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

FLSR100ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

100 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.311 in (33.3 mm)

Indicator

1.311 x 7.874 in (33.3 x 200 mm)

7.874 in (200 mm)

CSA; QPL; UL

Time Delay

IDSR075.V

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

75 A

Tab/Blade

200 kA

Rated Breaking Capacity at 600 VDC: 20000 A

Bulk

1.283 in (32.6 mm)

7.874 in (200 mm)

CSA; UL

Time Delay

JLLS040.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

40 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.992 in (25.2 mm)

600 V

1.563 in (39.7 mm)

CE; CSA; UL

Fast

JLLS300.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

1.594 in (40.5 mm)

600 V

1.713 in (43.5 mm)

CE; CSA; UL

Fast

JTD090ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

90 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

1.126 in (28.6 mm)

Indicator

1.126 x 2.626 in (28.6 x 66.7 mm)

2.626 in (66.7 mm)

CSA; UL

Time Delay

KLB1

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

1 A

End Cap

200 kA

KLB

Rated Breaking Capacity at 250 VDC: 20000 A

0.563 in (14.3 mm)

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Fast

KLDR.300HXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 mA

End Cap

11.1 mJ

Nickel

200 kA

12 s

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.406 in (10.3 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

KLK.100

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

100 mA

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)

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Fast

LLSRK080

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

80 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.311 in (33.3 mm)

1.311 x 7.874 in (33.3 x 200 mm)

7.874 in (200 mm)

CSA; UL

Time Delay

LLSRK080ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

80 A

Tab/Blade

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

1.311 in (33.3 mm)

Indicator

1.311 x 7.874 in (33.3 x 200 mm)

7.874 in (200 mm)

CSA; UL

Time Delay

LSRK080

Littelfuse

Electric Fuse

LSRK

MIC2025.V

Littelfuse

Electric Fuse

Inline/Holder

32 V

25 A

Tab/Blade

580 J

-40 °C (-40 °F)

1 kA

20 ms

Box

0.358 in (9.1 mm)

0.15 in (3.8 mm)

Micro

0.311 in (7.9 mm)

125 °C (257 °F)

SPFJ125.XXL

Littelfuse

Electric Fuse

Inline/Holder

600 V

1 KV

125 A

Tab/Blade

23.529 kJ

20 kA

10 m

Rated Breaking Capacity at 1000 VDC: 20000 A

Bulk

1.5 in (38.1 mm)

Midget

3.012 in (76.5 mm)

CE; IEC; UL

0157005.DR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

5 A

Wraparound

5.566 J

-55 °C (-67 °F)

Matte Tin

50 A

5 s

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e3

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)

PSE; UL

125 °C (257 °F)

Very Fast

0157005DR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

5 A

Wraparound

5.566 J

-55 °C (-67 °F)

Matte Tin

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e3

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

PSE; UL

125 °C (257 °F)

Very Fast

0203004.H

Littelfuse

Electric Fuse

Through Hole Mount

250 V

4 A

Pin Wire

8.75 J

-55 °C (-67 °F)

Tin Lead

50 A

4 h

8.75

0.372 in (9.45 mm)

0.25 in (6.35 mm)

e0

250 V

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)

Slow

0213002.MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

2 A

End Cap

92.705 J

-55 °C (-67 °F)

Nickel

35 A

20 ms

92.705

Bulk

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.228 x 0.886 in (5.8 x 22.5 mm)

0.787 in (20 mm)

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

125 °C (257 °F)

Time Lag

0213005.MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

5 A

End Cap

314 J

-55 °C (-67 °F)

Nickel

50 A

20 ms

314

Bulk

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.228 x 0.886 in (5.8 x 22.5 mm)

0.787 in (20 mm)

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

125 °C (257 °F)

Time Lag

0215.630MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

630 mA

End Cap

635 mJ

-55 °C (-67 °F)

Nickel

1.5 kA

5 ms

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

0.635

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)

CE; CSA; IEC; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0215004MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

4 A

End Cap

46.96 J

-55 °C (-67 °F)

Matte Tin

1.5 kA

10 ms

Pre Arcing Time: Open within 10 ms at 1000% Rated Current

46.96

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)

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

125 °C (257 °F)

Time Lag

0215004.MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

4 A

End Cap

46.96 J

-55 °C (-67 °F)

Matte Tin

1.5 kA

10 ms

Pre Arcing Time: Open within 10 ms at 1000% Rated Current

46.96

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)

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

125 °C (257 °F)

Time Lag

0215010.HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

10 A

End Cap

333.565 J

-55 °C (-67 °F)

Nickel

1.5 kA

10 ms

333.5

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; CUL; KC; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0216.800MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

800 mA

End Cap

285 mJ

-55 °C (-67 °F)

Tin

1.5 kA

20 ms

0.285

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)

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

125 °C (257 °F)

Fast

0216016.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

16 A

Pin Wire

462.5 J

-55 °C (-67 °F)

Matte Tin

750 A

462.5

Bulk

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)

CE; CSA; IEC; PSE; SEMKO; UL

125 °C (257 °F)

Fast

021601.6MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.6 A

Pin Wire

1.005 J

-55 °C (-67 °F)

Tin

1.5 kA

20 ms

1.005

Bulk

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

021710.0MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

10 A

End Cap

217.635 J

-55 °C (-67 °F)

100 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)

CE; CUL; KC; PSE; UL; VDE

125 °C (257 °F)

Fast

0217.100MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

100 mA

End Cap

2.6 mJ

-55 °C (-67 °F)

Nickel

35 A

3 ms

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; IEC; KC; SEMKO; UL; VDE

125 °C (257 °F)

Very Fast

0218.500MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

500 mA

End Cap

2.825 J

-55 °C (-67 °F)

