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

4998175.M-NH

Littelfuse

Electric Fuse

Inline/Holder

70 V

175 A

Tab/Blade

88 kJ

-40 °C (-40 °F)

2.5 kA

70 ms

0.63 in (16 mm)

0.496 in (12.6 mm)

0.323 in (8.2 mm)

UL

125 °C (257 °F)

0435.750

Littelfuse

Electric Fuse

Surface Mount

24 V

750 mA

Wraparound

12 mJ

-55 °C (-67 °F)

Tin/Nickel

35 A

Rated Breaking Capacity at 24 VDC: 35 A

0.041 in (1.04 mm)

0.02 in (0.51 mm)

0.041 x 0.02 x 0.012 in (1.04 x 0.51 x 0.3 mm)

0.012 in (0.3 mm)

CSA; UL

90 °C (194 °F)

Very Fast

593025

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

25 A

End Cap

Nickel

593

0498040.MXTM6

Littelfuse

Electric Fuse

Inline/Holder

32 V

40 A

Tab/Blade

10 kJ

-40 °C (-40 °F)

2 kA

Bulk

0.63 in (16 mm)

0.472 in (12 mm)

0.315 in (8 mm)

UL

125 °C (257 °F)

Time Delay

025302.5HAL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

721 mJ

-55 °C (-67 °F)

Tin

50 A

0253

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

0.103 in (2.61 mm)

e3

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; TUV; UL

125 °C (257 °F)

Very Fast

0253.375NAT3L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

375 mA

Pin Wire

29.6 mJ

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

0.11 in (2.8 mm)

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

L15S090.T

Littelfuse

Electric Fuse

Inline/Holder

150 V

100 V

90 A

Tab/Blade

-55 °C (-67 °F)

100 kA

Rated Breaking Capacity at 100 VDC: 20000 A

Box

1 in (25.4 mm)

1.157 in (29.4 mm)

CSA; UL

125 °C (257 °F)

Very Fast

LLSRK04.5ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

4.5 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

0.811 in (20.6 mm)

Indicator

0.811 x 5 in (20.6 x 127 mm)

5 in (127 mm)

CSA; UL

Time Delay

197-0400-040

Littelfuse

Electric Fuse

Through Hole Mount

250 V

400 mA

Pin Wire

92 mJ

-25 °C (-13 °F)

35 A

Bulk

0.213 in (5.4 mm)

120 s

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

CSA; CUL; UL

70 °C (158 °F)

Medium Time Lag

0283100.MXJ

Littelfuse

Electric Fuse

Inline/Holder

32 V

100 A

Tab/Blade

-40 °C (-40 °F)

40 ms

1.874 in (47.6 mm)

0.593 in (15.05 mm)

32 V

0.898 x 0.638 x 0.846 in (22.8 x 16.2 x 21.5 mm)

0.846 in (21.5 mm)

125 °C (257 °F)

0251.200PXT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

200 mA

Pin Wire

4.8 mJ

-55 °C (-67 °F)

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

0.11 in (2.8 mm)

Pico

0.28 in (7.11 mm)

CSA; CUL; UL

125 °C (257 °F)

Very Fast

37402500000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 mA

Pin Wire

313 mJ

-40 °C (-40 °F)

Tin

50 A

1 m

Ammo Pack

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)

CSA, UL

85 °C (185 °F)

Time Lag

KLPC2100

Littelfuse

Electric Fuse

Inline/Holder

600 V

480 V

2.1 kA

Tab/Blade

200 kA

Rated Breaking Capacity at 480 VDC: 20000 A

5 in (127 mm)

5 x 4 in (127 x 101.6 mm)

4 in (101.6 mm)

CSA; UL

Time Delay

KLKD008.HXR

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

8 A

End Cap

656 mJ

-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 0.406 x 1.5 in (38.1 x 10.31 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; IEC; UL

125 °C (257 °F)

Fast

0251.630HRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

630 mA

Pin Wire

94 mJ

-55 °C (-67 °F)

Matte Tin

50 A

251

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)

CSA; UL

125 °C (257 °F)

Very Fast

0473005.YRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

5 A

Pin Wire

54.8 J

-55 °C (-67 °F)

Pure Tin

50 A

Tape And Reel

0.135 in (3.43 mm)

0.135 x 0.28 in (3.43 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Time Lag

02517.00PXT1L

Littelfuse

Electric Fuse

Pure Tin

276.750

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

750 mA

Pin Wire

-55 °C (-67 °F)

50 A

276

Rated Breaking Capacity at 125 VDC: 300 A

0.093 in (2.36 mm)

0.093 x 0.28 in (2.36 x 7.11 mm)

0.28 in (7.11 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0253.500

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

500 mA

Pin Wire

59.8 mJ

-55 °C (-67 °F)

Tin/Lead

50 A

Rated Breaking Capacity at 125 VDC: 300 A

0.095 in (2.41 mm)

e0

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; QPL; UL

125 °C (257 °F)

Very Fast

20101250301P

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

57 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

MAX60BP

Littelfuse

Electric Fuse

Inline/Holder

32 V

60 A

Tab/Blade

15.3 kJ

-40 °C (-40 °F)

1 kA

40 ms

Bulk

1.15 in (29.2 mm)

0.346 in (8.8 mm)

0.85 in (21.6 mm)

UL

125 °C (257 °F)

Slow

KLK003

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

3 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

3721100000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

5.5 J

-40 °C (-40 °F)

Matte Tin

35 A

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; KTL; PSE; SEMKO; UL; VDE

85 °C (185 °F)

Time Lag

20E-1C-8.25S

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

20 A

End Cap

80 kA

Hermitically Sealed Part Number

3 in (76.2 mm)

