300 mA Fuses 216

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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

0279.300V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

300 mA

Pin Wire

-55 °C (-67 °F)

Tin

100 kA

4 h

Bulk

0.25 in (6.35 mm)

e3

125 V

Micro

0.25 x 0.35 in (6.35 x 8.89 mm)

0.35 in (8.89 mm)

CSA, UL

85 °C (185 °F)

Very Fast

0325.300MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

300 mA

Pin Wire

1.23 J

-55 °C (-67 °F)

Tin

100 A

5 s

Rated Breaking Capacity at 125 VDC: 10000 A

0.69

Bulk

0.275 in (6.985 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; UL

125 °C (257 °F)

Time Delay

02200031MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 mA

End Cap

30 mJ

-55 °C (-67 °F)

Tin

35 A

1 s

Rated Breaking Capacity at 125 VDC: 10000 A

0.03

Bulk

0.189 in (4.8 mm)

Supplemental

e3

250 V

2AG

0.177 x 0.57 in (4.5 x 14.48 mm)

0.587 in (14.9 mm)

CE; UL

125 °C (257 °F)

0318.300VX

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

68.9 mJ

-55 °C (-67 °F)

Tin

35 A

318

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; CSA; UL

125 °C (257 °F)

Fast

592.300

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

300 mA

End Cap

Nickel

592

0672.300

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

29.5 mJ

Tin Lead

50 A

672

0.154 in (3.9 mm)

e0

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; UL

Fast

0239.300HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

615 mJ

-55 °C (-67 °F)

Nickel

35 A

4 h

0.6

Bulk

0.205 in (5.2 mm)

Supplemental

250 V

0.197 x 0.787 in (5 x 20 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CE; CSA; KC; UL

125 °C (257 °F)

Time Lag

FLM3/10

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

10 kA

0.406 in (10.31 mm)

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA; QPL; UL

Slow

0312.300VX

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

68.9 mJ

-55 °C (-67 °F)

Tin

35 A

312

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; UL

125 °C (257 °F)

Fast

0239.300MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

615 mJ

-55 °C (-67 °F)

Nickel

35 A

2 m

0.6

Bulk

0.205 in (5.2 mm)

Supplemental

250 V

0.197 x 0.787 in (5 x 20 mm)

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CE; CSA; KC; UL

125 °C (257 °F)

Time Lag

197-0300043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

38 mJ

-25 °C (-13 °F)

35 A

Tape And Reel

0.213 in (5.4 mm)

120 s

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

0672.300DRT4

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

29.5 mJ

Tin Lead

50 A

5 s

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

0.0295

Tape And Reel

0.154 in (3.9 mm)

e0

250 V

0.142 x 0.394 in (3.6 x 10 mm)

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; UL

Fast

02740.300H

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

300 mA

Wire

9.45 mJ

-55 °C (-67 °F)

10 kA

5 s

Bulk

0.25 in (6.35 mm)

125 V

Micro

0.35 in (8.89 mm)

CSA; QPL; UL

85 °C (185 °F)

Very Fast

274.300

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

300 mA

Pin Wire

9.45 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

1910300002

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

47 mJ

-25 °C (-13 °F)

35 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)

CUL; UL

70 °C (158 °F)

Very Fast

0325.300MXF31P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

1.23 J

-55 °C (-67 °F)

Tin

4 h

0.69

0.275 in (6.985 mm)

e3

250 V

3AB

0.275 x 1.288 in (6.985 x 32.72 mm)

1.288 in (32.72 mm)

CE, CSA, UL

125 °C (257 °F)

Time Lag

KLKD.300

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

300 mA

End Cap

-55 °C (-67 °F)

100 kA

4 m

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; IEC; UL

125 °C (257 °F)

Fast

KLKD.300H

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

300 mA

End Cap

-55 °C (-67 °F)

100 kA

4 m

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CE; CSA; IEC; UL

125 °C (257 °F)

Fast

3250.3MVXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

300 mA

Pin Wire

690 mJ

-55 °C (-67 °F)

Matte Tin

100 A

Rated Breaking Capacity at 125 VDC: 10000 A

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; CSA; UL

125 °C (257 °F)

Time Lag

197-0300-000

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

38 mJ

-25 °C (-13 °F)

35 A

Bulk

0.205 in (5.2 mm)

120 s

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

0313.300VXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

730 mJ

-55 °C (-67 °F)

Nickel

35 A

313

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)

Time Lag

0239.300P

Littelfuse

Electric Fuse

Inline/Holder

125 V

300 mA

End Cap

615 mJ

-55 °C (-67 °F)

Nickel

35 A

239

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; UL

125 °C (257 °F)