Nickel

35 A

20 ms

2.825

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; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0218.630HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

630 mA

End Cap

4.675 J

-55 °C (-67 °F)

Nickel

35 A

4.675

Bulk

0.205 in (5.2 mm)

Supplemental

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; KC; SEMKO; UL; VDE

125 °C (257 °F)

Time Lag

0218.800MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

800 mA

End Cap

3.37 J

-55 °C (-67 °F)

Nickel

35 A

20 ms

3.37

Bulk

0.205 in (5.2 mm)

Supplemental

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; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0218015.HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

15 A

End Cap

1.405 kJ

-55 °C (-67 °F)

Nickel

100 A

1405

Bulk

0.205 in (5.2 mm)

Supplemental

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; IEC; PSE; UL; VDE

125 °C (257 °F)

Time Lag

0219.500MXAP

Littelfuse

Electric Fuse

Inline/Holder

250 V

500 mA

End Cap

3 J

-55 °C (-67 °F)

Nickel

150 A

20 ms

3

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)

125 °C (257 °F)

Time Lag

0225.500HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

500 mA

End Cap

365 mJ

-55 °C (-67 °F)

Tin

35 A

1 s

Rated Breaking Capacity at 125 VDC: 10000 A

0.365

Bulk

0.189 in (4.8 mm)

e3

250 V

2AG

0.57 x 0.57 in (14.48 x 14.48 mm)

0.587 in (14.9 mm)

CE, CSA, UL

125 °C (257 °F)

Fast

0229007.MXP

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

7 A

End Cap

464 J

-55 °C (-67 °F)

Matte Tin

400 A

3 s

464

Bulk

0.189 in (4.8 mm)

e3

125 V

2AG

0.177 x 0.57 in (4.5 x 14.48 mm)

0.587 in (14.9 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

0239003.HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

129.51 J

-55 °C (-67 °F)

Nickel

100 A

4 h

129.5

Bulk

0.205 in (5.2 mm)

Supplemental

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; PSE; UL

125 °C (257 °F)

Time Lag

0239007.MXP

Littelfuse

Electric Fuse

Inline/Holder

125 V

7 A

End Cap

305.758 J

-55 °C (-67 °F)

Nickel

10 kA

2 m

305.7

Bulk

0.205 in (5.2 mm)

Supplemental

125 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; PSE; UL

125 °C (257 °F)

Time Lag

0251.250MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

250 mA

Pin Wire

11.6 mJ

-55 °C (-67 °F)

Matte 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; QPL; UL

125 °C (257 °F)

Very Fast

0251.500.NRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

500 mA

Pin Wire

59.8 mJ

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

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; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0251.500MXL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

500 mA

Pin Wire

59.8 mJ

-55 °C (-67 °F)

Tin

50 A

4 ms

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

0.0598

Bulk

0.11 in (2.8 mm)

Supplemental

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; CUL; TUV; UL

125 °C (257 °F)

Very Fast

0251.500NRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

500 mA

Pin Wire

59.8 mJ

-55 °C (-67 °F)

Matte Tin

50 A

4 ms

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

0.0598

Tape And Reel

0.11 in (2.8 mm)

Supplemental

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; CUL; TUV; UL

125 °C (257 °F)

Very Fast

025101.5MRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1.5 A

Pin Wire

587 mJ

-55 °C (-67 °F)

Matte Tin

50 A

1 s

Pre Arcing Time: Open within 1 s at 200% Rated Current

0.587

Tape And Reel

0.11 in (2.8 mm)

Supplemental

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; CUL; PSE; TUV; UL

125 °C (257 °F)

Very Fast

0251015.MRT1L

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

15 A

Pin Wire

68.8 J

-55 °C (-67 °F)

Matte Tin

50 A

10 s

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

68.8

Tape And Reel

0.11 in (2.8 mm)

Supplemental

e3

32 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; CUL; UL

125 °C (257 °F)

Very Fast

02512.50MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

250 mA

Pin Wire

11.6 mJ

-55 °C (-67 °F)

Matte 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; QPL; UL

125 °C (257 °F)

Very Fast

02515.00MXL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

500 mA

Pin Wire

59.8 mJ

-55 °C (-67 °F)

Tin

50 A

4 ms

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

0.0598

Bulk

0.11 in (2.8 mm)

Supplemental

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; CUL; TUV; UL

125 °C (257 °F)

Very Fast

02515.00NRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

500 mA

Pin Wire

59.8 mJ

-55 °C (-67 °F)

Matte Tin

50 A

4 ms

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

0.0598

Tape And Reel

0.11 in (2.8 mm)

Supplemental

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; CUL; TUV; UL

125 °C (257 °F)

Very Fast

0259.125T

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.2 mJ

-55 °C (-67 °F)

Tin

50 A

5 s

Rated Breaking Capacity at 125 VDC: 300 A

0.0012

Bulk

0.512 in (13 mm)

e3

125 V

Pico

0.512 x 0.315 in (13 x 8 mm)

0.315 in (8 mm)

EN; IEC; UL

125 °C (257 °F)

Fast

0259.250T

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

250 mA

Pin Wire

9.5 mJ

-55 °C (-67 °F)

Tin

50 A

5 s

Rated Breaking Capacity at 125 VDC: 300 A

0.0095

Bulk

0.512 in (13 mm)

e3

Pico

0.512 x 0.315 in (13 x 8 mm)

0.315 in (8 mm)

EN; IEC; UL

125 °C (257 °F)

Fast

0263.062WRT1L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

62 mA

Pin Wire

192 μJ

-55 °C (-67 °F)

Tin

50 A

100 ms

Tape And Reel

0.155 in (3.94 mm)

e3

250 V

Pico

0.155 x 0.28 in (3.94 x 7.11 mm)

UL

125 °C (257 °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.