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

0453003.MRL

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

Wraparound

1.65 J

-55 °C (-67 °F)

Silver

50 A

5 s

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

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; PSE; UL

125 °C (257 °F)

Very Fast

0239003.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

129.51 J

-55 °C (-67 °F)

Matte Tin

100 A

2 m

129.5

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)

CE; CSA; KC; PSE; UL

125 °C (257 °F)

Time Lag

0251003.HXL

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

Bulk

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

0253003.PXT3L

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

Bulk

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; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

3E-16PT-15.5

Littelfuse

Electric Fuse

Inline/Holder

15.5 KV

3 A

End Cap

35 kA

1.563 in (39.69 mm)

1.563 x 17.5 in (39.69 x 444.5 mm)

17.5 in (444.5 mm)

Medium

0312003.P

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

14 J

-55 °C (-67 °F)

Tin

100 A

312

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)

Fast

0251003.NXL

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

1.19

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; PSE; TUV; UL

125 °C (257 °F)

Very Fast

0388003.MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

22.1 J

-55 °C (-67 °F)

Tin

100 A

388

Bulk

0.275 in (6.99 mm)

e3

0.275 x 1.288 in (6.99 x 32.72 mm)

1.288 in (32.72 mm)

CE; KTL; PSE

125 °C (257 °F)

0472003.NXT1L

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

0235003.P

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

8.395 J

-55 °C (-67 °F)

Nickel

100 A

235

0.205 in (5.2 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Fast

0230003.MXF23OP

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

0217003.MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

-55 °C (-67 °F)

Nickel

35 A

10 ms

Bulk

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

125 °C (257 °F)

Very Fast

230003P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

77 J

-55 °C (-67 °F)

Tin

100 A

230P

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; METI; PSE; UL

125 °C (257 °F)

Slow

142.6185.430.2

Littelfuse

Electric Fuse

Inline/Holder

58 V

3 A

Tab/Blade

15 J

Tin

Rated Breaking Capacity at 58 VDC: 1000 A

0.748 in (19 mm)

0.197 in (5 mm)

e3

0.748 x 0.197 x 0.52 in (19 x 5 x 13.2 mm)

0.52 in (13.2 mm)

UL

0232003.XW

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

17.65 J

100 A

232

0.205 in (5.2 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

KTL; METI; PSE

Medium

3E-1C-38.0L

Littelfuse

Electric Fuse

Inline/Holder

38 KV

3 A

End Cap

20 kA

3E-1C-38.0

3 in (76.2 mm)

3 x 30.622 in (76.2 x 777.8 mm)

30.622 in (777.8 mm)

1981300000

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

110 J

-25 °C (-13 °F)

100 A

Bulk

0.205 in (5.2 mm)

5 s

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CSA; UL

70 °C (158 °F)

Time Delay

0263003.WAT1HF

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

1.77 J

-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; PSE; UL

125 °C (257 °F)

Very Fast

0434003.NR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

3 A

Wraparound

198 mJ

-55 °C (-67 °F)

Tin

35 A

434

Rated Breaking Capacity at 32 VDC: 35 A

Tape And Reel

0.063 in (1.6 mm)

0.032 in (0.81 mm)

e3

0.063 x 0.032 x 0.012 in (1.6 x 0.81 x 0.31 mm)

0.012 in (0.31 mm)

CSA; UL

90 °C (194 °F)

Very Fast

168.6785.4302

Littelfuse

Electric Fuse

Inline/Holder

32 V

3 A

Tab/Blade

7.45 J

Tin

1 kA

Rated Breaking Capacity at 32 VDC: 1000 A

Bulk

0.469 in (11.9 mm)

0.15 in (3.8 mm)

e3

0.469 x 0.15 x 0.339 in (11.9 x 3.8 x 8.6 mm)

0.339 in (8.6 mm)

UL

FLQ3

Littelfuse

Electric Fuse

Inline/Holder

500 V

3 A

End Cap

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

Slow

0473003.YRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

21 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

02200007DRT3P

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)

297003LXN

Littelfuse

Electric Fuse

3 A

Tab/Blade

-40 °C (-40 °F)

Silver

1 kA

9.4

0.429 in (10.9 mm)

0.15 in (3.8 mm)

e4

32 V

33.75 mΩ

0.429 x 0.15 x 0.346 in (10.9 x 3.8 x 8.8 mm)

0.346 in (8.8 mm)

UL

125 °C (257 °F)

429003WR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

3 A

Wraparound

700 mJ

-55 °C (-67 °F)

Tin Lead Over Nickel

50 A

429

Rated Breaking Capacity at 32 VDC: 50 A

Tape And Reel

0.125 in (3.18 mm)

0.06 in (1.52 mm)

e0

0.125 x 0.06 x 0.045 in (3.18 x 1.52 x 1.14 mm)

0.045 in (1.14 mm)

CSA; UL

90 °C (194 °F)

Very Fast

0452003.NRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

Wraparound

20.16 J

-55 °C (-67 °F)

50 A

2 ms

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

125 V

Nano

0.106 in (2.69 mm)

CSA; CUL; UL

125 °C (257 °F)

Slow

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.