3 A Fuses 1,178

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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

0239003.MRET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

129.51 J

-55 °C (-67 °F)

Matte Tin

100 A

4 h

129.5

Tape And Reel

0.228 in (5.8 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)

0.886 in (22.5 mm)

CE; CSA; KC; PSE; UL

125 °C (257 °F)

Time Lag

224003M

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

4.62 J

Tin Lead

100 A

224

Bulk

0.177 in (4.5 mm)

e0

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CSA; METI; PSE; UL

Fast

RLN003

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

10 kA

0.563 in (14.3 mm)

2 in (50.8 mm)

CE; CSA; UL

0251003.MAT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

1.19 J

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 4 ms at 1000% Rated Current

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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

318003P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

14 J

-55 °C (-67 °F)

Matte Tin

35 A

5 s

0.275 in (6.985 mm)

e3

3AG

0.276 x 1.288 in (7 x 32.72 mm)

1.288 in (32.72 mm)

CE; CSA; UL

125 °C (257 °F)

Fast

D20186-000

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

Wraparound

50 A

UL

125 °C (257 °F)

Fast

0447003.YXP

Littelfuse

Electric Fuse

Through Hole Mount

350 V

3 A

Pin Wire

9.4 J

-60 °C (-76 °F)

100 A

5 s

9.4

Bulk

0.43 in (10.92 mm)

0.15 in (3.81 mm)

350 V

0.43 x 0.15 x 0.345 in (10.92 x 3.81 x 8.76 mm)

0.345 in (8.76 mm)

CSA; UL

125 °C (257 °F)

Fast

312003

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

3 A

End Cap

14 J

Tin Lead

35 A

4 h

14

0.25 in (6.35 mm)

Supplemental

e0

250 V

3AG

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CSA; UL

Fast

0263003.MRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

1.77 J

-55 °C (-67 °F)

Pure Tin

50 A

0263

Tape And Reel

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; PSE; UL

125 °C (257 °F)

Very Fast

0388003.MXL

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

22.1 J

-55 °C (-67 °F)

Nickel

100 A

388

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; KTL; PSE

125 °C (257 °F)

R452003.MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

End Cap

20.16 J

-55 °C (-67 °F)

Tin Lead

50 A

452

Rated Breaking Capacity at 125 VDC: 50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

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; UL

125 °C (257 °F)

Slow

02200019MRT1P

Littelfuse

Electric Fuse

Through Hole Mount

350 V

3 A

Pin Wire

4.62 J

-55 °C (-67 °F)

Tin

100 A

4 h

4.62

0.177 in (4.5 mm)

Supplemental

e3

350 V

2AG

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)

0251003.PRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

1.19 J

-55 °C (-67 °F)

Tin

50 A

4 ms

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

Tape And Reel

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)

CCC; CSA; CUL; PSE; TUV; UL

125 °C (257 °F)

Very Fast

3263MHXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

3 A

End Cap

200 J

-55 °C (-67 °F)

Matte Tin

100 A

Rated Breaking Capacity at 125 VDC: 10000 A

Bulk

0.25 in (6.35 mm)

e3

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Time Lag

0229003.VXSP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

3 A

End Cap

77 J

-55 °C (-67 °F)

Matte Tin

100 A

Rated Breaking Capacity at 125 VDC: 10000 A

Bulk

0.177 in (4.5 mm)

e3

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)

Time Lag

0263003.WAT1L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

1.77 J

-55 °C (-67 °F)

Pure Tin

50 A

100 ms

1.77

Ammo Pack

0.155 in (3.94 mm)

250 V

Pico

0.155 x 0.28 in (3.94 x 7.11 mm)

CSA, PSE, UL

125 °C (257 °F)

Very Fast

0263003.WXT1L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

1.77 J

-55 °C (-67 °F)

Pure Tin

50 A

Bulk

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; PSE; UL

125 °C (257 °F)

Very Fast

0253003.NA

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

Ammo Pack

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

0263003.MXT1L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

1.77 J

-55 °C (-67 °F)

Pure Tin

50 A

Bulk

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; PSE; UL

125 °C (257 °F)

Very Fast

FLQ003R

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

3 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

0473003MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

21 J

-55 °C (-67 °F)

Tin

50 A

Ammo Pack

0.28 in (7.11 mm)

e3

0.28 x 0.135 in (7.11 x 3.43 mm)

0.135 in (3.43 mm)

CSA; UL

125 °C (257 °F)

Slow

02200019MXP

Littelfuse

Electric Fuse

Inline/Holder

350 V

125 V

3 A

End Cap

4.62 J

-55 °C (-67 °F)

Tin

100 A

1 s

4.62

Bulk

0.189 in (4.8 mm)

Supplemental

e3

350 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)

0314003.MX52LEP

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

14.6 J

-55 °C (-67 °F)

Nickel

100 A

14.6

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, PSE, UL

125 °C (257 °F)

Fast

0471003.NRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

6.96 J

-55 °C (-67 °F)

Tin

50 A

4 h

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)

PSE; UL

125 °C (257 °F)

