50 mA Fuses 203

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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

1960050000

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

19 mJ

-25 °C (-13 °F)

150 A

Bulk

0.205 in (5.2 mm)

10 ms

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

BSI; CUL; IEC; SEMKO; UL; VDE

70 °C (158 °F)

Time Lag

37400500410

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

11 mJ

-40 °C (-40 °F)

Matte Tin

50 A

1 m

Bulk

0.335 in (8.5 mm)

e3

250 V

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CSA, UL

85 °C (185 °F)

Time Lag

374005000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

5.6 mJ

-40 °C (-40 °F)

Matte Tin

50 A

1 m

Ammo Pack; Tape

0.335 in (8.5 mm)

e3

TR5

0.315 in (8 mm)

CSA; UL

85 °C (185 °F)

Time Lag

30300500131

Littelfuse

Electric Fuse

Through Hole Mount

125 V

63 V

50 mA

Pin Wire

70 μJ

-25 °C (-13 °F)

50 A

1 m

Pre Arcing Time: Open within 60 s at 200% Rated Current

Bulk

0.236 in (6 mm)

0.315 in (8 mm)

CSA; UL

70 °C (158 °F)

Fast

30300500421

Littelfuse

Electric Fuse

Through Hole Mount

125 V

63 V

50 mA

Pin Wire

70 μJ

-25 °C (-13 °F)

50 A

1 m

Pre Arcing Time: Open within 60 s at 200% Rated Current

Bulk

0.236 in (6 mm)

0.315 in (8 mm)

CSA; UL

70 °C (158 °F)

Fast

0676.050MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

500 μJ

Tin Lead

35 A

0.0005

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

0279.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 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

0216.050MXBP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

190 μJ

-55 °C (-67 °F)

Tin

1.5 kA

0.0001

Bulk

0.205 in (5.2 mm)

e3

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)

CCC; CE; CSA; IEC; SEMKO; UL; VDE

125 °C (257 °F)

Fast

3700050000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

350 μJ

-40 °C (-40 °F)

Matte Tin

35 A

370

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

e3

20 ms

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; SEMKO; UL; VDE

85 °C (185 °F)

Fast

217.050

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

50 mA

End Cap

190 μJ

-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)

CCC; CE; IEC; SEMKO; VDE

125 °C (257 °F)

Fast

1950050002

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

20 mJ

-25 °C (-13 °F)

35 A

Bulk

0.205 in (5.2 mm)

10 ms

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

BSI; CCEE; CUL; DIN; IEC; IMQ; SEMKO; UL; VDE

70 °C (158 °F)

Time Lag

2010050043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

9 mJ

-25 °C (-13 °F)

Matte Tin

80 A

Tape And Reel

0.232 in (5.9 mm)

e3

5 ms

0.232 x 0.827 in (5.9 x 21 mm)

0.827 in (21 mm)

DIN 41571; UL

70 °C (158 °F)

Medium Time Lag

273.050

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

50 mA

Tab/Blade

10 μJ

-55 °C (-67 °F)

10 kA

5 s

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

0.25 in (6.35 mm)

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

272.050

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

50 mA

Tab/Blade

10 μJ

-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

0278.050H

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

70 μJ

-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

0242.050HAT1

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

50 mA

Pin Wire

100 μJ

-40 °C (-40 °F)

Tin

4 kA

4 h

0.0001

Ammo Pack; Tape And Reel

0.119 in (3.02 mm)

e3

250 V

0.119 x 0.331 in (3.02 x 8.4 mm)

0.331 in (8.4 mm)

UL

125 °C (257 °F)

02780.050H

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Wire

66.6 μJ

-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

02780.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

66.6 μJ

-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

39600500000

Littelfuse

Electric Fuse

Through Hole Mount

125 V

50 mA

Pin Wire

5.6 mJ

-40 °C (-40 °F)

Tin

100 A

1 m

0.0056

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

125 V

TE5

0.335 x 0.157 x 0.315 in (8.5 x 4 x 8 mm)

0.315 in (8 mm)

UL

85 °C (185 °F)

Time Lag

0216.050MRET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

190 μJ

-55 °C (-67 °F)

Tin

1.5 kA

0.0001

Tape And Reel

0.236 in (6 mm)

e3

250 V

0.197 x 0.787 in (5 x 20 mm)

0.236 x 0.886 in (6 x 22.5 mm)

0.886 in (22.5 mm)

CCC; CE; CSA; IEC; SEMKO; UL; VDE

125 °C (257 °F)

Fast

0304.050HR

Littelfuse

Electric Fuse

Surface Mount

277 V

277 V

50 mA

J Bend

190 μJ

-40 °C (-40 °F)

1.5 kA

10 s

Tape And Reel

0.54 in (13.71 mm)

0.237 in (6.03 mm)

277 V

Pico

0.24 in (6.09 mm)

CE; CUL; IEC; UL

60 °C (140 °F)

02620.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.235 in (5.97 mm)

Micro

0.29 in (7.37 mm)

CSA; UL

125 °C (257 °F)

Very Fast

02680.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

-55 °C (-67 °F)

10 kA

2 s

Bulk

0.235 in (5.97 mm)

Micro

0.29 in (7.37 mm)

CSA; UL

125 °C (257 °F)

Very Fast

02720.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

66.6 μJ

-55 °C (-67 °F)

10 kA

5 s

Bulk

0.235 in (5.97 mm)

Micro

0.287 in (7.3 mm)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

02730.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

66.6 μJ

-55 °C (-67 °F)

10 kA

5 s

Bulk

0.25 in (6.35 mm)

