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

0491.400MRT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

-55 °C (-67 °F)

50 A

4 h

Tape And Reel

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

FLA4/10

Littelfuse

Electric Fuse

Inline/Holder

125 V

400 mA

End Cap

10 kA

0.406 in (10.31 mm)

Indicator

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

UL

Slow

0239.400P

Littelfuse

Electric Fuse

Inline/Holder

125 V

400 mA

End Cap

1.49 J

-55 °C (-67 °F)

Nickel

35 A

239

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)

Time Lag

0239.400MXBP

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

1.49 J

-55 °C (-67 °F)

Tin

35 A

4 h

1.4

Bulk

0.205 in (5.2 mm)

Supplemental

e3

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)

CE; CSA; KC; UL

125 °C (257 °F)

Time Lag

226.400

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

400 mA

Pin Wire

28 mJ

1.5 kA

226

0.207 in (5.25 mm)

0.207 x 0.886 in (5.25 x 22.5 mm)

0.886 in (22.5 mm)

CCC; CSA; IEC; KTL; SEMKO; SEV; UL; VDE

Fast

315.400

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

400 mA

Pin Wire

1.35 J

Tin/Lead

35 A

0.275 in (6.985 mm)

e0

0.275 x 1.275 in (6.985 x 32.385 mm)

1.275 in (32.385 mm)

CE; CSA; PSE; UL

Slow

37004000000

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

250 V

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; CE; CUL; VDE; UL

85 °C (185 °F)

Fast

LLSRK.400

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)

0.811 x 5 in (20.6 x 127 mm)

5 in (127 mm)

CSA; UL

Time Delay

39504000000

Littelfuse

Electric Fuse

Through Hole Mount

125 V

400 mA

Pin Wire

15 mJ

-40 °C (-40 °F)

Tin

100 A

1 m

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

125 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)

Fast

02170.4MXGP

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

125 mJ

-55 °C (-67 °F)

35 A

10 ms

Pre Arcing Time: Open within 10 ms at 400% Rated Current

Bulk

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

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

125 °C (257 °F)

Fast

02170.4MRET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

125 mJ

-55 °C (-67 °F)

35 A

10 ms

Pre Arcing Time: Open within 10 ms at 400% Rated Current

Tape And Reel

0.217 in (5.5 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

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

125 °C (257 °F)

Fast

02170.4MXBP

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

125 mJ

-55 °C (-67 °F)

35 A

10 ms

Pre Arcing Time: Open within 10 ms at 400% Rated Current

Bulk

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

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

125 °C (257 °F)

Fast

02170.4HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

125 mJ

-55 °C (-67 °F)

35 A

10 ms

Pre Arcing Time: Open within 10 ms at 400% Rated Current

Bulk

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

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

125 °C (257 °F)

Fast

0675.400DRT4

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

75 mJ

Tin Lead

50 A

4 h

0.075

Tape And Reel

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

0262.400V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

-55 °C (-67 °F)

Gold

10 kA

4 h

Bulk

0.235 in (5.97 mm)

e4

125 V

Micro

0.235 x 0.29 in (5.97 x 7.37 mm)

0.29 in (7.37 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

0326.400HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

400 mA

End Cap

1.33 J

-55 °C (-67 °F)

Nickel

100 A

4 h

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 Lag

0677.400MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

755 mJ

-55 °C (-67 °F)

Tin

35 A

20 ms

Bulk

0.153 in (3.89 mm)

e3

0.142 x 0.394 in (3.6 x 10 mm)

0.433 in (11 mm)

CSA; CQC; UL; VDE

125 °C (257 °F)

Time Lag

39504000440

Littelfuse

Electric Fuse

Through Hole Mount

125 V

400 mA

Pin Wire

15 mJ

-40 °C (-40 °F)

Tin

100 A

1 m

Bulk

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

125 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)

Fast

0315.400MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

1.35 J

-60 °C (-76 °F)

35 A

5 s

Bulk

0.275 in (6.99 mm)

3AG

1.273 x 0.275 in (32.34 x 6.98 mm)

1.288 in (32.72 mm)

CE; CSA; UL

125 °C (257 °F)

Time Lag

0216.400MXGP

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

40 mJ

-55 °C (-67 °F)

Matte Tin

1.5 kA

0216

Bulk

0.205 in (5.2 mm)

e3

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

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

125 °C (257 °F)

Fast

04910.400NAT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

-55 °C (-67 °F)

Pure Tin

50 A

300 ms

Pre-Arcing Time: Open within 0.3 s at 300% Rated Current

Ammo Pack

0.11 in (2.8 mm)

Pico

0.28 in (7.11 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0874.400MRET1P

Littelfuse

Electric Fuse

400 mA

Pin Wire

-55 °C (-67 °F)

50 A

4 h

0.12

Tape And Reel

0.142 in (3.6 mm)

250 V

0.142 x 0.394 in (3.6 x 10 mm)

0.394 in (10 mm)

UL

125 °C (257 °F)

Fast

0219.400MRAET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

1.4 J

-55 °C (-67 °F)

150 A

1.4

Tape And Reel

0.217 in (5.5 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.217 x 0.846 in (5.5 x 21.5 mm)

0.846 in (21.5 mm)

BSI, CCC, CE, CSA, UL, VDE

125 °C (257 °F)

Time Lag

235.400

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

58 mJ

-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)

