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

277004

Littelfuse

Electric Fuse

125 V

125 V

4 A

277

0473004.YRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

35 J

-55 °C (-67 °F)

Pure Tin

50 A

Tape And Reel

0.135 in (3.43 mm)

0.135 x 0.28 in (3.43 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Time Lag

0253004T

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

2.45 J

-55 °C (-67 °F)

Tin

50 A

253

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

0.095 in (2.41 mm)

e3

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

0215004.MXB

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

46.96 J

-55 °C (-67 °F)

1.5 kA

46.96

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)

125 °C (257 °F)

Time Lag

0675004.MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

28.1 J

Tin Lead

50 A

4 h

28.1

Bulk

0.154 in (3.9 mm)

e0

250 V

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; UL

Slow

0253004.NRT1L

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

Tape And Reel

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; TUV; UL

125 °C (257 °F)

Very Fast

LMF4

Littelfuse

Electric Fuse

Inline/Holder

300 V

4 A

End Cap

10 kA

0.61 in (15.49 mm)

0.61 x 1.82 in (15.49 x 46.23 mm)

1.82 in (46.23 mm)

CSA; UL

Time Delay

0251004.HA

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

Ammo Pack

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

0460004.ER

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

J Bend

35 J

-55 °C (-67 °F)

Tin

50 A

100 ms

Tape And Reel

0.285 in (7.24 mm)

0.17 in (4.32 mm)

e3

125 V

Pico

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; PSE; UL

125 °C (257 °F)

Slow

0213004

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

202 J

-55 °C (-67 °F)

Nickel

40 A

20 ms

Pre Arcing Time: Open within 0.02 s at 1000% Rated Current

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)

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

125 °C (257 °F)

Time Lag

37214000075

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

126.4 J

-40 °C (-40 °F)

40 A

20 ms

0.335 in (8.5 mm)

TR5

0.315 in (8 mm)

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

85 °C (185 °F)

Time Lag

0MIN004.VP

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)

0MIN004.V

Littelfuse

Electric Fuse

Inline/Holder

32 V

4 A

Tab/Blade

17 J

-40 °C (-40 °F)

1 kA

30 ms

Box

0.429 in (10.9 mm)

0.15 in (3.8 mm)

0.346 in (8.8 mm)

UL

125 °C (257 °F)

672004DRT4

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

8.86 J

50 A

5 s

Tape And Reel

0.154 in (3.9 mm)

0.142 x 0.394 in (3.6 x 10 mm)

0.433 in (11 mm)

CSA; UL

Fast

0ATO004.V

Littelfuse

Electric Fuse

Inline/Holder

32 V

4 A

Tab/Blade

14 J

-40 °C (-40 °F)

1 kA

100 ms

Box

0.752 in (19.1 mm)

0.201 in (5.1 mm)

0.484 in (12.3 mm)

CSA; UL

125 °C (257 °F)

0ATO004.ZXPRO

Littelfuse

Electric Fuse

Inline/Holder

32 V

4 A

Tab/Blade

14 J

-40 °C (-40 °F)

1 kA

100 ms

Bulk

0.752 in (19.1 mm)

0.201 in (5.1 mm)

0.484 in (12.3 mm)

CSA; UL

125 °C (257 °F)

0443004.DRLC

Littelfuse

Electric Fuse

Surface Mount

280 V

4 A

Wraparound

122.5 J

-55 °C (-67 °F)

50 A

2 m

Pre Arcing Time: Open within 120 s at 250% Rated Current

Tape And Reel

0.398 in (10.1 mm)

0.123 in (3.12 mm)

Nano

0.123 in (3.12 mm)

CUL; UL

125 °C (257 °F)

Slow

0ATO004.VP

Littelfuse

Electric Fuse

Inline/Holder

32 V

4 A

Tab/Blade

14 J

-40 °C (-40 °F)

1 kA

100 ms

Bulk

0.752 in (19.1 mm)

0.201 in (5.1 mm)

0.484 in (12.3 mm)

CSA; UL

125 °C (257 °F)

ATO4BP

Littelfuse

Electric Fuse

Inline/Holder

32 V

4 A

Tab/Blade

14 J

-40 °C (-40 °F)

1 kA

100 ms

Bulk

0.752 in (19.1 mm)

0.201 in (5.1 mm)

0.484 in (12.3 mm)

CSA; UL

125 °C (257 °F)

0297004.WXNV-CN

Littelfuse

Electric Fuse

Inline/Holder

32 V

4 A

Tab/Blade

31 J

-40 °C (-40 °F)

1 kA

30 ms

0.429 in (10.9 mm)

0.15 in (3.8 mm)

Mini

0.346 in (8.8 mm)

UL

125 °C (257 °F)

0521004.YAT1L

Littelfuse

Electric Fuse

Through Hole Mount

75 V

4 A

Pin Wire

2.02 J

-55 °C (-67 °F)

300 A

4 h

Ammo Pack

0.135 in (3.42 mm)

Pico

0.315 in (8 mm)

AEC-Q200; CUL; UL

125 °C (257 °F)

Very Fast

0521004.MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

75 V

4 A

Pin Wire

2.02 J

-55 °C (-67 °F)

300 A

4 h

Ammo Pack

0.135 in (3.42 mm)

Pico

0.315 in (8 mm)