Time Lag

LLSRK003

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

3 A

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

FLSR003.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

3 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.815 in (20.7 mm)

5 in (127 mm)

CSA; UL

Time Delay

263003HX

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

1.77 J

-55 °C (-67 °F)

50 A

4 h

1.7

0.155 in (3.94 mm)

250 V

27.4 mΩ

Pico

0.28 in (7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0263003.HXL

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

1.77 J

-55 °C (-67 °F)

50 A

100 ms

Bulk

0.155 in (3.94 mm)

250 V

Pico

CSA, PSE, UL

125 °C (257 °F)

Very Fast

0472003.MXT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

9.36 J

-55 °C (-67 °F)

Tin

50 A

Bulk

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)

UL

125 °C (257 °F)

Time Lag

0481003.HM

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

3 A

End Cap

25 J

-55 °C (-67 °F)

300 A

5 m

0.701 in (17.8 mm)

0.228 in (5.8 mm)

125 V

Alarm; Indicator

0.772 in (19.6 mm)

CSA; UL

125 °C (257 °F)

Fast

0230003.MXF16P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

3 A

Pin Wire

77 J

-55 °C (-67 °F)

Matte Tin

100 A

Rated Breaking Capacity at 125 VDC: 10000 A

Bulk

0.185 in (4.7 mm)

e3

0.185 x 0.57 in (4.7 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

3401300002

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

13 J

-25 °C (-13 °F)

100 A

Bulk

0.248 in (6.3 mm)

120 s

0.248 x 1.26 in (6.3 x 32 mm)

1.26 in (32 mm)

CSA; UL

70 °C (158 °F)

Very Fast

1206SFS300F/32-2

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

Wraparound

1.2 J

-55 °C (-67 °F)

50 A

2 ms

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

Tape And Reel, Plastic,7 inch

0.126 in (3.2 mm)

0.063 in (1.6 mm)

32 V

1206

0.038 in (0.97 mm)

UL

125 °C (257 °F)

Slow

AGC3BP

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

3 A

End Cap

0.25 in (6.35 mm)

32 V

3AG

1.25 in (31.75 mm)

0472003.MRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

9.36 J

-55 °C (-67 °F)

Tin

50 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)

UL

125 °C (257 °F)

Time Lag

322003P

Littelfuse

Electric Fuse

Inline/Holder

250 V

65 V

3 A

End Cap

100 A

322P

0.25 in (6.35 mm)

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

UL

Very Fast

203003G

Littelfuse

Electric Fuse

Surface Mount

250 V

250 V

3 A

Gull Wing

4.4 J

-55 °C (-67 °F)

Tin/Lead

50 A

203

Tape And Reel

0.372 in (9.45 mm)

0.25 in (6.35 mm)

e0

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

0325003.HXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

3 A

Pin Wire

200 J

-55 °C (-67 °F)

Matte Tin

100 A

4 h

200

Bulk

0.275 in (6.99 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; KC; PSE; UL

125 °C (257 °F)

Time Lag

0473003.YAT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

21 J

-55 °C (-67 °F)

Pure Tin

50 A

Ammo Pack

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

0253003.HAT3

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

1.19 J

-55 °C (-67 °F)

Tin

50 A

4 ms

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 4 ms at 1000% Rated Current

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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

FLQ003.T

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

3 A

End Cap

-55 °C (-67 °F)

10 kA

0.406 in (10.31 mm)

500 V

Midget

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA, UL

125 °C (257 °F)

Time Lag

0301003.H

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

3 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

1AG

0.625 in (15.87 mm)

Normal

0202003.HXG

Littelfuse

Electric Fuse

Surface Mount

250 V

3 A

Gull Wing

1.71 J

-55 °C (-67 °F)

Tin/Lead

50 A

2 s

1.7

Bulk

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)

Fast

592003S

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

3 A

End Cap

Silver

592

e4

239003M

Littelfuse

Electric Fuse

3 A

Pin Wire

-55 °C (-67 °F)

Tin/Lead

100 A

4 h

129.5

0.787 in (20 mm)

Supplemental

e0

250 V

48.7 mΩ

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

0230003.ERT3SP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

3 A

Pin Wire

77 J

-55 °C (-67 °F)

Matte Tin

100 A

Rated Breaking Capacity at 125 VDC: 10000 A

Tape And Reel

0.185 in (4.7 mm)

e3

0.185 x 0.57 in (4.7 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

0467003.NR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

3 A

Wraparound

240.3 mJ

-55 °C (-67 °F)

Matte Tin Over Nickel

35 A

4 h

Rated Breaking Capacity at 32 VDC: 35 A

0.24

Tape And Reel

0.063 in (1.6 mm)

0.032 in (0.813 mm)

Supplemental

e3

32 V

0603

0.063 x 0.032 x 0.012 in (1.6 x 0.813 x 0.305 mm)

0.012 in (0.305 mm)

CSA; UL

90 °C (194 °F)

Very Fast

0301003.M

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

3 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

1AG

0.625 in (15.87 mm)

Normal

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.