1.25 A Fuses 32

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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

38211250410

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Wire

6.88 J

-40 °C (-40 °F)

Tin

100 A

150 ms

4.5

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; PSE; UL; VDE

85 °C (185 °F)

Time Lag

38211250430

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Wire

6.88 J

-40 °C (-40 °F)

Tin

100 A

150 ms

4.5

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; PSE; UL; VDE

85 °C (185 °F)

Time Lag

80411250000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Wire

30 J

-40 °C (-40 °F)

Tin

150 A

1 s

Ammo Pack

0.488 in (12.4 mm)

0.252 in (6.4 mm)

e3

250 V

TE7

0.488 x 0.252 x 0.386 in (12.4 x 6.4 x 9.8 mm)

0.362 in (9.2 mm)

125 °C (257 °F)

Time Lag

80411250440

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Wire

30 J

-40 °C (-40 °F)

Tin

150 A

1 s

Bulk

0.488 in (12.4 mm)

0.252 in (6.4 mm)

e3

250 V

TE7

0.488 x 0.252 x 0.386 in (12.4 x 6.4 x 9.8 mm)

0.362 in (9.2 mm)

125 °C (257 °F)

Time Lag

35611250029

Littelfuse

Electric Fuse

Inline/Holder

440 V

1.25 A

End Cap

3.1 J

-25 °C (-13 °F)

Nickel

1 kA

10 ms

Pre Arcing Time: Open within 0.01 s at 1000% Rated Current

Bulk

0.25 in (6.35 mm)

3AB

0.248 x 1.26 in (6.3 x 32 mm)

1.25 in (31.75 mm)

CE; CUL; UL

70 °C (158 °F)

Slow

80711250440

Littelfuse

Electric Fuse

Through Hole Mount

300 V

300 V

1.25 A

Wire

3 kJ

-40 °C (-40 °F)

Tin

100 A

1 s

Bulk

0.488 in (12.4 mm)

0.252 in (6.4 mm)

e3

300 V

0.488 x 0.252 x 0.362 in (12.4 x 6.4 x 9.2 mm)

0.362 in (9.2 mm)

IEC; CUL; PSE; UL

125 °C (257 °F)

Time Lag

20111250001P

Littelfuse

Electric Fuse

Inline/Holder

250 V

1.25 A

End Cap

5.12 J

-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

20111250021P

Littelfuse

Electric Fuse

Inline/Holder

250 V

1.25 A

End Cap

5.12 J

-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

B1250T

Bourns

Electric Fuse

Surface Mount

600 V

1.25 A

End Cap

14 J

-55 °C (-67 °F)

Tin with Nickel barrier

Tape And Reel

0.38 in (9.65 mm)

0.12 in (3.05 mm)

e3

600 V

0.38 x 0.12 x 0.12 in (9.65 x 3.05 x 3.05 mm)

0.12 in (3.05 mm)

UL

125 °C (257 °F)

39211250440

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Pin Wire

11.95 J

-40 °C (-40 °F)

Matte Tin

35 A

20 ms

9.75

Bulk

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

250 V

TE5

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

0.315 in (8 mm)

CCC; CE; CUL; KC; PSE; VDE; UL

125 °C (257 °F)

Time Lag

39711250000

Littelfuse

Electric Fuse

Through Hole Mount

125 V

1.25 A

Pin Wire

7.34 J

-40 °C (-40 °F)

Tin

50 A

3 m 20 s

5

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.315 in (8 mm)

e3

125 V

TE5

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

0.157 in (4 mm)

CUL; UL

125 °C (257 °F)

Slow

39711250440

Littelfuse

Electric Fuse

Through Hole Mount

125 V

1.25 A

Pin Wire

7.34 J

-40 °C (-40 °F)

Tin

50 A

3 m 20 s

5

Bulk

0.335 in (8.5 mm)

0.315 in (8 mm)

e3

125 V

TE5

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

0.157 in (4 mm)

CUL; UL

125 °C (257 °F)

Slow

FCD121125TP

Littelfuse

Electric Fuse

Surface Mount

32 V

64 V

1.25 A

Wraparound

10 mJ

-55 °C (-67 °F)

Tin

50 A

FCD12

Tape And Reel

0.126 in (3.2 mm)

0.063 in (1.6 mm)

e3

0.126 x 0.063 x 0.024 in (3.2 x 1.6 x 0.6 mm)

0.024 in (0.6 mm)

IEC; UL

125 °C (257 °F)

Fast

37011250000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Pin Wire

310 mJ

-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; PSE; UL; VDE

85 °C (185 °F)

Fast

37411250000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Pin Wire

4.453 J

-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

37411250430

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Pin Wire

4.453 J

-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

46211250000

Littelfuse

Electric Fuse

Surface Mount

250 V

250 V

1.25 A

Wraparound

5.2 J

-40 °C (-40 °F)

