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

046406.3DR

Littelfuse

Electric Fuse

Surface Mount

250 V

6.3 A

End Cap

40 J

-55 °C (-67 °F)

Silver

100 A

53.33

Tape And Reel

0.476 in (12.1 mm)

0.177 in (4.5 mm)

e4

250 V

Nano

0.476 x 0.177 x 0.177 in (12.1 x 4.5 x 4.5 mm)

0.177 in (4.5 mm)

PSE; UMF

125 °C (257 °F)

Fast

046406.3.DR

Littelfuse

Electric Fuse

6.3 A

-55 °C (-67 °F)

Silver

100 A

53.33

Tape And Reel

0.476 in (12.1 mm)

0.177 in (4.5 mm)

e4

250 V

Nano

0.476 x 0.177 x 0.177 in (12.1 x 4.5 x 4.5 mm)

0.177 in (4.5 mm)

PSE

125 °C (257 °F)

Fast

0472001.MRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

938.4 mJ

-55 °C (-67 °F)

Tin

50 A

2 m

Pre Arcing Time: Open within 120 s at 200% Rated Current

Tape And Reel

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)

UL

125 °C (257 °F)

Time Lag

0476015.MRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

15 A

Wraparound

61.286 J

-55 °C (-67 °F)

Tin

100 A

2 m

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 120 s at 200% Rated Current

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e3

Nano

0.106 in (2.69 mm)

CUL; UL

125 °C (257 °F)

Fast

0477016.MXP

Littelfuse

Electric Fuse

Inline/Holder

500 V

400 V

16 A

End Cap

1.331 kJ

-55 °C (-67 °F)

Nickel

100 A

10 ms

Rated Breaking Capacity at 400 VDC: 400 A

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)

CUL; PSE; UL

125 °C (257 °F)

Time Lag

0495050ZXA

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

8.8 kJ

-40 °C (-40 °F)

1 kA

40 ms

0.555 in (14.1 mm)

0.472 in (12 mm)

32 V

1.063 in (27 mm)

UL

125 °C (257 °F)

Time Delay

0495050.ZXA

Littelfuse

Electric Fuse

Inline/Holder

32 V

50 A

Tab/Blade

8.8 kJ

-40 °C (-40 °F)

1 kA

40 ms

0.555 in (14.1 mm)

0.472 in (12 mm)

32 V

1.063 in (27 mm)

UL

125 °C (257 °F)

Time Delay

0498150.M

Littelfuse

Electric Fuse

Inline/Holder

32 V

150 A

Tab/Blade

81.9 kJ

-40 °C (-40 °F)

Matte Tin

2 kA

100 ms

Bulk

0.63 in (16 mm)

0.472 in (12 mm)

e3

0.63 x 0.472 x 0.327 in (16 x 12 x 8.3 mm)

0.327 in (8.3 mm)

125 °C (257 °F)

Time Delay

0498200.H

Littelfuse

Electric Fuse

Inline/Holder

32 V

200 A

Tab/Blade

125 kJ

-40 °C (-40 °F)

Tin

2 kA

100 ms

Bulk

0.63 in (16 mm)

0.472 in (12 mm)

e3

0.63 x 0.472 x 0.327 in (16 x 12 x 8.3 mm)

0.327 in (8.3 mm)

125 °C (257 °F)

Time Delay

0505025.MXP

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

25 A

End Cap

210 J

-55 °C (-67 °F)

Matte Tin

30 kA

10 s

Rated Breaking Capacity at 500 VDC: 20000 A

210

Bulk

0.25 in (6.35 mm)

e3

500 V

3AB

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

125 °C (257 °F)

Fast

0526050.ZXISOP

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

50 A

Tab/Blade

3.85 kJ

-55 °C (-67 °F)

10 kA

2 m

Tray

0.45 in (11.43 mm)

0.394 x 1.26 in (10 x 32 mm)

1.386 in (35.2 mm)

CUL; UL

125 °C (257 °F)

0875010.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

10 A

Pin Wire

208 J

-55 °C (-67 °F)

Matte Tin

50 A

4 h

208

Bulk

0.142 in (3.6 mm)

e3

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

0997005.WXN

Littelfuse

Electric Fuse

Inline/Holder

58 V

5 A

Tab/Blade

25 J

-40 °C (-40 °F)

Silver

1 kA

30 ms

0.429 in (10.9 mm)

0.15 in (3.8 mm)

e4

58 V

Mini

0.346 in (8.8 mm)

ISO; UL

125 °C (257 °F)

0997005WXN

Littelfuse

Electric Fuse

Inline/Holder

58 V

5 A

Tab/Blade

25 J

-40 °C (-40 °F)

