400 mA Fuses 426

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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

1960400043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

2.4 J

-25 °C (-13 °F)

150 A

Tape And Reel

0.213 in (5.4 mm)

20 ms

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

BSI; CUL; IEC; SEMKO; UL; VDE

70 °C (158 °F)

Time Lag

3720400051

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

900 mJ

-40 °C (-40 °F)

Matte Tin

35 A

Bulk

0.335 in (8.5 mm)

e3

20 ms

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; KTL; SEMKO; UL; VDE

85 °C (185 °F)

Time Lag

0315.400MXBP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

1.35 J

-55 °C (-67 °F)

35 A

5 s

Bulk

0.275 in (6.985 mm)

3AG

1.275 in (32.39 mm)

CE; CSA; UL

125 °C (257 °F)

Slow

2010400040

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

280 mJ

-25 °C (-13 °F)

Matte Tin

80 A

Bulk

0.213 in (5.4 mm)

e3

5 ms

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

DIN

70 °C (158 °F)

Medium Time Lag

274.400

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

25.1 mJ

-55 °C (-67 °F)

10 kA

Rated Breaking Capacity at 125 VDC: 10000 A

0.25 in (6.35 mm)

0.25 x 0.35 in (6.35 x 8.89 mm)

0.35 in (8.89 mm)

CSA; QPL; UL

85 °C (185 °F)

Very Fast

3700400000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

25 mJ

-40 °C (-40 °F)

Matte Tin

35 A

370

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

e3

20 ms

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; SEMKO; UL; VDE

85 °C (185 °F)

Fast

3740400041

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

320 mJ

-40 °C (-40 °F)

Tin

50 A

Bulk

0.335 in (8.5 mm)

e3

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CSA; UL

85 °C (185 °F)

Time Lag

0673.400MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

73.5 mJ

50 A

4 h

0.073

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

239.400

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

1.49 J

-55 °C (-67 °F)

Nickel

35 A

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)

CSA; KTL; PSE; UL

125 °C (257 °F)

Time Lag

0326.400MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 mA

End Cap

1.33 J

-55 °C (-67 °F)

Nickel

100 A

5 s

Rated Breaking Capacity at 125 VDC: 10000 A

1.33

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; UL

125 °C (257 °F)

Time Delay

1930400002

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

130 mJ

-25 °C (-13 °F)

35 A

Bulk

0.205 in (5.2 mm)

20 ms

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CUL; DIN; IEC; SEMKO; VDE; UL

70 °C (158 °F)

Very Fast

3430400000

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

2.1 J

-25 °C (-13 °F)

35 A

Bulk

0.248 in (6.3 mm)

5 s

0.248 x 1.26 in (6.3 x 32 mm)

1.26 in (32 mm)

CSA; UL

70 °C (158 °F)

Time Delay

FLQ4/10

Littelfuse

Electric Fuse

Inline/Holder

500 V

400 mA

End Cap

10 kA

0.406 in (10.31 mm)

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Slow

1930400043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

130 mJ

-25 °C (-13 °F)

35 A

Tape And Reel

0.213 in (5.4 mm)

20 ms

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

CUL; DIN; IEC; SEMKO; VDE; UL

70 °C (158 °F)

Very Fast

0235.400P

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

58.45 mJ

-55 °C (-67 °F)

Nickel

35 A

235

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; UL

125 °C (257 °F)

Fast

3260.4MVXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 mA

End Cap

1.33 J

-55 °C (-67 °F)

Matte Tin

100 A

Rated Breaking Capacity at 125 VDC: 10000 A

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; UL

125 °C (257 °F)

Time Lag

0326.400MXCCP

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

400 mA

End Cap

-55 °C (-67 °F)

4 h

1.33

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, UL

125 °C (257 °F)

Time Lag

0491.400MAT1HF

Littelfuse

Electric Fuse

400 mA

Pin Wire

-55 °C (-67 °F)

4 h

0.11 in (2.8 mm)

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA, UL

125 °C (257 °F)

Very Fast

0219.400XAP

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

1.4 J

-55 °C (-67 °F)

Nickel

150 A

219XAP

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)

CCC; CSA; IEC; SEMKO; VDE

125 °C (257 °F)

Time Lag

0675.400

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

75 mJ

Tin Lead

50 A

675

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

Slow

0448.400

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

400 mA

End Cap

41.6 mJ

-55 °C (-67 °F)