Tin

150 A

10 ms

5.2

Tape And Reel

0.413 in (10.5 mm)

0.177 in (4.5 mm)

e3

250 V

Nano

0.177 x 0.177 x 0.413 in (4.5 x 4.5 x 10.5 mm)

0.177 in (4.5 mm)

CUL; PSE; UL

85 °C (185 °F)

Time Lag

39111250000

Littelfuse

Electric Fuse

Through Hole Mount

65 V

65 V

1.25 A

Pin Wire

450 mJ

-40 °C (-40 °F)

50 A

2 s

Rated Breaking Capacity at 65 VDC: 50 A

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.157 in (4 mm)

65 V

TE5

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

0.315 in (8 mm)

CUL; UKCA; UL

125 °C (257 °F)

Fast

37311250410

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Pin Wire

200 mJ

-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

37311250430

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Pin Wire

200 mJ

-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

37211250001

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Pin Wire

13.75 J

-40 °C (-40 °F)

Matte Tin

35 A

20 ms

9

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; KC; PSE; UL; VDE

85 °C (185 °F)

Time Lag

38311250000

Littelfuse

Electric Fuse

Through Hole Mount

320 V

1.25 A

Pin Wire

6.88 J

-40 °C (-40 °F)

50 A

20 ms

Ammo Pack; Tape

0.335 in (8.5 mm)

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CE; CUL; PSE; UL

85 °C (185 °F)

Time Lag

38311250410

Littelfuse

Electric Fuse

Through Hole Mount

320 V

1.25 A

Pin Wire

6.88 J

-40 °C (-40 °F)

50 A

20 ms

Bulk

0.335 in (8.5 mm)

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CE; CUL; PSE; UL

85 °C (185 °F)

Time Lag

40011250440

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Pin Wire

14.44 J

-40 °C (-40 °F)

Tin

130 A

20 ms

Bulk

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

TE5

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

0.315 in (8 mm)

IEC; PSE; UL; VDE

125 °C (257 °F)

Time Lag

39811250000

Littelfuse

Electric Fuse

Through Hole Mount

65 V

65 V

1.25 A

Pin Wire

2.34 J

-40 °C (-40 °F)

Tin

50 A

10 s

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

TE5

0.315 in (8 mm)

CUL; UL

125 °C (257 °F)

Medium Time Lag

0603TSFV125FM/65-2

Littelfuse

Electric Fuse

1.25 A

-55 °C (-67 °F)

Tin/Nickel

35 A

4 h

0.052

0.067 in (1.7 mm)

0.036 in (0.91 mm)

e2

65 V

0603

0.067 x 0.036 x 0.016 in (1.7 x 0.91 x 0.4 mm)

0.016 in (0.4 mm)

90 °C (194 °F)

Fast

0678H1250-22

Bel Fuse

Electric Fuse

Surface Mount

250 V

125 V

1.25 A

Wraparound

400 mJ

-55 °C (-67 °F)

Palladium

300 A

1 m

Rated Breaking Capacity at 125 VDC: 2000 A

Tape And Reel, 13 inch

0.386 in (9.8 mm)

0.12 in (3.05 mm)

e4

250 V

3912

0.12 in (3.05 mm)

AEC-Q200; CUL; CE; UL

125 °C (257 °F)

SS-5H-1-25A-APH

Eaton Corporation

Electric Fuse

Through Hole Mount

300 V

1.25 A

Pin Wire

12.8 J

-40 °C (-40 °F)

100 A

Ammo Pack

0.335 in (8.5 mm)

0.169 in (4.3 mm)

20 ms

0.309 in (7.85 mm)

CCC; CUL; KC; PSE; TUV; UL; VDE

125 °C (257 °F)

Time Delay

30311250131

Littelfuse

Electric Fuse

Through Hole Mount

125 V

63 V

1.25 A

Pin Wire

59 mJ

-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

30311250001

Littelfuse

Electric Fuse

Through Hole Mount

125 V

63 V

1.25 A

Pin Wire

59 mJ

-25 °C (-13 °F)

50 A

1 m

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

Ammo Pack; Tape

0.236 in (6 mm)

0.315 in (8 mm)

CSA; UL

70 °C (158 °F)

Fast

30311250421

Littelfuse

Electric Fuse

Through Hole Mount

125 V

63 V

1.25 A

Pin Wire

59 mJ

-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

37011250430

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1.25 A

Pin Wire

310 mJ

-40 °C (-40 °F)

Tin

35 A

20 ms

Ammo Pack; Tape

0.335 in (8.5 mm)

e3

TR5

0.315 in (8 mm)

CCC; CE; CUL; PSE; UL; VDE

85 °C (185 °F)

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.