Time Lag

KLK.300

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

300 mA

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)

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA; UL

Fast

FLM.300

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 mA

End Cap

10 kA

5 s

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

Bulk

0.406 in (10.31 mm)

250 V

0.394 x 1.496 in (10 x 38 mm)

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; QPL; UL

Time Delay

239.300

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

613 mJ

-55 °C (-67 °F)

Nickel

35 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)

CSA; KTL; PSE; UL

125 °C (257 °F)

Time Lag

KLDR.300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 mA

End Cap

11.1 mJ

Nickel

200 kA

12 s

Rated Breaking Capacity at 300 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

Time Delay

CCMR.300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 mA

End Cap

200 kA

Rated Breaking Capacity at 300 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

Time Delay

0272.300H

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

300 mA

Pin Wire

9.45 mJ

-55 °C (-67 °F)

Tin

10 kA

4 h

Bulk

0.235 in (5.97 mm)

e3

125 V

Micro

0.235 x 0.287 in (5.97 x 7.3 mm)

0.287 in (7.3 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

235.300XE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

33 mJ

35 A

0.236 in (6 mm)

0.236 x 0.886 in (6 x 22.5 mm)

0.886 in (22.5 mm)

CSA; KTL; PSE; UL

Fast

239.300P

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

613 mJ

-55 °C (-67 °F)

Matte Tin

35 A

239P

Bulk; Tape And Reel

0.787 in (20 mm)

e3

0.787 x 0.205 in (20 x 5.2 mm)

0.205 in (5.2 mm)

CE; CSA; KTL; UL

125 °C (257 °F)

Time Lag

FLSR0.3ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 mA

End Cap

200 kA

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

0315.300MXBP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

730 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

0674.300

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

29.5 mJ

Tin Lead

50 A

674

0.154 in (3.9 mm)

e0

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; UL

Fast

FLSR.300T

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 mA

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

3400300002

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

30 mJ

-25 °C (-13 °F)

35 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

3430300000

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

1.2 J

-25 °C (-13 °F)

35 A

Bulk

0.248 in (6.3 mm)

5 s

0.248 x 1.26 in (6.3 x 32 mm)

1.26 in (32 mm)

CSA; UL

70 °C (158 °F)

Time Delay

0674.300DRT4

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

29.5 mJ

Tin Lead

50 A

4 h

0.0296

Tape And Reel

0.154 in (3.9 mm)

e0

250 V

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; UL

Fast

592.300S

Littelfuse

Electric Fuse

Inline/Holder

500 V

500 V

300 mA

End Cap

Silver

592

e4

CCMR.300TXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 mA

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.406 in (10.3 mm)

600 V

0.406 x 1.5 in (10.3 x 38.1 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

FLA3/10

Littelfuse

Electric Fuse

Inline/Holder

125 V

300 mA

End Cap

10 kA

0.406 in (10.31 mm)

Indicator

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

UL

Slow

0315.300MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

730 mJ

-60 °C (-76 °F)

35 A

5 s

Bulk

0.275 in (6.99 mm)

3AG

1.273 x 0.275 in (32.34 x 6.98 mm)

1.288 in (32.72 mm)

CE; CSA; UL

125 °C (257 °F)

Time Lag

0312.300VXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

68.9 mJ

-55 °C (-67 °F)

Nickel

35 A

312

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

SOO.300

Littelfuse

Electric Fuse

Inline/Holder

125 V

300 mA

End Cap

10 kA

UL

Time Delay

0325.300MX52P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

1.23 J

-55 °C (-67 °F)

Tin

4 h

0.69

0.275 in (6.985 mm)

e3

250 V

3AB

0.275 x 1.288 in (6.985 x 32.72 mm)

1.288 in (32.72 mm)

CE, CSA, UL

125 °C (257 °F)

Time Lag

0673.300DRT4

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

33.2 mJ

50 A

4 h

0.03

Tape And Reel

0.154 in (3.9 mm)

250 V

0.154 x 0.433 in (3.9 x 11 mm)

0.433 in (11 mm)

CSA; UL

Slow

279.300

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

300 mA

Pin Wire

9.45 mJ

-55 °C (-67 °F)

Tin Lead

10 kA

5 s

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

0.25 in (6.35 mm)

e0

125 V

Micro

0.25 x 0.35 in (6.35 x 8.89 mm)

0.35 in (8.89 mm)

CSA; UL

85 °C (185 °F)

Very Fast

FLNR0.3ID

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 mA

End Cap

200 kA

0.563 in (14.3 mm)

Indicator

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Time Delay

326.300

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

690 mJ

0.25 in (6.35 mm)

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CSA; UL

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.