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

1981300040

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

110 J

-25 °C (-13 °F)

100 A

Bulk

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

0491003.MRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 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)

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0253003.NAT3L

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

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; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

F09A250V3AS

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

Silver

35 A

0.415 in (10.54 mm)

e4

0.415 x 1.531 in (10.54 x 38.89 mm)

1.531 in (38.89 mm)

MIL-PRF-15160/9

AGA3CABP

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

3 A

End Cap

0.25 in (6.35 mm)

32 V

1AG

0.625 in (15.875 mm)

02200019DRT3P

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.HRL

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

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; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0472003.MAT1HF

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

0481003V

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

3 A

End Cap

11.2 J

-55 °C (-67 °F)

Tin

300 A

Rated Breaking Capacity at 125 VDC: 200 A

Bulk

e3

Alarm

CSA; UL

90 °C (194 °F)

BLF003

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

10 kA

2 m

Bulk

0.406 in (10.31 mm)

250 V

5AG

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Fast

0251003.PXHF

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

0476003.MRSN

Littelfuse

Electric Fuse

Surface Mount

250 V

125 V

3 A

Wraparound

1.66 J

-55 °C (-67 °F)

Tin

100 A

1 ms

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 1 ms at 1000% 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; PSE; UL

125 °C (257 °F)

Fast

0230003.ERT3P

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

0253003.HXT3

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

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; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

1971300002

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

17 J

-25 °C (-13 °F)

100 A

Bulk

0.205 in (5.2 mm)

120 s

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CSA; CUL; PSE; UL

70 °C (158 °F)

Medium Time Lag

0253003.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

0253

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

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; QPL; TUV; UL

125 °C (257 °F)

Very Fast

IDSR003.T

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

3 A

End Cap

200 kA

Rated Breaking Capacity at 600 VDC: 20000 A

Bulk

0.815 in (20.7 mm)

5 in (127 mm)

CSA; UL

Time Delay

313003PID

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

200 J

100 A

313P

0.25 in (6.35 mm)

Indicator

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CSA; METI; PSE; UL

Slow

1206SFP300F/32

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

Wraparound

1.35 J

50 A

0.134 in (3.4 mm)

0.071 in (1.8 mm)

200 µs

1206

0.046 in (1.17 mm)

SPXC003.HXR

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

3 A

End Cap

14 J

15 kA

4 m

Bulk

0.406 in (10.31 mm)

0.394 x 2.244 in (10 x 57 mm)

2.252 in (57.2 mm)

CE; UL

Fast

0454003

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

End Cap

20.16 J

-55 °C (-67 °F)

Silver

50 A

Rated Breaking Capacity at 125 VDC: 50 A, Joule Integral Nom at 125 VDC: 20.16

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; UL

125 °C (257 °F)

Slow

0253003.MRL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

1.19 J

-55 °C (-67 °F)

Tin

50 A

0253

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

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; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0313003.IDVXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

200 J

-55 °C (-67 °F)

Tin

100 A

313

Bulk

0.25 in (6.35 mm)

e3

Indicator

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

0251003.VRL

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; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0230003.MXF1P

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

263003HA

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

0452003.MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

Wraparound

20.16 J

-55 °C (-67 °F)

Gold

50 A

4 h

Rated Breaking Capacity at 125 VDC: 50 A

20.16

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)

Time Lag

0452003.L

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

End Cap

20.16 J

-55 °C (-67 °F)

Gold

50 A

452

Rated Breaking Capacity at 125 VDC: 50

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; UL

125 °C (257 °F)

Slow

0251003.HAT1

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

0253003.HRT3

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

4 ms

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

Tape And Reel

0.103 in (2.61 mm)

Pico

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

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

125 °C (257 °F)

Very Fast

1206SFS300FM/32

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

End Cap

-55 °C (-67 °F)

Tin Over Nickel

Rated Breaking Capacity at 32 VDC: 50 A

0.134 in (3.4 mm)

0.071 in (1.8 mm)

e3

0.134 x 0.071 x 0.046 in (3.4 x 1.8 x 1.17 mm)

