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

37200500511

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

10.8 mJ

-40 °C (-40 °F)

Matte Tin

35 A

20 ms

0.01

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)

CCC; CE; CUL; KC; UL; VDE

85 °C (185 °F)

Time Lag

37400500430

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

11 mJ

-40 °C (-40 °F)

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

262.050

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

50 mA

Tab/Blade

-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

217.050XP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

200 μJ

-55 °C (-67 °F)

Matte Tin

35 A

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; KTL; SEMKO; UL

125 °C (257 °F)

Fast

02720.050H

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

2010050040

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

9 mJ

-25 °C (-13 °F)

Matte Tin

80 A

Bulk

0.213 in (5.4 mm)

e3

5 ms

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

DIN

70 °C (158 °F)

Medium Time Lag

216.050XE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

50 mA

Pin Wire

190 μJ

1.5 kA

0.236 in (6 mm)

0.236 x 0.886 in (6 x 22.5 mm)

0.886 in (22.5 mm)

CCC; CSA; IEC; PSE; SEMKO; UL; VDE

Fast

0262.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 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

3740050043

Littelfuse

Electric Fuse

50 mA

-40 °C (-40 °F)

Matte Tin

50 A

5.6

0.335 in (8.5 mm)

Supplemental

e3

250 V

12.5 Ω

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

0662.050HXSL

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

0662.050MALL

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

Ammo Pack

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

0274.050H

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

0.25 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; QPL; UL

125 °C (257 °F)

Very Fast

37000500000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

400 μJ

-40 °C (-40 °F)

Tin

35 A

20 ms

Ammo Pack; Tape

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)

CCC; CE; CUL; VDE; UL

85 °C (185 °F)

Fast

0305.050M

Littelfuse

Electric Fuse

Through Hole Mount

277 V

277 V

50 mA

Pin Wire

190 μJ

-40 °C (-40 °F)

1.5 kA

2 ms

Bulk

0.614 in (15.6 mm)

Pico

0.354 in (9 mm)

CUL; IEC; UL

50 °C (122 °F)

0242.050UA

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

50 mA

Pin Wire

100 μJ

4 kA

Rated Breaking Capacity at 250 VDC: 4000 A

Tape And Reel

0.331 in (8.4 mm)

0.331 x 0.119 in (8.4 x 3.02 mm)

0.119 in (3.02 mm)

UL

0663.050ZRLL

Littelfuse

Electric Fuse

50 mA

-40 °C (-40 °F)

35 A

0.03

Tape And Reel

0.335 in (8.5 mm)

250 V

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CSA, SEMKO, UL, VDE

85 °C (185 °F)

Time Lag

0676.050DRT4

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

500 μJ

Tin Lead

35 A

0.0005

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

02740.050V

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)

125 V

Micro

0.35 in (8.89 mm)

CSA; QPL; UL

Very Fast

0218.050TXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

17 mJ

-55 °C (-67 °F)

Nickel

35 A

10 ms

0.017

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)

CCC, CE, CSA, KC, SEMKO, UL, VDE

125 °C (257 °F)

Time Lag

37400500000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

11 mJ

-40 °C (-40 °F)

Tin

50 A

1 m

Ammo Pack

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

1950050000

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

20 mJ

-25 °C (-13 °F)

35 A

195

Bulk

0.205 in (5.2 mm)

10 ms

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

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

70 °C (158 °F)

Time Lag

3720050000

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

20 ms

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

37200500430

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

10 mJ

-40 °C (-40 °F)

Matte Tin

35 A

Bulk

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

278.050

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

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

20100500021P

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

0216.050HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

190 μJ

-55 °C (-67 °F)

Nickel

1.5 kA

0.0001

Bulk

0.205 in (5.2 mm)

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

226.050

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

50 mA

Pin Wire

190 μJ

1.5 kA

226

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; UL; VDE

Fast

3950050000

Littelfuse

Electric Fuse

Through Hole Mount

125 V

50 mA

Pin Wire

100 μJ

-40 °C (-40 °F)

Matte Tin

100 A

395

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

5 s

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)

Fast

274.050

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

60 μJ

-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

39500500440

Littelfuse

Electric Fuse

Through Hole Mount

125 V

50 mA

Pin Wire

100 μJ

-40 °C (-40 °F)

Tin

100 A

1 m

Bulk

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)

Fast

02790.050V

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)

125 V

Micro

0.35 in (8.89 mm)

CSA; QPL; UL

85 °C (185 °F)

Very Fast

0268.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 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

0663.050HXLL

Littelfuse

Electric Fuse

50 mA

-40 °C (-40 °F)

35 A

0.03

0.335 in (8.5 mm)

250 V

0.335 x 0.333 in (8.5 x 8.45 mm)

0.333 in (8.45 mm)

CSA, SEMKO, UL, VDE

85 °C (185 °F)

Time Lag

0216.050MRET5

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

190 μJ

-55 °C (-67 °F)

Tin

1.2 kA

Tape And Reel

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; SEMKO; UL; VDE

125 °C (257 °F)

Fast

0217.050MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

490 μJ

-55 °C (-67 °F)

Tin

35 A

3 ms

0.0004

Bulk

0.22 in (5.6 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)

0.846 in (21.5 mm)

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

125 °C (257 °F)

Very Fast

3030050042

Littelfuse

Electric Fuse

Through Hole Mount

125 V

63 V

50 mA

Pin Wire

70 μJ

-25 °C (-13 °F)

Matte Tin

50 A

Rated Breaking Capacity at 63 VDC: 60 A

Bulk

0.236 in (6 mm)

Supplemental

e3

125 V

5 s

Micro

0.236 x 0.315 in (6 x 8 mm)

0.315 in (8 mm)

UL

70 °C (158 °F)

Fast

37300500410

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

100 μJ

-40 °C (-40 °F)

Tin

50 A

5 s

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; CUL; UL

85 °C (185 °F)

Very Fast

216.050XP

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

190 μJ

-55 °C (-67 °F)

Matte Tin

1.5 kA

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)

CCC; CE; CSA; IEC; SEMKO; UL

125 °C (257 °F)

Fast

0676.050

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

500 μJ

Tin Lead

35 A

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

0662.050

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

50 mA

Pin Wire

400 μJ

-40 °C (-40 °F)

Matte Tin

35 A

662

Rated Breaking Capacity at 250 VDC: 35 A

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

0216.050VXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

190 μJ

-55 °C (-67 °F)

Tin

1.2 kA

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; SEMKO; UL; VDE

125 °C (257 °F)

Fast

2010050002

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

9 mJ

-25 °C (-13 °F)

Matte Tin

80 A

Bulk

0.205 in (5.2 mm)

e3

5 ms

0.205 x 0.787 in (5.2 x 20 mm)

0.787 in (20 mm)

DIN 41571; UL

70 °C (158 °F)

Medium Time Lag

218.050

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

6.91 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

0304.050ZR

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)

1930050043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

5 mJ

-25 °C (-13 °F)

35 A

Tape And Reel

0.213 in (5.4 mm)

20 ms

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

CUL; DIN; IEC; SEMKO; VDE; UL

70 °C (158 °F)

Very Fast

216.050PH

Littelfuse

Electric Fuse

Inline/Holder

250 V

50 mA

End Cap

190 μJ

-55 °C (-67 °F)

Matte Tin

1.5 kA

216P

Bulk

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

3720050043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

50 mA

Pin Wire

10 mJ

-40 °C (-40 °F)

Matte Tin

35 A

Bulk

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

0278.050V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

50 mA

Pin Wire

66.6 μJ

-55 °C (-67 °F)

Tin

10 kA

4 h

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

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

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.