 A

672

0.154 in (3.9 mm)

e0

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; UL

Fast

160004.MR

Littelfuse

Electric Fuse

Surface Mount

250 V

4 A

Wraparound

68.1 J

-55 °C (-67 °F)

Silver

50 A

4 h

122.5

Tape And Reel

0.398 in (10.1 mm)

0.123 in (3.12 mm)

e4

250 V

Nano

0.398 x 0.123 x 0.123 in (10.1 x 3.12 x 3.12 mm)

0.123 in (3.12 mm)

UL

125 °C (257 °F)

0407004.WR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

4 A

Wraparound

4.18 J

-55 °C (-67 °F)

Matte Tin Over Nickel

50 A

2 ms

Tape And Reel

0.126 in (3.2 mm)

0.064 in (1.63 mm)

e3

32 V

25 mΩ

1206

0.033 in (0.835 mm)

UL

150 °C (302 °F)

Time Lag

0230004.MXF16OP

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

148 J

-55 °C (-67 °F)

Matte Tin

400 A

Bulk

0.185 in (4.7 mm)

e3

0.185 x 0.57 in (4.7 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

0454004

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

End Cap

34.4 J

-55 °C (-67 °F)

Silver

50 A

Rated Breaking Capacity at 125 VDC: 50 A, Joule Integral Nom at 125 VDC: 34.4

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)

Slow

0253004.NXT3L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

0.11 in (2.8 mm)

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0253004.NRL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Tin

50 A

0253

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

0.103 in (2.61 mm)

e3

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

224004M

Littelfuse

Electric Fuse

Through Hole Mount

125 V

4 A

Pin Wire

9.4 J

Tin Lead

10 kA

224

Bulk

0.177 in (4.5 mm)

e0

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CSA; METI; PSE; UL

Fast

0218004.HXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

69.1 J

-55 °C (-67 °F)

Tin

40 A

Bulk

0.228 in (5.8 mm)

e3

0.228 x 0.886 in (5.8 x 22.5 mm)

0.886 in (22.5 mm)

CCC; CE; CSA; IEC; KC; PSE; SEMKO; UL; VDE

125 °C (257 °F)

Time Lag

0253004.MRT3L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Tin

50 A

0253

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

0.103 in (2.61 mm)

e3

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0251004.HXL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Tin

50 A

4 ms

Pre-Arcing Time: Open within 4 ms at 1000% Rated Current

Bulk

0.11 in (2.8 mm)

e3

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; CUL; PSE; TUV; UL

125 °C (257 °F)

Very Fast

235004

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

17.138 J

-55 °C (-67 °F)

Nickel

10 kA

Bulk; Tape And Reel

0.205 in (5.2 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Fast

0253004.MRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

2.45

Tape And Reel

0.11 in (2.8 mm)

Supplemental

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; TUV; UL

125 °C (257 °F)

Very Fast

0314004.VXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

4 A

End Cap

10.4 J

-55 °C (-67 °F)

Nickel

750 A

Rated Breaking Capacity at 125 VDC: 10000 A

10.4

Bulk

0.25 in (6.35 mm)

250 V

3AB

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Fast

040014000075

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

133.4 J

-40 °C (-40 °F)

Tin

130 A

20 ms

Bulk

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

TE5

0.315 in (8 mm)

CQC; CUL; KTL; PSE; UL; VDE

85 °C (185 °F)

Time Lag

0230004.DRT1SP

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

148 J

-55 °C (-67 °F)

Matte Tin

400 A

Tape And Reel

0.185 in (4.7 mm)

e3

0.185 x 0.57 in (4.7 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

0230004.DRT3SP

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

148 J

-55 °C (-67 °F)

Matte Tin

400 A

Tape And Reel

0.185 in (4.7 mm)

e3

0.185 x 0.57 in (4.7 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

0253004L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Pure Tin

50 A

253

Rated Breaking Capacity at 125 VDC: 300 A

0.095 in (2.41 mm)

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; METI; PSE; QPL; UL

125 °C (257 °F)

Very Fast

0225004.MXP

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

9.4 J

-55 °C (-67 °F)

Nickel

100 A

1 s

Bulk

0.189 in (4.8 mm)

2AG

0.587 in (14.9 mm)

CE, CSA, PSE, UL

125 °C (257 °F)

Fast

0312004VX

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

28.5 J

-55 °C (-67 °F)

Tin

200 A

312

Bulk

0.25 in (6.35 mm)

e3

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Fast

0665004.HXLL

Littelfuse

Electric Fuse

4 A

-40 °C (-40 °F)

50 A

4 h

67.2

0.335 in (8.5 mm)

250 V

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CSA, UL

85 °C (185 °F)

Time Lag

0216004.MRET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

14.995 J

-55 °C (-67 °F)

Tin

1.5 kA

14.995

Tape And Reel

0.228 in (5.8 mm)

e3

250 V

0.197 x 0.787 in (5 x 20 mm)

0.228 x 0.886 in (5.8 x 22.5 mm)

0.886 in (22.5 mm)

CCC; CE; CSA; IEC; KC; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Fast

3981400000

Littelfuse

Electric Fuse

Through Hole Mount

65 V

65 V

4 A

Pin Wire

40 J

-40 °C (-40 °F)

Tin

50 A

Rated Breaking Capacity at 65 VDC: 50 A

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

65 V

TE5

0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm)

0.315 in (8 mm)

UL

85 °C (185 °F)

Medium Time Lag

FM04A125V4A

Littelfuse

Electric Fuse

Through Hole Mount

125 V

4 A

Pin Wire

Tin Lead

0.102 in (2.59 mm)

e0

0.102 x 0.311 in (2.59 x 7.9 mm)

0.311 in (7.9 mm)