CE; CSA; KTL; UL

125 °C (257 °F)

Fast

FLNR0.4ID

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 mA

End Cap

200 kA

0.563 in (14.3 mm)

Indicator

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Time Delay

04910.400MAT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

-55 °C (-67 °F)

Pure Tin

50 A

300 ms

Pre-Arcing Time: Open within 0.3 s at 300% Rated Current

Ammo Pack

0.11 in (2.8 mm)

Pico

0.28 in (7.11 mm)

CSA; UL

125 °C (257 °F)

Very Fast

262.400

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

400 mA

Tab/Blade

-55 °C (-67 °F)

Gold

10 kA

Rated Breaking Capacity at 125 VDC: 10000 A

0.235 in (5.97 mm)

e4

0.235 x 0.29 in (5.97 x 7.37 mm)

0.29 in (7.37 mm)

CSA; UL

125 °C (257 °F)

Very Fast

1910400040

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

110 mJ

-25 °C (-13 °F)

35 A

Bulk

0.213 in (5.4 mm)

5 s

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

CUL; UL

70 °C (158 °F)

Very Fast

37204000511

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

1.408 J

-40 °C (-40 °F)

Matte Tin

35 A

20 ms

0.9

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; UL; VDE

85 °C (185 °F)

Time Lag

1960400040

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

2.4 J

-25 °C (-13 °F)

150 A

Bulk

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

3560400002

Littelfuse

Electric Fuse

Inline/Holder

440 V

400 mA

End Cap

160 mJ

-25 °C (-13 °F)

Nickel

1 kA

Bulk

0.248 in (6.3 mm)

10 ms

0.248 x 1.26 in (6.3 x 32 mm)

1.26 in (32 mm)

70 °C (158 °F)

Time Lag

0215.400MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

400 mA

Pin Wire

1.325 J

-55 °C (-67 °F)

Tin

1.5 kA

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

1.325

Bulk

0.236 in (6 mm)

e3

250 V

0.197 x 0.787 in (5 x 20 mm)

0.236 x 0.886 in (6 x 22.5 mm)

0.886 in (22.5 mm)

CE; IEC; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0213.400XP

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

1.35 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)

CCC; CE; CSA; IEC; SEMKO; SEV; UL

125 °C (257 °F)

Time Lag

3030400013

Littelfuse

Electric Fuse

Through Hole Mount

125 V

63 V

400 mA

Pin Wire

25 mJ

-25 °C (-13 °F)

Matte Tin

50 A

Rated Breaking Capacity at 63 VDC: 60 A

0.025

Bulk

0.236 in (6 mm)

Supplemental

e3

125 V

5 s

Micro

0.236 x 0.315 in (6 x 8 mm)

0.315 in (8 mm)

UL

70 °C (158 °F)

Fast

20104000001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

280 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

FLSR.400

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

400 mA

200 kA

FLSR

Rated Breaking Capacity at 300 VDC: 20000 A

0.811 in (20.6 mm)

5 in (127 mm)

CSA; UL

Time Delay

0451.400MRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

400 mA

Wraparound

55.1 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)

CSA; CUL; UL

125 °C (257 °F)

Very Fast

0213.400P

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

1.36 J

-55 °C (-67 °F)

Tin

35 A

213P

Bulk; Tape And Reel

0.205 in (5.2 mm)

e3

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

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

125 °C (257 °F)

Time Lag

0491.400NRT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

-55 °C (-67 °F)

50 A

4 h

Tape And Reel

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

02170.4MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

125 mJ

-55 °C (-67 °F)

35 A

10 ms

Pre Arcing Time: Open within 10 ms at 400% Rated Current

Bulk

0.217 in (5.5 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

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

125 °C (257 °F)

Fast

3980400000

Littelfuse

Electric Fuse

Through Hole Mount

65 V

65 V

400 mA

Pin Wire

180 mJ

-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

0313.400HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

400 mA

End Cap

1.35 J

-55 °C (-67 °F)

Nickel

35 A

4 h

1.35

Bulk

0.25 in (6.35 mm)

Supplemental

250 V

3AG

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

FLM.400

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

400 mA

End Cap

10 kA

5 s

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

Bulk

0.406 in (10.31 mm)

250 V

0.394 x 1.496 in (10 x 38 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; QPL; UL

Time Delay

0662.400HXLL

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

400 mA

Pin Wire

44 mJ

-40 °C (-40 °F)

Tin

35 A

662

Rated Breaking Capacity at 250 VDC: 35 A

Bulk

0.335 in (8.5 mm)

e3

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CCC; KTL; PSE; UL; VDE

85 °C (185 °F)

Fast

0216.400MRET5

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

40 mJ

-55 °C (-67 °F)

Tin

1.2 kA

Tape And Reel

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

0274.400H

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

400 mA

Pin Wire

25.1 mJ

-55 °C (-67 °F)

Tin

10 kA

4 h

Bulk

0.25 in (6.35 mm)

e3

125 V

Micro

0.25 x 0.35 in (6.35 x 8.89 mm)

0.35 in (8.89 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

0451.400NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

400 mA

Wraparound

48.4 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

0218.400MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

1.325 J

-55 °C (-67 °F)

Tin

35 A

20 ms

1.325

Bulk

0.217 in (5.5 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)

0.846 in (21.5 mm)

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

125 °C (257 °F)

Time Lag

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.