0.046 in (1.17 mm)

UL

125 °C (257 °F)

Slow

0251003.MRT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

1.19 J

-55 °C (-67 °F)

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

0208003.MX

Littelfuse

Electric Fuse

3 A

End Cap

4.62 J

-55 °C (-67 °F)

100 A

0.189 in (4.8 mm)

350 V

2AG

0.189 x 0.587 in (4.8 x 14.9 mm)

0.587 in (14.9 mm)

CE, PSE, UL

125 °C (257 °F)

Fast

0251003

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

3 A

Pin Wire

1.19 J

-55 °C (-67 °F)

Tin/Lead

50 A

Rated Breaking Capacity at 125 VDC: 300 A

0.095 in (2.41 mm)

e0

125 V

Pico

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; METI; PSE; UL

125 °C (257 °F)

Very Fast

1621300100

Littelfuse

Electric Fuse

Inline/Holder

32 V

3 A

Tab/Blade

9 J

-40 °C (-40 °F)

1 kA

Bulk

0.748 in (19 mm)

0.197 in (5 mm)

20 ms

0.681 in (17.3 mm)

UL

85 °C (185 °F)

Very Fast

JLLN003.T

Littelfuse

Electric Fuse

Inline/Holder

300 V

160 V

3 A

End Cap

200 kA

Rated Breaking Capacity at 160 VDC: 50000 A

0.406 in (10.3 mm)

300 V

0.874 in (22.2 mm)

CE; CSA; CUL; UL

Fast

0434003

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

3 A

Wraparound

198 mJ

-55 °C (-67 °F)

Tin/Lead with Nickel barrier

35 A

434

Rated Breaking Capacity at 32 VDC: 35 A

0.063 in (1.6 mm)

0.032 in (0.81 mm)

e0

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

0267003.V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

3 A

Pin Wire

-55 °C (-67 °F)

Gold

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

0.093 in (2.36 mm)

Supplemental

e4

125 V

Pico

0.093 x 0.28 in (2.36 x 7.11 mm)

0.28 in (7.11 mm)

CSA; QPL

125 °C (257 °F)

Very Fast

LMF003

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

1206SFS300F/32

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

End Cap

1.2 J

-55 °C (-67 °F)

50 A

Rated Breaking Capacity at 32 VDC: 50 A

0.126 in (3.2 mm)

0.063 in (1.6 mm)

0.126 x 0.063 x 0.038 in (3.2 x 1.6 x 0.97 mm)

0.038 in (0.97 mm)

UL

125 °C (257 °F)

Slow

0263003.WRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

1.77 J

-55 °C (-67 °F)

Pure Tin

50 A

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

230003PDRTIP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

3 A

Pin Wire

77 J

-55 °C (-67 °F)

Tin

100 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; METI; PSE; UL

125 °C (257 °F)

Slow

SPF003R

Littelfuse

Electric Fuse

Through Hole Mount

1 KV

3 A

Pin Wire

20 kA

1.53 in (38.86 mm)

1.53 x 0.5 in (38.86 x 12.7 mm)

0.5 in (12.7 mm)

UL

272003

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

3 A

Tab/Blade

759 mJ

-55 °C (-67 °F)

Tin/Lead

10 kA

2 s

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

0.235 in (5.97 mm)

e0

125 V

Micro

0.235 x 0.287 in (5.97 x 7.3 mm)

0.287 in (7.3 mm)

CSA; UL

125 °C (257 °F)

Very Fast

232003.

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

17.187 J

-55 °C (-67 °F)

Nickel

100 A

Bulk; Tape And Reel

0.205 in (5.2 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CE

125 °C (257 °F)

Medium

0362003.H

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

3 A

End Cap

Bulk

0.25 in (6.35 mm)

32 V

8AG

1 in (25.4 mm)

Normal

BLN003

Littelfuse

Electric Fuse

Inline/Holder

250 V

3 A

End Cap

10 kA

2 m

Bulk

0.406 in (10.31 mm)

250 V

5AG

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Fast

0253003.HAT3L

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

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; PSE; QPL; TUV; 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.