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

LMF3

Littelfuse

Electric Fuse

Inline/Holder

300 V

3 A

End Cap

10 kA

0.61 in (15.49 mm)

0.61 x 1.82 in (15.49 x 46.23 mm)

1.82 in (46.23 mm)

CSA; UL

Time Delay

0481003.VX

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

3401300000

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

0313003.IDMXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

200 J

-55 °C (-67 °F)

10 kA

Bulk

1.25 in (31.75 mm)

Indicator

1.25 x 0.25 in (31.75 x 6.35 mm)

0.25 in (6.35 mm)

CE; CSA; KC; PSE; UL

125 °C (257 °F)

Time Lag

0337003.LXS

Littelfuse

Electric Fuse

Inline/Holder

32 V

3 A

Tab/Blade

9 J

-40 °C (-40 °F)

1 kA

20 ms

Bulk

0.567 in (14.4 mm)

0.165 in (4.2 mm)

32 V

Micro

0.417 in (10.6 mm)

125 °C (257 °F)

0472003.MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

9.36 J

-55 °C (-67 °F)

Tin

50 A

Ammo Pack

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

0451003.MRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

Wraparound

1.65 J

-55 °C (-67 °F)

50 A

5 s

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

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; CUL; PSE; UL

125 °C (257 °F)

Very Fast

263003MX

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

0251003.MAL

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

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; CUL; PSE; TUV; UL

125 °C (257 °F)

Very Fast

KLKR003

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

3 A

Tab/Blade

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)

CE, CSA, UL

Fast

0278003.0H

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Wire

759 mJ

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.235 in (5.97 mm)

125 V

Micro

0.287 in (7.3 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

0251003.HRT1

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

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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

315003

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

3 A

Pin Wire

200 J

Tin/Lead

100 A

0.275 in (6.985 mm)

e0

0.275 x 1.275 in (6.985 x 32.385 mm)

1.275 in (32.385 mm)

CE; CSA; PSE; UL

Slow

RF0343-000

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

Wraparound

870 mJ

50 A

UL

125 °C (257 °F)

Slow

1981300043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

110 J

-25 °C (-13 °F)

100 A

Tape And Reel

0.213 in (5.4 mm)

5 s

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

CSA; UL

70 °C (158 °F)

Time Delay

594003S

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

3 A

End Cap

Silver

594

e4

02206003HXP

Littelfuse

Electric Fuse

Through Hole Mount

300 V

3 A

Pin Wire

4.62 J

-55 °C (-67 °F)

Tin

100 A

4 h

4.62

Bulk

0.185 in (4.7 mm)

e3

300 V

2AG

0.185 x 0.57 in (4.7 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; UL

125 °C (257 °F)

Fast

0MIN03.0VXGLO

Littelfuse

Electric Fuse

Inline/Holder

12 V

3 A

Tab/Blade

-40 °C (-40 °F)

1 kA

30 ms

Bulk

0.43 in (10.92 mm)

0.15 in (3.81 mm)

Mini

0.345 in (8.76 mm)

125 °C (257 °F)

0453003

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

Wraparound

1.65 J

Silver

50 A

453

Rated Breaking Capacity at 32 VDC: 300 A

e4

CSA; UL

Very Fast

0251003T1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

1.19 J

-55 °C (-67 °F)

Matte 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)

CSA; METI; PSE; UL

125 °C (257 °F)

Very Fast

0402SFF300F/24-2

Littelfuse

Electric Fuse

Surface Mount

24 V

3 A

Wraparound

35 A

0402SFF300F/24-2

UL

125 °C (257 °F)

Fast

0603SFP300F/32

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

Wraparound

720 mJ

-55 °C (-67 °F)

50 A

0.069 in (1.75 mm)

0.037 in (0.95 mm)

200 µs

0603

0.037 in (0.95 mm)

UL

125 °C (257 °F)

0473003.PXL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

21 J

-60 °C (-76 °F)

Tin

50 A

2 ms

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

Bulk

0.135 in (3.43 mm)

e3

Pico

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Time Delay

314003P

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

3 A

End Cap

14.6 J

Nickel

100 A

314P

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; PSE; UL

Fast

0230003.MXEP

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

0253003L

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

253

Rated Breaking Capacity at 125 VDC: 300 A

0.095 in (2.41 mm)

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; METI; PSE; QPL; UL

125 °C (257 °F)

Very Fast

473003.