MIL-PRF-23419

0452004.L

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

End Cap

34.4 J

-55 °C (-67 °F)

Gold

50 A

452

Rated Breaking Capacity at 125 VDC: 50

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)

Slow

0251004.NR

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 4 ms at 1000% Rated Current

Tape And Reel

0.11 in (2.8 mm)

e3

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

37314000000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

3.5 J

-40 °C (-40 °F)

Tin

50 A

5 s

Ammo Pack; Tape

0.335 in (8.5 mm)

e3

250 V

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CSA; CUL; UL

85 °C (185 °F)

Very Fast

203004.HXG

Littelfuse

Electric Fuse

4 A

-55 °C (-67 °F)

50 A

4 h

8.8

0.372 in (9.45 mm)

0.25 in (6.35 mm)

250 V

14.8 mΩ

0.372 x 0.25 x 0.165 in (9.45 x 6.35 x 4.19 mm)

0.165 in (4.19 mm)

CSA; UL

125 °C (257 °F)

Time Lag

225004P

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

9.4 J

Tin

500 A

225

Bulk

0.177 in (4.5 mm)

e3

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CSA; METI; UL

Fast

MIN4BP

Littelfuse

Electric Fuse

Inline/Holder

32 V

4 A

Tab/Blade

17 J

-40 °C (-40 °F)

1 kA

30 ms

Bulk

0.429 in (10.9 mm)

0.15 in (3.8 mm)

0.346 in (8.8 mm)

UL

125 °C (257 °F)

0251004.NXT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 4 ms at 1000% Rated Current

Bulk

0.11 in (2.8 mm)

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0235004.HXEP

Littelfuse

Electric Fuse

Through Hole Mount

125 V

4 A

Wire

17.14 J

-55 °C (-67 °F)

10 kA

5 s

Bulk

0.197 in (5 mm)

125 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

125 °C (257 °F)

Fast

SPXI004.T

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

4 A

End Cap

57 J

30 kA

4 m

Bulk

0.406 in (10.31 mm)

3.205 in (81.41 mm)

CUL; TUV; UL

37214000431

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

126.4 J

-40 °C (-40 °F)

Matte Tin

40 A

20 ms

95

Bulk

0.335 in (8.5 mm)

e3

250 V

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; CE; CUL; KC; PSE; UL; VDE

85 °C (185 °F)

Time Lag

125.6785.4402

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

Tab/Blade

14.5 J

Silver

125

Rated Breaking Capacity at 125 VDC: 1000 A

0.469 in (11.9 mm)

0.15 in (3.8 mm)

e4

0.469 x 0.15 x 0.339 in (11.9 x 3.8 x 8.6 mm)

0.339 in (8.6 mm)

UL

0311004.H

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

4 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

3AG

1.25 in (31.75 mm)

Normal

0213004.MXGP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

226.505 J

-55 °C (-67 °F)

40 A

226.5

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

BSI, CCC, CE, CSA, PSE, UL, VDE

125 °C (257 °F)

Time Lag

0875004.MRET1P

Littelfuse

Electric Fuse

4 A

Pin Wire

-55 °C (-67 °F)

50 A

4 h

42.45

0.142 in (3.6 mm)

250 V

0.142 x 0.394 in (3.6 x 10 mm)

0.394 in (10 mm)

CSA, UL

125 °C (257 °F)

Time Lag

297004LXN

Littelfuse

Electric Fuse

4 A

Tab/Blade

-40 °C (-40 °F)

Silver

1 kA

17

0.429 in (10.9 mm)

0.15 in (3.8 mm)

e4

32 V

23.48 mΩ

0.429 x 0.15 x 0.346 in (10.9 x 3.8 x 8.8 mm)

0.346 in (8.8 mm)

UL

125 °C (257 °F)

0263004.HXT1L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

3.08 J

-55 °C (-67 °F)

Pure Tin

50 A

Bulk

0.155 in (3.94 mm)

0.155 x 0.28 in (3.94 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0440004.WRA

Littelfuse

Electric Fuse

Surface Mount

32 V

63 V

4 A

Wraparound

2.601 J

-55 °C (-67 °F)

Matte 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

0253004.NRT3L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

0.103 in (2.61 mm)

e3

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

80814000000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

4 A

Pin Wire

544.5 mJ

-65 °C (-85 °F)

Tin

200 A

10 s

Pre Arcing Time: Open within 10 s at 200% Rated Current

0.54

Ammo Pack; Tape

0.35 in (8.9 mm)

0.183 in (4.65 mm)

e3

250 V

TE5

0.35 x 0.183 x 0.348 in (8.9 x 4.65 x 8.85 mm)

0.348 in (8.85 mm)

CUL; PSE; UL

125 °C (257 °F)

Fast

SPXC004.LXS

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

4 A

End Cap

56 J

15 kA

4 m

Bulk

0.406 in (10.31 mm)

0.394 x 2.244 in (10 x 57 mm)

2.252 in (57.2 mm)

CE; UL

Fast

FLQ004

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

4 A

End Cap

10 kA

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

0388004.MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

28.5 J

-55 °C (-67 °F)

Tin

100 A

388

Bulk

0.275 in (6.99 mm)

e3

0.275 x 1.288 in (6.99 x 32.72 mm)

1.288 in (32.72 mm)

CE; KTL; PSE

125 °C (257 °F)

0673004.MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

28.6 J

50 A

4 h

28.6

Bulk

0.154 in (3.9 mm)

250 V

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; UL

Slow

0481004.HXL

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

4 A

End Cap

36 J

-55 °C (-67 °F)

300 A

5 m

0.839 in (21.3 mm)

0.228 in (5.8 mm)

125 V

Alarm; Indicator

0.772 in (19.6 mm)

CSA; UL

125 °C (257 °F)

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.