Gold

50 A

Rated Breaking Capacity at 125 VDC: 50 A

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

0216.400MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

40 mJ

-55 °C (-67 °F)

Tin

1.2 kA

Bulk

0.236 in (6 mm)

e3

0.236 x 0.886 in (6 x 22.5 mm)

0.886 in (22.5 mm)

CCC; CE; CSA; SEMKO; UL; VDE

125 °C (257 °F)

Fast

325.400P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

1.33 J

Matte Tin

100 A

325P

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; CSA; PSE; UL

Slow

0218.400MRET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

1.325 J

-55 °C (-67 °F)

Tin

35 A

1.325

Tape And Reel

0.228 in (5.8 mm)

Supplemental

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; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0453.400MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

400 mA

Wraparound

55.1 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

0325.400MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

400 mA

Pin Wire

1.33 J

-55 °C (-67 °F)

Tin

100 A

5 s

Rated Breaking Capacity at 125 VDC: 10000 A

1.33

Bulk

0.275 in (6.985 mm)

e3

250 V

3AB

0.275 x 1.288 in (6.99 x 32.72 mm)

1.288 in (32.72 mm)

CE; CSA; UL

125 °C (257 °F)

Time Delay

0663.400HXSL

Littelfuse

Electric Fuse

400 mA

-40 °C (-40 °F)

35 A

1.1

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, SEMKO, UL, VDE

85 °C (185 °F)

Time Lag

37004000430

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

25 mJ

-40 °C (-40 °F)

Tin

35 A

20 ms

Ammo Pack; Tape

0.335 in (8.5 mm)

e3

TR5

0.315 in (8 mm)

CCC; CE; CUL; VDE; UL

85 °C (185 °F)

Fast

08750.400MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Wire

136 mJ

-55 °C (-67 °F)

Tin

50 A

1 m

Bulk

0.142 in (3.6 mm)

e3

0.142 x 0.394 in (3.6 x 10 mm)

0.394 in (10 mm)

CUL; UL

125 °C (257 °F)

Slow

37204000075

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

1.408 J

-40 °C (-40 °F)

35 A

20 ms

0.335 in (8.5 mm)

TR5

0.315 in (8 mm)

CCC; CE; CUL; KC; UL; VDE

85 °C (185 °F)

Time Lag

3914000000

Littelfuse

Electric Fuse

Through Hole Mount

65 V

65 V

400 mA

Pin Wire

38 mJ

-40 °C (-40 °F)

50 A

2 s

Rated Breaking Capacity at 65 VDC: 50 A

Ammo Pack

0.335 in (8.5 mm)

0.157 in (4 mm)

TE5

0.315 in (8 mm)

CSA, UL

125 °C (257 °F)

Fast

02620.400V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

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

02680.400V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

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

02740.400V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

25.1 mJ

-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

FLNR.400T

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 mA

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

02130.4MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

1.36 J

-55 °C (-67 °F)

35 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; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0BLS.400T

Littelfuse

Electric Fuse

Inline/Holder

600 V

400 mA

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

FLSR.400TXID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

400 mA

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

FLA.400

Littelfuse

Electric Fuse

Inline/Holder

125 V

400 mA

End Cap

10 kA

5 s

Bulk

0.406 in (10.31 mm)

5AG

Indicator

1.5 in (38.1 mm)

UL

Time Delay

02720.400V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

25.1 mJ

-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

02730.400V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

25.1 mJ

-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

0FLA.400T

Littelfuse

Electric Fuse

Inline/Holder

125 V

400 mA

End Cap

10 kA

5 s

Bulk

0.406 in (10.31 mm)

5AG

Indicator

1.5 in (38.1 mm)

UL

Time Delay

02780.400V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

25.1 mJ

-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

02790.400V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

25.1 mJ

-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

02730.400H

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

25.1 mJ

-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

LLSRK.400.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

400 mA

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

0.811 in (20.6 mm)

5 in (127 mm)

CE; CSA; UL; QPL

Time Delay

LLNRK.400.V

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 mA

End Cap

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

0.563 in (14.3 mm)

2 in (50.8 mm)

CE; CSA; UL; QPL

Time Delay

1940400043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

27 mJ

-25 °C (-13 °F)

1.5 kA

Tape And Reel

0.213 in (5.4 mm)

20 ms

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

CUL; DIN; IEC; SEMKO; UL; VDE

70 °C (158 °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.