Silver

1 kA

Rated Breaking Capacity at 58 VDC: 1000 A

Bulk

0.429 in (10.9 mm)

0.14 in (3.55 mm)

e4

0.429 x 0.14 x 0.346 in (10.9 x 3.55 x 8.8 mm)

0.346 in (8.8 mm)

125 °C (257 °F)

0JTD100.V

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

100 A

Tab/Blade

68.15 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

1.126 in (28.6 mm)

600 V

2.626 in (66.7 mm)

CSA; UL

Time Delay

0LDC200.X

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

200 A

Tab/Blade

200 kA

16 ms

Rated Breaking Capacity at 600 VDC: 50000 A

2.5 in (63.5 mm)

L

600 V

2.5 x 3.752 in (63.5 x 95.3 mm)

3.752 in (95.3 mm)

CE, UL

Fast

0SPF03.5T

Littelfuse

Electric Fuse

Inline/Holder

1 KV

3.5 A

End Cap

11 J

20 kA

4 m

Bulk

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; TUV; UL

Fast

10-1002

Littelfuse

Electric Fuse

Inline/Holder

32 V

15 A

Tab/Blade

-40 °C (-40 °F)

1 kA

80 ms

Pre Arcing Time: Open within 80 ms at 350% Rated Current

Blister

0.76 in (19.3 mm)

0.207 in (5.25 mm)

ATO

32 V

Indicator

0.48 in (12.2 mm)

125 °C (257 °F)

142.5395.6202

Littelfuse

Electric Fuse

Inline/Holder

58 V

200 A

Tab/Blade

288 kJ

-40 °C (-40 °F)

1 kA

100 ms

1.142 in (29 mm)

58 V

1.142 x 0.74 x 0.366 in (29 x 18.8 x 9.3 mm)

0.366 in (9.3 mm)

UL

125 °C (257 °F)

Slow

142.5631.5302

Littelfuse

Electric Fuse

Inline/Holder

58 V

30 A

Tab/Blade

5.1 kJ

-40 °C (-40 °F)

1 kA

5100

0.63 in (16 mm)

0.472 in (12 mm)

58 V

0.472 x 0.307 x 0.63 in (12 x 7.8 x 16 mm)

0.307 in (7.8 mm)

UL

125 °C (257 °F)

142.5631.5802

Littelfuse

Electric Fuse

Inline/Holder

58 V

80 A

Tab/Blade

25.6 kJ

-40 °C (-40 °F)

Matte Tin

1 kA

25600

0.63 in (16 mm)

0.472 in (12 mm)

e3

58 V

0.472 x 0.307 x 0.63 in (12 x 7.8 x 16 mm)

0.307 in (7.8 mm)

UL

125 °C (257 °F)

142.5631.6102

Littelfuse

Electric Fuse

Inline/Holder

58 V

100 A

Tab/Blade

42.5 kJ

-40 °C (-40 °F)

Matte Tin

1 kA

42500

0.63 in (16 mm)

0.472 in (12 mm)

e3

58 V

0.472 x 0.307 x 0.63 in (12 x 7.8 x 16 mm)

0.307 in (7.8 mm)

UL

125 °C (257 °F)

153.5631.5801

Littelfuse

Electric Fuse

Inline/Holder

32 V

80 A

Tab/Blade

25.6 kJ

-40 °C (-40 °F)

Tin

2 kA

100 ms

25600

0.63 in (16 mm)

0.472 in (12 mm)

e3

32 V

0.63 x 0.472 x 0.315 in (16 x 12 x 8 mm)

0.307 in (7.8 mm)

CUL; ISO; UL

125 °C (257 °F)

157.5917.6121

Littelfuse

Electric Fuse

Inline/Holder

48 V

125 A

Tab/Blade

-40 °C (-40 °F)

750 A

200 ms

Bulk

1.26 in (32 mm)

0.866 in (22 mm)

48 V

1.26 x 0.866 x 0.413 in (32 x 22 x 10.5 mm)

0.413 in (10.5 mm)

CUL; UL

125 °C (257 °F)

273.005

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

5 mA

Tab/Blade

-55 °C (-67 °F)

10 kA

5 s

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

0.25 in (6.35 mm)

125 V

Micro

0.25 x 0.35 in (6.35 x 8.89 mm)

0.35 in (8.89 mm)

CSA; UL

85 °C (185 °F)

Very Fast

273005

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

5 A

Tab/Blade

2.21 J

-55 °C (-67 °F)

10 kA

2 s

Pre Arcing Time: Open within 2 s at 200% Rated Current

0.25 in (6.35 mm)

125 V

Micro

0.25 x 0.35 in (6.35 x 8.89 mm)

0.35 in (8.89 mm)

CSA; UL

85 °C (185 °F)

