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

08750.300MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Wire

43 mJ

-55 °C (-67 °F)

Tin

50 A

1 m

Bulk

0.142 in (3.6 mm)

e3

0.142 x 0.394 in (3.6 x 10 mm)

0.394 in (10 mm)

CUL; UL

125 °C (257 °F)

Slow

3430300002

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

02780.300H

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

0.235 in (5.97 mm)

125 V

Micro

0.287 in (7.3 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

0318.300MXBP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

68.9 mJ

-55 °C (-67 °F)

Tin

35 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)

Fast

LLNRK.300

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

300 mA

End Cap

200 kA

Rated Breaking Capacity at 125 VDC: 20000 A

0.563 in (14.3 mm)

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

CSA; UL

Time Delay

0239.300MRET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

615 mJ

-55 °C (-67 °F)

Tin

35 A

4 h

0.6

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; UL

125 °C (257 °F)

Time Lag

0239.300HXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

615 mJ

-55 °C (-67 °F)

Tin

35 A

4 h

0.6

Bulk

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; UL

125 °C (257 °F)

Time Lag

0274.300V

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

125 °C (257 °F)

Very Fast

593.300

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

300 mA

End Cap

Nickel

593

LMF.300

Littelfuse

Electric Fuse

Inline/Holder

300 V

300 mA

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

0875.300MRET1P

Littelfuse

Electric Fuse

300 mA

Pin Wire

-55 °C (-67 °F)

50 A

4 h

0.04

0.142 in (3.6 mm)

250 V

0.142 x 0.394 in (3.6 x 10 mm)

0.394 in (10 mm)

CSA, UL

125 °C (257 °F)

Time Lag

7945800089

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

300 mA

End Cap

-55 °C (-67 °F)

10 kA

Rated Breaking Capacity at 300 VDC: 10000 A

Bulk

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CSA; UL

125 °C (257 °F)

Time Delay

0268.300V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

300 mA

Pin Wire

-55 °C (-67 °F)

Gold

10 kA

4 h

Bulk

0.235 in (5.97 mm)

e4

125 V

Micro

0.235 x 0.29 in (5.97 x 7.37 mm)

0.29 in (7.37 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

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

02200031MXSLP

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

30 mJ

-55 °C (-67 °F)

Tin

35 A

4 h

0.03

0.177 in (4.5 mm)

Supplemental

e3

250 V

2AG

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CE, CSA, UL

125 °C (257 °F)

02200031DAT1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

30 mJ

-55 °C (-67 °F)

Tin

35 A

4 h

0.03

0.177 in (4.5 mm)

Supplemental

e3

250 V

2AG

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CE, CSA, UL

125 °C (257 °F)

0874.300MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

39 mJ

-55 °C (-67 °F)

Tin

50 A

4 h

0.039

Bulk

0.142 in (3.6 mm)

e3

250 V

0.142 x 0.394 in (3.6 x 10 mm)

0.394 in (10 mm)

UL

125 °C (257 °F)

Fast

0278.300V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

300 mA

Pin Wire

-55 °C (-67 °F)

Tin

100 kA

4 h

Bulk

0.235 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, UL

125 °C (257 °F)

Very Fast

235.300P

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

32 mJ

-55 °C (-67 °F)

Tin

35 A

235P

Bulk; Tape And Reel

0.205 in (5.2 mm)

e3

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CE; CSA; KTL; UL

125 °C (257 °F)

Fast

0235.300P

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

32.15 mJ

-55 °C (-67 °F)

Nickel

35 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; UL

125 °C (257 °F)

Fast

272.300

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

300 mA

Tab/Blade

9.45 mJ

-55 °C (-67 °F)

Tin Lead

10 kA

Rated Breaking Capacity at 125 VDC: 10000 A

0.235 in (5.97 mm)

e0

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

0312.300MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

68.9 mJ

-55 °C (-67 °F)

Tin

35 A

5 s

0.0689

Bulk

0.25 in (6.35 mm)

e3

250 V

3AG

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

0235.300MXBP

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

32.15 mJ

-55 °C (-67 °F)

35 A

5 s

Bulk

0.197 in (5 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CSA, CE, UL

125 °C (257 °F)

Fast

0318.300HXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

68.9 mJ

-55 °C (-67 °F)

Tin

35 A

5 s

Bulk

0.275 in (6.99 mm)

e3

3AG

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

0312.300MX

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

0674.300MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

29.5 mJ

Tin Lead

50 A

4 h

0.0296

Bulk

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

1980300040

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

500 mJ

-25 °C (-13 °F)

35 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

593.300S

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

Silver

0.394 in (10 mm)

e4

0.394 x 1.496 in (10 x 38 mm)

1.496 in (38 mm)

MIL-PRF-15160

Time Delay

LLSRK.300

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

300 mA

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

0.811 in (20.6 mm)

0.811 x 5 in (20.6 x 127 mm)

5 in (127 mm)

CSA; UL

Time Delay

FLQ.300

Littelfuse

Electric Fuse

Inline/Holder

500 V

300 V

300 mA

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

312.300P

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

68.9 mJ

Nickel

35 A

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

Fast

02200031DRT2P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

30 mJ

-55 °C (-67 °F)

Tin

35 A

4 h

0.03

0.177 in (4.5 mm)

Supplemental

e3

250 V

2AG

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CE, CSA, UL

125 °C (257 °F)

IDSR.300T

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

300 mA

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

0235.300MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

32.15 mJ

-55 °C (-67 °F)

Tin

35 A

5 s

Bulk

0.205 in (5.2 mm)

e3

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 x 0.205 in (20 x 5.2 mm)

0.787 in (20 mm)

CE, CSA, UL

125 °C (257 °F)

Fast

274.3

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

300 mA

Tab/Blade

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

1910300000

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

0278.300H

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

268.300

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

300 mA

Pin Wire

-55 °C (-67 °F)

Gold

10 kA

Rated Breaking Capacity at 125 VDC: 10000 A

0.235 in (5.97 mm)

e4

0.235 x 0.29 in (5.97 x 7.37 mm)

0.29 in (7.37 mm)

CSA; UL

125 °C (257 °F)

Very Fast

1980300000

Littelfuse

Electric Fuse

Inline/Holder

250 V

300 mA

End Cap

500 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)

CSA; UL

70 °C (158 °F)

Time Delay

0673.300MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

33.2 mJ

50 A

4 h

0.03

Bulk

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

1980300043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

500 mJ

-25 °C (-13 °F)

35 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

0326.300HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

300 mA

End Cap

690 mJ

-55 °C (-67 °F)

Nickel

100 A

4 h

0.69

Bulk

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; UL

125 °C (257 °F)

Time Lag

236.300

Littelfuse

Electric Fuse

Through Hole Mount

250 V

300 mA

Pin Wire

33 mJ

236

0.207 in (5.25 mm)

0.207 x 0.886 in (5.25 x 22.5 mm)

0.886 in (22.5 mm)

CSA; UL

Fast

0325.300HXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

300 mA

Pin Wire

690 mJ

-55 °C (-67 °F)

Tin

100 A

4 h

0.69

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; UL

125 °C (257 °F)

Time Lag

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.