125 mA Fuses 670

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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

0251.125PXT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-55 °C (-67 °F)

Tin

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

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)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

216.125PH

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

5.45 mJ

-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)

CE; CSA; IEC; SEMKO; UL; VDE

125 °C (257 °F)

Fast

0251.125MAT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 1000 ms at 200% 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)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

325.125

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

100 mJ

Tin/Lead

0.275 in (6.99 mm)

e0

0.275 x 1.275 in (6.99 x 32.39 mm)

1.275 in (32.39 mm)

CSA

Slow

374012500

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

44 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

0216.125TXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

5.46 mJ

-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

0451.125MRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

125 mA

Wraparound

2.86 mJ

-55 °C (-67 °F)

50 A

5 s

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

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; CUL; UL

125 °C (257 °F)

Very Fast

0251.125L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-55 °C (-67 °F)

Matte Tin

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 1 s at 200% Rated Current

0.0018

0.095 in (2.41 mm)

e3

125 V

Pico

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

1930125000

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

14 mJ

-25 °C (-13 °F)

35 A

Bulk

0.205 in (5.2 mm)

20 ms

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CUL; DIN; IEC; SEMKO; VDE; UL

70 °C (158 °F)

Very Fast

0253.125VRT3L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-55 °C (-67 °F)

Pure Tin

50 A

253

Rated Breaking Capacity at 125 VDC: 300 A

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)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

0326.125VXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

125 mA

End Cap

-55 °C (-67 °F)

Nickel

4 h

0.1

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

125 °C (257 °F)

Time Lag

0451.125

Littelfuse

Electric Fuse

125 mA

-55 °C (-67 °F)

Tin/Lead

50 A

0.0028

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

125 V

1.7 Ω

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; UL

125 °C (257 °F)

Very Fast

20101250021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

57 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

0263.125MXT1L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

2.51 mJ

-55 °C (-67 °F)

Tin

50 A

Bulk

0.155 in (3.94 mm)

e3

0.155 x 0.28 in (3.94 x 7.11 mm)

0.28 in (7.11 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0218.125MXGP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

146.5 mJ

-55 °C (-67 °F)

Tin

35 A

0.1465

Bulk

0.205 in (5.2 mm)

Supplemental

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; KC; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0263.125

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

2.51 mJ

-55 °C (-67 °F)

Tin Lead

50 A

Tape And Reel

0.145 in (3.68 mm)

e0

0.145 x 0.3 in (3.68 x 7.62 mm)

0.3 in (7.62 mm)

CSA; UL

125 °C (257 °F)

Very Fast

37401250000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

52 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

1930125043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

14 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

0263.125MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

2.51 mJ

-55 °C (-67 °F)

Tin

50 A

100 ms

Ammo Pack

0.155 in (3.94 mm)

e3

250 V

Pico

0.155 x 0.28 in (3.94 x 7.11 mm)

CSA, UL

125 °C (257 °F)

Very Fast

0285.125HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

28 mJ

-55 °C (-67 °F)

Gold

1.5 kA

50 ms

Bulk

0.205 in (5.2 mm)

e4

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)

125 °C (257 °F)

315.125P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

152 mJ

Matte Tin

35 A

0.275 in (6.99 mm)

e3

0.275 x 1.275 in (6.99 x 32.39 mm)

1.275 in (32.39 mm)

CE; CSA; METI; PSE; UL

Slow

R271.125

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

125 mA

End Cap

1.63 mJ

-55 °C (-67 °F)

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 1 s at 200% Rated Current

Tape And Reel

0.08 in (2.032 mm)

Nano

0.225 in (5.715 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0272.125V

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 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

0665.125ZRLL

Littelfuse

Electric Fuse

125 mA

-40 °C (-40 °F)

50 A

4 h

0.0567

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, UL

85 °C (185 °F)

Time Lag

0251.125HAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-55 °C (-67 °F)

Matte Tin

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

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)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