Very Fast

314020

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

20 A

End Cap

631 J

-55 °C (-67 °F)

1 kA

30 s

Rated Breaking Capacity at 125 VDC: 10000 A, Pre Arcing Time: Open within 30 s at 200% Rated Current

631

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)

CSA; METI; PSE; QPL; UL

125 °C (257 °F)

Fast

37015000000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

5 A

Pin Wire

12 J

-40 °C (-40 °F)

Tin

50 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; PSE; UL; VDE

85 °C (185 °F)

Fast

37206300411

Littelfuse

Electric Fuse

Through Hole Mount

250 V

630 mA

Pin Wire

3.096 J

-40 °C (-40 °F)

Matte Tin

35 A

20 ms

2.5

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

39513150440

Littelfuse

Electric Fuse

Through Hole Mount

125 V

3.15 A

Pin Wire

1.9 J

-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)

PSE; UL

85 °C (185 °F)

Fast

FLNR050.T

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

50 A

End Cap

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

0.815 in (20.7 mm)

3 in (76.2 mm)

CSA; UL

Time Delay

FLNR150.X

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

150 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

Bulk

1.535 in (39 mm)

7.126 in (181 mm)

CSA; UL

Time Delay

ITV4030L1412NR

Littelfuse

Electric Fuse

Surface Mount

36 V

12 A

Wraparound

-10 °C (14 °F)

50 A

Tape And Reel, 13 inch

0.157 in (4 mm)

0.118 in (3 mm)

36 V

0.035 in (0.9 mm)

CUL; TUV; UL

65 °C (149 °F)

ITV9550L1445MR

Littelfuse

Electric Fuse

Surface Mount

85 V

45 A

Wraparound

-10 °C (14 °F)

120 A

Tape And Reel, 13 inch

0.374 in (9.5 mm)

0.197 in (5 mm)

0.079 in (2 mm)

CUL; TUV; UL

65 °C (149 °F)

JLLN225.X

Littelfuse

Electric Fuse

Inline/Holder

300 V

125 V

225 A

Tab/Blade

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

1.311 in (33.3 mm)

300 V

2.752 in (69.9 mm)

CE; CSA; CUL; UL

Fast

JLLS400.XXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

400 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

JLS050

Littelfuse

Electric Fuse

Inline/Holder

600 V

50 A

End Cap

200 kA

Bulk

1.063 in (27 mm)

1.063 x 2.374 in (27 x 60.3 mm)

2.374 in (60.3 mm)

CE; CSA; QPL; UL

Fast

JLS060

Littelfuse

Electric Fuse

Inline/Holder

600 V

60 A

End Cap

200 kA

Bulk

1.063 in (27 mm)

1.063 x 2.374 in (27 x 60.3 mm)

2.374 in (60.3 mm)

CE; CSA; QPL; UL

Fast

JTD030ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

30 A

End Cap

4.754 kJ

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.811 in (20.6 mm)

Indicator

0.811 x 2.252 in (20.6 x 57.2 mm)

2.252 in (57.2 mm)

CSA; UL

Time Delay

JTD60

Littelfuse

Electric Fuse

JTD

KLDR020.TXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

123.8 J

Nickel

200 kA

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)

CSA; UL

Time Delay

KLDR020TXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

20 A

End Cap

123.8 J

200 kA

12 s

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.406 in (10.3 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

L50QS300.V

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

300 A

Tab/Blade

11.24 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 50000 A

Bulk

1.5 in (38.1 mm)

10 ms

2.093 in (53.16 mm)

CE; CUL; UL

125 °C (257 °F)

Very Fast

L50QS400.V

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

400 A

Tab/Blade

21.155 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 50000 A

Bulk

1.5 in (38.1 mm)

10 ms

2.093 in (53.16 mm)

CE; CUL; UL

125 °C (257 °F)

Very Fast

L50QS600.X

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

600 A

Tab/Blade

43.922 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 500 VDC: 50000 A

Bulk

2 in (50.8 mm)

10 ms

2.218 in (56.34 mm)

CE; CUL; UL

125 °C (257 °F)

Very Fast

L70QS125.V

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

125 A

Tab/Blade

2.208 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

1.218 in (30.94 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS150.V

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

150 A

Tab/Blade

3.026 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

1.218 in (30.94 mm)

2.875 in (73.03 mm)

CUL; UL

125 °C (257 °F)

Very Fast

L70QS250.X

Littelfuse

Electric Fuse

Inline/Holder

700 V

700 V

250 A

Tab/Blade

10.999 kJ

-55 °C (-67 °F)

200 kA

Rated Breaking Capacity at 700 VDC: 50000 A

Box

2 in (50.8 mm)

2.844 in (72.24 mm)

CUL; 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.