Littelfuse 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

KLK020

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

20 A

End Cap

100 kA

Rated Breaking Capacity at 500 VDC: 50000 A

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CSA; UL

Fast

L50QS350.V

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

350 A

Tab/Blade

14.246 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 50000 A

Bulk

1.5 in (38.1 mm)

500 V

10 ms

2.093 in (53.16 mm)

CE; CUL; UL

125 °C (257 °F)

Very Fast

LA15QS1000-4

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

1 kA

Tab/Blade

520 J

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

1.5 in (38.1 mm)

1.5 x 1.252 in (38.1 x 31.8 mm)

1.252 in (31.8 mm)

UL

Very Fast

LA15QS1000-4TI

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

1 kA

Tab/Blade

520 J

100 kA

Rated Breaking Capacity at 150 VDC: 100000 A

1.5 in (38.1 mm)

Indicator

1.5 x 1.252 in (38.1 x 31.8 mm)

1.252 in (31.8 mm)

UL

Very Fast

0218016.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

16 A

Pin Wire

1.955 kJ

-55 °C (-67 °F)

Tin

63 A

20 ms

Bulk

0.217 in (5.5 mm)

e3

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)

CE; UL

125 °C (257 °F)

Time Lag

021801.6MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.6 A

Pin Wire

23.35 J

-55 °C (-67 °F)

Tin

35 A

20 ms

23.35

Bulk

0.217 in (5.5 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)

0.846 in (21.5 mm)

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

125 °C (257 °F)

Time Lag

023403.5MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

3.5 A

End Cap

36.275 J

-55 °C (-67 °F)

Tin

100 A

400 ms

36.275

Bulk

0.205 in (5.2 mm)

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; PSE; UL

125 °C (257 °F)

Medium

0251.125MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-55 °C (-67 °F)

Tin

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

0.11 in (2.8 mm)

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

02511.25MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1.25 A

Pin Wire

390 mJ

-55 °C (-67 °F)

Tin

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

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)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0285.500HXRP

Littelfuse

Electric Fuse

Inline/Holder

250 V

500 mA

End Cap

300 mJ

-55 °C (-67 °F)

1.5 kA

50 ms

Bulk

0.205 in (5.2 mm)

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)

0285.500MXRP

Littelfuse

Electric Fuse

Inline/Holder

250 V

500 mA

End Cap

300 mJ

-55 °C (-67 °F)

1.5 kA

50 ms

Bulk

0.205 in (5.2 mm)

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)

0312006.MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

6 A

End Cap

118 J

-55 °C (-67 °F)

Nickel

200 A

5 s

118

Bulk

0.25 in (6.35 mm)

250 V

3AG

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE; CSA; KC; PSE; UL

125 °C (257 °F)

Fast

0313001.MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

14 J

-60 °C (-76 °F)

Nickel

35 A

5 s

14

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; PSE; UL

125 °C (257 °F)

Time Lag

031301.5HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

1.5 A

End Cap

38 J

-55 °C (-67 °F)

Nickel

100 A

4 h

38

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; PSE; UL

125 °C (257 °F)

Time Lag

0313015.HXP

Littelfuse

Electric Fuse

Inline/Holder

32 V

15 A

End Cap

1.87 kJ

-55 °C (-67 °F)

Nickel

300 A

4 h

1870

Bulk

0.25 in (6.35 mm)

Supplemental

32 V

3AG

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

UL

125 °C (257 °F)

Time Lag

032501.2VXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

1.2 A

Pin Wire

-55 °C (-67 °F)

Tin

4 h

22

0.275 in (6.985 mm)

e3

250 V

3AB

0.275 x 1.288 in (6.985 x 32.72 mm)

1.288 in (32.72 mm)

CE, CSA, PSE, UL

125 °C (257 °F)

Time Lag

032501.6MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

1.6 A

Pin Wire

66 J

-55 °C (-67 °F)

Tin

100 A

5 s

Rated Breaking Capacity at 125 VDC: 10000 A

45

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; PSE; UL

125 °C (257 °F)

Time Delay

0325012.VXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

12 A

Pin Wire

-55 °C (-67 °F)

Tin

4 h

129

0.275 in (6.985 mm)

e3

250 V

3AB

0.275 x 1.288 in (6.985 x 32.72 mm)

1.288 in (32.72 mm)

CE, CSA, PSE, UL

125 °C (257 °F)

Time Lag

0451.630MRL

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

630 mA

Wraparound

138.1 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

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

04516.30MRL

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

6.3 A

Wraparound

9.17 J

-55 °C (-67 °F)

Gold

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

087501.6MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.6 A

Pin Wire

5.08 J

-55 °C (-67 °F)

50 A

4 h

5.08

Bulk

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

0BLS003.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

3 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

0FLM.250T

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

250 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)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CE; CSA; QPL; UL

Time Delay

0FLQ030.T

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

30 A

End Cap

Nickel

10 kA

0.406 in (10.31 mm)

500 V

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

0HEV030.ZXC

Littelfuse

Electric Fuse

Inline/Holder

450 V

30 A

Tab/Blade

993 J

-40 °C (-40 °F)

10 kA

50 ms

0.406 in (10.3 mm)

450 V

1.531 in (38.9 mm)