3 x 15.875 in (76.2 x 403.23 mm)

15.875 in (403.23 mm)

Medium

KLDR1/4

Littelfuse

Electric Fuse

250 mA

End Cap

200 kA

0.406 in (10.3 mm)

CC

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE, CSA, UL

Time Lag

274.750

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

750 mA

Pin Wire

90 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

229.500M

Littelfuse

Electric Fuse

Inline/Holder

250 V

500 mA

End Cap

1.16 J

-55 °C (-67 °F)

Nickel

35 A

229

Bulk

0.177 in (4.5 mm)

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Slow

15NLE2-150EL

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

150 A

End Cap

60 kA

15NLE2-150E

6.378 in (162 mm)

6.378 x 23.874 in (162 x 606.4 mm)

23.874 in (606.4 mm)

0219004.MXAEP

Littelfuse

Electric Fuse

Inline/Holder

250 V

4 A

Pin Wire

330 J

-55 °C (-67 °F)

Tin

150 A

20 ms

330

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

125 °C (257 °F)

Time Lag

0253.500VRL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

500 mA

Pin Wire

59.8 mJ

-55 °C (-67 °F)

Pure Tin

50 A

253

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

0.11 in (2.8 mm)

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0253003.PX

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

1.19 J

-55 °C (-67 °F)

50 A

4 ms

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

Bulk

0.103 in (2.61 mm)

125 V

Pico

0.28 in (7.11 mm)

CCC; CSA; CUL; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

39711000440

Littelfuse

Electric Fuse

Through Hole Mount

125 V

1 A

Pin Wire

4.85 J

-40 °C (-40 °F)

Tin

50 A

3 m 20 s

3.5

Bulk

0.335 in (8.5 mm)

0.315 in (8 mm)

e3

125 V

TE5

0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm)

0.157 in (4 mm)

CUL; UL

125 °C (257 °F)

Slow

FLSR80ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

80 A

Tab/Blade

200 kA

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

04735.00YAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

500 mA

Pin Wire

210 mJ

-60 °C (-76 °F)

Tin

50 A

2 ms

Pre Arcing Time: Blow within 0.002 s at 800% Rated Current

0.21

Ammo Pack

0.135 in (3.43 mm)

e3

125 V

Pico

0.135 x 0.28 in (3.43 x 7.11 mm)

0.28 in (7.11 mm)

CSA; UL

125 °C (257 °F)

Time Delay

04481.50MR

Littelfuse

Electric Fuse

0448

0251015T

Littelfuse

Electric Fuse

Through Hole Mount

32 V

32 V

15 A

Pin Wire

68.8 J

-55 °C (-67 °F)

Tin

50 A

251

Rated Breaking Capacity at 32 VDC: 300 A

Tape And Reel

0.095 in (2.41 mm)

e3

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0312.250VXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 mA

End Cap

35.5 mJ

-55 °C (-67 °F)

35 A

Bulk

0.25 in (6.35 mm)

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)

Fast

0298225.UX1M8

Littelfuse

Electric Fuse

Inline/Holder

32 V

225 A

Tab/Blade

257 kJ

-40 °C (-40 °F)

2 kA

100 ms

Bulk

1.15 in (29.2 mm)

0.748 in (19 mm)

32 V

Mega

0.39 in (9.9 mm)

125 °C (257 °F)

Time Delay

0315.175MXBP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

175 mA

Pin Wire

177 mJ

-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

1930630040

Littelfuse

Electric Fuse

Through Hole Mount

250 V

630 mA

Pin Wire

440 mJ

-25 °C (-13 °F)

35 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)

CUL; DIN; IEC; SEMKO; VDE; UL

70 °C (158 °F)

Very Fast

3298250.ZXM10

Littelfuse

Electric Fuse

Panel Mount

32 V

250 A

Wraparound

160.9 kJ

-40 °C (-40 °F)

2 kA

100 ms

1.232 in (31.3 mm)

0.984 in (25 mm)

0.63 in (16 mm)

125 °C (257 °F)

Time Delay

0491010.MRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

86 V

86 V

10 A

Pin Wire

-55 °C (-67 °F)

Pure Tin

50 A

300 ms

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

Tape And Reel

0.11 in (2.8 mm)

86 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

CCMR50

Littelfuse

350E-3C-8.25S

Littelfuse

Electric Fuse

Inline/Holder

8.25 KV

350 A

End Cap

80 kA

Hermitically Sealed Part Number

9.75 in (247.65 mm)

9.75 x 15.875 in (247.65 x 403.23 mm)

15.875 in (403.23 mm)

Medium

235.600P

Littelfuse

Electric Fuse

Inline/Holder

250 V

600 mA

End Cap

112 mJ

-55 °C (-67 °F)

Tin

35 A

235P

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)

CE; CSA; KTL; UL

125 °C (257 °F)

Fast

0SLC005.T

Littelfuse

Electric Fuse

5 A

End Cap

100 kA

0.406 in (10.3 mm)

G

600 V

0.406 x 1.311 in (10.3 x 33.3 mm)

1.311 in (33.3 mm)

CSA, UL

Medium

265.062V

Littelfuse

Electric Fuse

62 mA

Pin Wire

-55 °C (-67 °F)

Gold

300 A

4 h

0.28 in (7.11 mm)

Supplemental

e4

125 V

7 Ω

Pico

0.28 in (7.11 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

0263.375HAT1HF

Littelfuse

Electric Fuse

Through Hole Mount

250 V

375 mA

Pin Wire

44.4 mJ

-55 °C (-67 °F)

Pure Tin

50 A

Ammo Pack

0.155 in (3.94 mm)

0.155 x 0.28 in (3.94 x 7.11 mm)

0.28 in (7.11 mm)

CSA; 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.