Micro

0.35 in (8.89 mm)

CSA; QPL; UL

85 °C (185 °F)

Very Fast

37200500075

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

10.8 mJ

-40 °C (-40 °F)

35 A

20 ms

0.335 in (8.5 mm)

TR5

0.315 in (8 mm)

CCC; CE; CUL; KC; UL; VDE

85 °C (185 °F)

Time Lag

0274.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 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

1960050043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

19 mJ

-25 °C (-13 °F)

150 A

Tape And Reel

0.213 in (5.4 mm)

10 ms

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

BSI; CUL; IEC; SEMKO; UL; VDE

70 °C (158 °F)

Time Lag

0219.050MXAEP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

Pin Wire

17 mJ

-55 °C (-67 °F)

Tin

150 A

10 ms

0.017

0.22 in (5.6 mm)

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)

CCC; CE; CUL; SEMKO; UL

125 °C (257 °F)

Time Lag

0662.050HXLL

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

50 mA

Pin Wire

400 μJ

-40 °C (-40 °F)

Tin

35 A

662

Rated Breaking Capacity at 250 VDC: 35 A

Bulk

0.335 in (8.5 mm)

e3

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CCC; KTL; PSE; UL; VDE

85 °C (185 °F)

Fast

02170.05MXGP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

490 μJ

-55 °C (-67 °F)

35 A

3 ms

Pre Arcing Time: Open within 3 ms at 400% Rated Current

Bulk

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CCC; CE; CSA; CUL; KC; SEMKO; UL; VDE

125 °C (257 °F)

Fast

02170.05MXBP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

490 μJ

-55 °C (-67 °F)

35 A

3 ms

Pre Arcing Time: Open within 3 ms at 400% Rated Current

Bulk

0.205 in (5.2 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CCC; CE; CSA; CUL; KC; SEMKO; UL; VDE

125 °C (257 °F)

Fast

02170.05MRET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

490 μJ

-55 °C (-67 °F)

35 A

3 ms

Pre Arcing Time: Open within 3 ms at 400% Rated Current

Tape And Reel

0.22 in (5.6 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

CCC; CE; CSA; CUL; KC; SEMKO; UL; VDE

125 °C (257 °F)

Fast

37200500000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

10 mJ

-40 °C (-40 °F)

Matte Tin

35 A

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

e3

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; KTL; SEMKO; UL; VDE

85 °C (185 °F)

Time Lag

0663.050

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

30 mJ

35 A

663

0.335 in (8.5 mm)

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CSA; IEC; SEMKO; UL; VDE

Time Lag

0219.050MRAET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

17 mJ

-55 °C (-67 °F)

150 A

0.017

Tape And Reel

0.217 in (5.5 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.217 x 0.846 in (5.5 x 21.5 mm)

0.846 in (21.5 mm)

CE, UL

125 °C (257 °F)

Time Lag

274.05

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

50 mA

Tab/Blade

10 μJ

-55 °C (-67 °F)

10 kA

274

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

227.050

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

50 mA

Pin Wire

200 μJ

35 A

227

0.207 in (5.25 mm)

0.207 x 0.886 in (5.25 x 22.5 mm)

0.886 in (22.5 mm)

CCC; CSA; IEC; KTL; SEMKO; SEV; VDE

Fast

0269.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

-55 °C (-67 °F)

Gold

10 kA

Bulk

e4

CSA; QPL; UL

125 °C (257 °F)

Very Fast

216.050

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

50 mA

End Cap

190 μJ

-55 °C (-67 °F)

Nickel

1.5 kA

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)

CCC; CE; CSA; IEC; SEMKO; UL

125 °C (257 °F)

Fast

216.050PMRET1

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

190 μJ

-55 °C (-67 °F)

Matte Tin

1.5 kA

216P

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)

CCC; CE; CSA; IEC; SEMKO; UL; VDE

125 °C (257 °F)

Fast

20100500301P

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

9 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

3740050000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

5.6 mJ

-40 °C (-40 °F)

Tin

50 A

Tape And Reel

0.335 in (8.5 mm)

e3

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CSA; UL

85 °C (185 °F)

Time Lag

3700050041

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

350 μJ

-40 °C (-40 °F)

Matte Tin

35 A

0.0003

Bulk

0.335 in (8.5 mm)

Supplemental

e3

250 V

4 Ω

20 ms

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; SEMKO; UL; VDE

85 °C (185 °F)

Fast

0218.050HXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

17 mJ

-55 °C (-67 °F)

Tin

35 A

Bulk

0.236 in (6 mm)

e3

0.236 x 0.886 in (6 x 22.5 mm)

0.886 in (22.5 mm)

CCC; CE; CSA; IEC; KC; SEMKO; UL; VDE

125 °C (257 °F)

Time Lag

0219.050XAP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

17 mJ

-55 °C (-67 °F)

Nickel

150 A

219XAP

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)

IEC; SEMKO; UL

125 °C (257 °F)

Time Lag

218.050XP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

7.1 mJ

-55 °C (-67 °F)

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)

CCC; CE; CSA; IEC; KTL; SEMKO; UL

125 °C (257 °F)

Time Lag

20100500531P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

9 mJ

-25 °C (-13 °F)

80 A

5 ms

Pre Arcing Time: Open within 5 ms at 1000% Rated Current

Tape And Reel

0.232 in (5.9 mm)

0.197 x 0.787 in (5 x 20 mm)

Indicator

0.205 x 0.787 in (5.2 x 20 mm)

0.827 in (21 mm)

CUL; UL

70 °C (158 °F)

Medium 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.