CSA; UL

125 °C (257 °F)

37000800430

Littelfuse

Electric Fuse

Through Hole Mount

250 V

80 mA

Pin Wire

1.4 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

37200500001

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

10.8 mJ

-40 °C (-40 °F)

Matte Tin

35 A

20 ms

0.01

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; KC; UL; VDE

85 °C (185 °F)

Time Lag

37200500411

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

10.8 mJ

-40 °C (-40 °F)

Matte Tin

35 A

20 ms

0.01

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

FLQ01.5

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

1.5 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

FLQ015

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

15 A

End Cap

10 kA

0.406 in (10.31 mm)

500 V

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CSA; UL

Time Delay

FLSR030

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

30 A

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

JLLS200

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

200 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.063 in (27 mm)

1.063 x 1.657 in (27 x 42.1 mm)

1.657 in (42.1 mm)

CSA; UL

Fast

JLLS200.XXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

200 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

1.079 in (27.4 mm)

600 V

1.657 in (42.1 mm)

CE; CSA; UL

Fast

MAX60

Littelfuse

Electric Fuse

Inline/Holder

32 V

60 A

Tab/Blade

15.3 kJ

-40 °C (-40 °F)

1 kA

40 ms

Box

1.15 in (29.2 mm)

0.346 in (8.8 mm)

0.85 in (21.6 mm)

UL

125 °C (257 °F)

Slow

0218.050MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

27 mJ

-55 °C (-67 °F)

Nickel

35 A

10 ms

0.017

Bulk

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; KC; SEMKO; UL; VDE

125 °C (257 °F)

Time Lag

0218050.MXP

Littelfuse

Electric Fuse

50 mA

End Cap

-55 °C (-67 °F)

Matte Tin

35 A

0.017

0.787 in (20 mm)

Supplemental

e3

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CCC; CE; CSA; UL; VDE

125 °C (257 °F)

Time Lag

0313010.HXP

Littelfuse

Electric Fuse

Inline/Holder

32 V

10 A

End Cap

760 J

-55 °C (-67 °F)

Nickel

300 A

4 h

760

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; PSE; UL

125 °C (257 °F)

Time Lag

0313.010HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

10 mA

End Cap

120 μJ

-55 °C (-67 °F)

Nickel

35 A

4 h

0.0001

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

0315.500HXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

500 mA

Pin Wire

2.55 J

-55 °C (-67 °F)

Matte Tin

35 A

Bulk

0.275 in (6.985 mm)

e3

0.275 x 1.275 in (6.985 x 32.385 mm)

1.275 in (32.385 mm)

CE; CSA; UL

125 °C (257 °F)

Time Lag

0437004.WR

Littelfuse

Electric Fuse

Surface Mount

45 V

63 V

4 A

Wraparound

1.024 J

-55 °C (-67 °F)

Matte Tin Over Nickel

50 A

1 s

1.024

Tape And Reel

0.126 in (3.2 mm)

0.064 in (1.63 mm)

e3

35 V

1206

0.126 x 0.064 x 0.032 in (3.2 x 1.63 x 0.82 mm)

0.033 in (0.835 mm)

CSA; CUL; UL

150 °C (302 °F)

Fast

0443005.DRLC

Littelfuse

Electric Fuse

Surface Mount

280 V

5 A

Wraparound

180.6 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

0481.500HXL

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

500 mA

End Cap

490 mJ

-55 °C (-67 °F)

40 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

0885005.DR

Littelfuse

Electric Fuse

Surface Mount

350 V

450 V

5 A

Wraparound

35 J

-40 °C (-40 °F)

Tin

100 A

1 s

Tape And Reel

0.428 in (10.86 mm)

0.188 in (4.78 mm)

e3

Nano

0.428 x 0.188 x 0.188 in (10.86 x 4.78 x 4.78 mm)

0.188 in (4.78 mm)

CUL; TUV; UL

105 °C (221 °F)

0977012.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

500 V

450 V

12 A

Pin Wire

388 J

-55 °C (-67 °F)

Tin

100 A

Rated Breaking Capacity at 450 VDC: 200 A

388

Bulk

0.228 in (5.8 mm)

e3

500 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)

CE; PSE

125 °C (257 °F)

Time Lag

0JTD250.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

250 A

Tab/Blade

200 kA

Rated Breaking Capacity at 500 VDC: 20000 A

Bulk

2 in (50.8 mm)

3.374 in (85.7 mm)

CSA; UL

Time Delay

37200500431

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

10.8 mJ

-40 °C (-40 °F)

Matte Tin

35 A

20 ms

0.01

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

KLKD025.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

25 A

End Cap

2.085 kJ

-55 °C (-67 °F)

Nickel

100 kA

4 m

0.406 in (10.31 mm)

600 V

0.394 x 1.496 in (10 x 38 mm)

1.5 x 1.5 in (38.1 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; IEC; UL

125 °C (257 °F)

Fast

KLKD02.5T

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

2.5 A

End Cap

-55 °C (-67 °F)

100 kA

4 m

0.406 in (10.31 mm)

600 V

0.394 x 1.496 in (10 x 38 mm)

1.5 x 1.5 in (38.1 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; IEC; UL; VDE

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.