AEC-Q200; CUL; UL

125 °C (257 °F)

Very Fast

0BLF004.T

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

10 kA

2 m

Bulk

0.406 in (10.31 mm)

5AG

1.5 in (38.1 mm)

CE; CSA; UL

Fast

0262004.0V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.235 in (5.97 mm)

Micro

0.29 in (7.37 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0422004.MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

3.6 J

-55 °C (-67 °F)

Matte Tin Over Nickel

50 A

5 s

Rated Breaking Capacity at 125 VDC: 100 A

Tape And Reel

0.246 in (6.25 mm)

0.098 in (2.5 mm)

e3

2410

0.088 in (2.24 mm)

CUL; TUV; UL

125 °C (257 °F)

Fast

0224004.HXP

Littelfuse

Electric Fuse

Through Hole Mount

125 V

4 A

Pin Wire

9.4 J

-55 °C (-67 °F)

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

0268004.0V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.235 in (5.97 mm)

Micro

0.29 in (7.37 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0422004.MRA

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

3.6 J

-55 °C (-67 °F)

50 A

5 s

Rated Breaking Capacity at 125 VDC: 100 A

Tape And Reel

0.246 in (6.25 mm)

0.098 in (2.5 mm)

0.088 in (2.24 mm)

AEC-Q200; CUL; PSE; TUV; UL

125 °C (257 °F)

Fast

FLSR004.TXID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

4 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.815 in (20.7 mm)

Indicator

5 in (127 mm)

CSA; UL

Time Delay

FLNR004.T

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

4 A

End Cap

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

0.563 in (14.3 mm)

2 in (50.8 mm)

CSA; UL

Time Delay

0278004.0V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

1.38 J

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.235 in (5.97 mm)

Micro

0.287 in (7.3 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

0273004.0V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

1.38 J

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.25 in (6.35 mm)

Micro

0.35 in (8.89 mm)

CSA; QPL; UL

85 °C (185 °F)

Very Fast

0265004.VXT

Littelfuse

Electric Fuse

Through Hole Mount

125 V

4 A

Pin Wire

-55 °C (-67 °F)

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

0.093 in (2.36 mm)

Pico

0.28 in (7.11 mm)

CSA; QPL

125 °C (257 °F)

Very Fast

FLA004

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

10 kA

12 s

Bulk

0.406 in (10.31 mm)

5AG

Indicator

1.5 in (38.1 mm)

UL

Time Delay

02134.0MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

226.505 J

-55 °C (-67 °F)

40 A

20 ms

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

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

125 °C (257 °F)

Time Lag

0279004.0V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

1.38 J

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.25 in (6.35 mm)

Micro

0.35 in (8.89 mm)

CSA; QPL; UL

85 °C (185 °F)

Very Fast

0266004.VXT

Littelfuse

Electric Fuse

Through Hole Mount

125 V

4 A

Pin Wire

-55 °C (-67 °F)

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

0.093 in (2.36 mm)

Pico

0.28 in (7.11 mm)

CSA; QPL

125 °C (257 °F)

Very Fast

0272004.0V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

1.38 J

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.235 in (5.97 mm)

Micro

0.287 in (7.3 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

0835004.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

110 J

-55 °C (-67 °F)

1.5 kA

10 ms

Bulk

0.217 in (5.5 mm)

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

CCC; CUL; KC; PSE; TUV; UL

125 °C (257 °F)

Time Lag

0FLA004.T

Littelfuse

Electric Fuse

Inline/Holder

125 V

4 A

End Cap

10 kA

12 s

Bulk

0.406 in (10.31 mm)

5AG

Indicator

1.5 in (38.1 mm)

UL

Time Delay

02134.0MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

226.505 J

-55 °C (-67 °F)

40 A

20 ms

Bulk

0.217 in (5.5 mm)

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

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

125 °C (257 °F)

Time Lag

0274004.0V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

1.38 J

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.25 in (6.35 mm)

Micro

0.35 in (8.89 mm)

CSA; QPL; UL

Very Fast

0BLS004.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

4 A

End Cap

10 kA

2 m

Bulk

0.406 in (10.31 mm)

0.394 x 1.378 in (10 x 35 mm)

1.375 in (34.925 mm)

CSA; UL

Fast

0273004.0H

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

4 A

Pin Wire

1.38 J

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.25 in (6.35 mm)

Micro

0.35 in (8.89 mm)

CSA; QPL; UL

85 °C (185 °F)

Very Fast

0835004.MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

End Cap

110 J

-55 °C (-67 °F)

1.5 kA

10 ms

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CCC; CUL; KC; PSE; TUV; UL

125 °C (257 °F)

Time Lag

01574.0DRT

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

34.4 J

-55 °C (-67 °F)

50 A

20 ms

Tape And Reel

0.256 in (6.5 mm)

0.106 in (2.69 mm)

Nano

0.106 in (2.69 mm)

CUL; PSE; UL

125 °C (257 °F)

Time Lag

0MIN004.ZXPRO

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)

37014000430

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

6.7 J

-40 °C (-40 °F)

Tin

40 A

20 ms

Ammo Pack; Tape

0.335 in (8.5 mm)

e3

TR5

0.315 in (8 mm)

CCC; CE; CUL; PSE; UL; VDE

85 °C (185 °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.