24101250021

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

53 mJ

-25 °C (-13 °F)

80 A

Bulk

0.205 in (5.2 mm)

5 ms

0.197 x 0.984 in (5 x 25 mm)

Indicator

0.984 in (25 mm)

70 °C (158 °F)

Medium Time Lag

CAT25C03V-G

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

2.89 mJ

Tin

35 A

318

0.276 in (7 mm)

e3

0.276 x 1.288 in (7 x 32.72 mm)

1.288 in (32.72 mm)

CE; CSA; UL

Fast

216.125PV

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

5.45 mJ

-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)

CE; CSA; IEC; SEMKO; UL; VDE

125 °C (257 °F)

Fast

0325.125MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

100 mJ

-55 °C (-67 °F)

Tin

100 A

5 s

0.1

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

125 °C (257 °F)

Time Delay

0215.125MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Wire

33 mJ

-55 °C (-67 °F)

Tin

1.5 kA

Bulk

0.236 in (6 mm)

e3

250 V

5 µs

0.197 x 0.787 in (5 x 20 mm)

0.886 in (22.5 mm)

CE; CUL; SEMKO; UL

125 °C (257 °F)

Time Lag

02531.25HR

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-55 °C (-67 °F)

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

0.11 in (2.8 mm)

125 V

Pico

0.28 in (7.11 mm)

CSA; CUL; QPL; UL

125 °C (257 °F)

Very Fast

0253.125HAT3L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-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; QPL; UL

125 °C (257 °F)

Very Fast

0251.125VRL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-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; QPL; UL

125 °C (257 °F)

Very Fast

0215.125MXG

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

33 mJ

-55 °C (-67 °F)

1.5 kA

0.033

0.22 in (5.6 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.22 x 0.846 in (5.6 x 21.5 mm)

0.846 in (21.5 mm)

125 °C (257 °F)

Time Lag

289.125

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

2.86 mJ

Tin Lead

35 A

289

0.177 in (4.5 mm)

e0

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CSA; MIL; PSE; UL

Fast

0251.125PXT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-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)

CSA; QPL; UL

125 °C (257 °F)

Very Fast

02010125MRT1L

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

33 mJ

-25 °C (-13 °F)

80 A

5 ms

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

0318.125MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

2.89 mJ

-55 °C (-67 °F)

Tin

35 A

5 s

Tape And Reel

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

0215.125MXBP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

33 mJ

-55 °C (-67 °F)

1.5 kA

5 ms

Pre Arcing Time: Open within 0.005 s at 1000% Rated Current

Bulk

0.22 in (5.6 mm)

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

CCC; CE; CUL; SEMKO; SEV; UL

125 °C (257 °F)

Time Lag

0875.125MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

7.2 mJ

-55 °C (-67 °F)

50 A

4 h

0.007

Bulk

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

1960125000

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

130 mJ

-25 °C (-13 °F)

150 A

Bulk

0.205 in (5.2 mm)

20 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

37201250511

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 mA

Pin Wire

109.4 mJ

-40 °C (-40 °F)

Matte Tin

35 A

20 ms

0.066

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

02531.25HX

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-55 °C (-67 °F)

50 A

1 s

Pre Arcing Time: Open within 1 s at 200% Rated Current

Bulk

0.103 in (2.61 mm)

125 V

Pico

0.28 in (7.11 mm)

CSA; CUL; QPL; UL

125 °C (257 °F)

Very Fast

274.125

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

125 mA

Tab/Blade

690 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

02531.25MXT3L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

1.74 mJ

-55 °C (-67 °F)

Pure Tin

50 A

253

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

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; QPL; UL

125 °C (257 °F)

Very Fast

0218.125MXBP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

146.5 mJ

-55 °C (-67 °F)

Tin

35 A

0.1465

Bulk

0.205 in (5.2 mm)

Supplemental

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; KC; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0235.125P

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 mA

End Cap

2.73 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

279.125

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

125 mA

Pin Wire

690 μJ

-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

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.