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

21 J

-55 °C (-67 °F)

Tin Lead

50 A

Rated Breaking Capacity at 125 VDC: 50 A

Tape And Reel

0.125 in (3.17 mm)

e0

0.125 x 0.28 in (3.17 x 7.11 mm)

0.28 in (7.11 mm)

CSA; METI; PSE; UL

125 °C (257 °F)

Slow

0253003.MRT1L

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

1.19

Tape And Reel

0.11 in (2.8 mm)

Supplemental

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; TUV; UL

125 °C (257 °F)

Very Fast

325003

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

200 J

Tin/Lead

0.275 in (6.99 mm)

e0

0.275 x 1.275 in (6.99 x 32.39 mm)

1.275 in (32.39 mm)

CSA; UL

Slow

2751300000

Littelfuse

Electric Fuse

3 A

-25 °C (-13 °F)

50 A

1.5

Tape And Reel

0.094 in (2.4 mm)

125 V

Pico

0.094 x 0.283 in (2.4 x 7.2 mm)

0.283 in (7.2 mm)

CSA, UL

70 °C (158 °F)

Fast

0224003.DRT1P

Littelfuse

Electric Fuse

3 A

Pin Wire

-55 °C (-67 °F)

Tin

100 A

4 h

4.62

Tape And Reel

0.57 in (14.48 mm)

e3

250 V

2AG

0.57 x 0.57 in (14.48 x 14.48 mm)

0.57 in (14.48 mm)

CE, CSA, UL

125 °C (257 °F)

Fast

0673003.

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

18.4 J

50 A

673

0.154 in (3.9 mm)

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; UL

Slow

0251003.NXHF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

1.19 J

-55 °C (-67 °F)

Matte Tin

50 A

251

Rated Breaking Capacity at 125 VDC: 300 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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

KLKR003.

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

3 A

End Cap

Nickel

200 kA

Rated Breaking Capacity at 600 VDC: 20000 A

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

Fast

0253003.HA

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

4191300001

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

End Cap

1.7 J

-65 °C (-85 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.109 in (2.77 mm)

e4

5 s

0.24 x 0.109 x 0.109 in (6.1 x 2.77 x 2.77 mm)

0.109 in (2.77 mm)

CSA; UL

125 °C (257 °F)

Very Fast

04533.00NRL

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

Wraparound

1.65 J

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

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

0303003.H

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

3 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

7AG

0.875 in (22.22 mm)

Normal

L15S3

Littelfuse

Electric Fuse

Inline/Holder

150 V

150 V

3 A

End Cap

100 kA

Rated Breaking Capacity at 150 VDC: 20000 A

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

Fast

202003G

Littelfuse

Electric Fuse

Surface Mount

250 V

3 A

Gull Wing

1.71 J

-55 °C (-67 °F)

Tin Lead

50 A

202

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)

Fast

0202003.URG

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

Tape And Reel

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

1671300100

Littelfuse

Electric Fuse

Inline/Holder

32 V

3 A

Tab/Blade

7.6 J

-40 °C (-40 °F)

1 kA

Bulk

0.469 in (11.9 mm)

0.15 in (3.8 mm)

20 ms

0.335 in (8.5 mm)

85 °C (185 °F)

Very Fast

0603SFV300F/32-2

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

Wraparound

460 mJ

-55 °C (-67 °F)

35 A

4 h

0.46

0.069 in (1.75 mm)

0.037 in (0.95 mm)

32 V

0603

0.069 x 0.037 x 0.019 in (1.75 x 0.95 x 0.48 mm)

0.019 in (0.48 mm)

UL

125 °C (257 °F)

Very Fast

HVR250P080CFA

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

-40 °C (-40 °F)

3 s

Bulk

0.228 in (5.8 mm)

0.201 in (5.1 mm)

0.429 in (10.9 mm)

CSA; CUL; TUV; UL

85 °C (185 °F)

0253003.NXT3L

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

0230003.DRT2SP

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

MIN3

Littelfuse

Electric Fuse

Inline/Holder

32 V

3 A

Tab/Blade

9.4 J

-40 °C (-40 °F)

1 kA

30 ms

Box

0.429 in (10.9 mm)

0.15 in (3.8 mm)

0.346 in (8.8 mm)

UL

125 °C (257 °F)

0203003.URG

Littelfuse

Electric Fuse

Surface Mount

250 V

3 A

Gull Wing

4.4 J

-55 °C (-67 °F)

Tin Lead

50 A

4 h

4.4

Tape And Reel

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

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.