1 A Fuses 1,451

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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

0251001.HRT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 mJ

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 4 ms at 1000% Rated Current

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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

1206SFP100F/63

Littelfuse

Electric Fuse

Surface Mount

63 V

1 A

Wraparound

110 mJ

50 A

0.134 in (3.4 mm)

0.071 in (1.8 mm)

200 µs

1206

0.046 in (1.17 mm)

0673001DRT4

Littelfuse

Electric Fuse

1 A

Pin Wire

50 A

4 h

1.22

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

Time Lag

0267001.VXT

Littelfuse

Electric Fuse

Through Hole Mount

125 V

1 A

Pin Wire

-55 °C (-67 °F)

Gold

50 A

1 s

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

0.093 in (2.36 mm)

e4

Pico

0.093 x 0.28 in (2.36 x 7.11 mm)

0.28 in (7.11 mm)

CSA; QPL

125 °C (257 °F)

Very Fast

0230001.MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

1 A

Pin Wire

5.64 J

-55 °C (-67 °F)

Matte Tin

35 A

Rated Breaking Capacity at 125 VDC: 10000 A

Bulk

0.185 in (4.7 mm)

e3

0.185 x 0.57 in (4.7 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

239001M

Littelfuse

Electric Fuse

1 A

Pin Wire

-55 °C (-67 °F)

Tin/Lead

100 A

4 h

11.295

0.787 in (20 mm)

Supplemental

e0

250 V

296.5 mΩ

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

0234001.MRET1P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

1.975 J

-55 °C (-67 °F)

Tin

100 A

4 h

Pre Arcing Time: OPEN within 400 MS at 200% RATED CURRENT

1.975

Tape And Reel

0.217 in (5.5 mm)

e3

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; CSA; KTL; PSE; UL

125 °C (257 °F)

Medium

0253001.PXT3L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 mJ

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

0.256

Bulk

0.11 in (2.8 mm)

Supplemental

e3

125 V

Pico

0.11 x 0.28 in (2.8 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0CCK001.V

Littelfuse

Electric Fuse

Inline/Holder

125 V

1 A

Tab/Blade

10 kA

0.56 in (14.22 mm)

3.07 in (77.98 mm)

Time Delay

224001DRT1

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

2.22 J

Tin Lead

35 A

224

Tape And Reel

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; METI; PSE; UL

Fast

0251001.NXHF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

1E-8PT-2.75

Littelfuse

Electric Fuse

Inline/Holder

2.75 KV

1 A

End Cap

37.5 kA

1.563 in (39.69 mm)

1.563 x 9.5 in (39.69 x 241.3 mm)

9.5 in (241.3 mm)

Medium

0677001.MXE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

1 A

Pin Wire

6.95 J

Tin Lead

35 A

6.9

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; IEC; UL; VDE

Slow

0215001.MXESPP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

1.52 J

-55 °C (-67 °F)

1.5 kA

10 ms

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

Bulk

0.205 in (5.2 mm)

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; CUL; KC; PSE; UL; VDE

125 °C (257 °F)

Time Lag

0251001.HAT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 mJ

-55 °C (-67 °F)

Matte Tin

50 A

251

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0225001.HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

1 A

End Cap

2.22 J

-55 °C (-67 °F)

Matte Tin

35 A

1 s

Rated Breaking Capacity at 125 VDC: 10000 A

2.22

Bulk

0.189 in (4.8 mm)

e3

250 V

2AG

0.57 x 0.57 in (14.48 x 14.48 mm)

0.587 in (14.9 mm)

CE, CSA, PSE, UL

125 °C (257 °F)

Fast

289001

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

2.22 J

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; METI; MIL; PSE; UL

Fast

325001P

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

16.3 J

Matte Tin

100 A

325P

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; PSE; UL

Slow

0253001T1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 mJ

-55 °C (-67 °F)

Pure Tin

50 A

0253

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; METI; PSE; QPL; UL

125 °C (257 °F)

Very Fast

0233001XP

Littelfuse

Electric Fuse

Inline/Holder

125 V

1 A

End Cap

2.03 J

-55 °C (-67 °F)

Matte Tin

10 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)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Medium

R451001.MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1 A

Wraparound

459 mJ

-55 °C (-67 °F)

Tin/Lead

50 A

5 s

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

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

Nano

0.106 in (2.69 mm)

CSA; UL

125 °C (257 °F)

Very Fast

1E-16PT-25.5

Littelfuse

Electric Fuse

Inline/Holder

25.8 KV

1 A

End Cap

43.5 kA

1.563 in (39.69 mm)

1.563 x 17.5 in (39.69 x 444.5 mm)

17.5 in (444.5 mm)

Medium

0477001.MX6EP

Littelfuse

Electric Fuse

Through Hole Mount

600 V

400 V

1 A

Pin Wire

1.8 J

-55 °C (-67 °F)

Tin

100 A

Rated Breaking Capacity at 400 VDC: 1500 A

Bulk

0.228 in (5.8 mm)

e3

0.228 x 0.886 in (5.8 x 22.5 mm)

0.886 in (22.5 mm)

PSE; UL; VDE

125 °C (257 °F)

Time Delay

0472001.MXT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

938.4 mJ

-55 °C (-67 °F)

Tin

50 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)

UL

125 °C (257 °F)

Time Lag

RF1560-000

Littelfuse

Electric Fuse

Surface Mount

32 V

1 A

Wraparound

36 mJ

50 A

UL

125 °C (257 °F)

Very Fast

0285001HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

1.6 J

-55 °C (-67 °F)

Gold

1.5 kA

10 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)

PSE

125 °C (257 °F)

0663001.HXLL

Littelfuse

Electric Fuse

1 A

-40 °C (-40 °F)

35 A

12

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)

CCC, CSA, METI, SEMKO, UL, VDE

85 °C (185 °F)

Time Lag

F01A125V1AS

Littelfuse

Electric Fuse

Inline/Holder

125 V

1 A

End Cap

Silver

100 A

0.25 in (6.35 mm)

e4

0.25 x 1 in (6.35 x 25.4 mm)

1 in (25.4 mm)

MIL-PRF-15160/1

0251001.PRT1

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 mJ

-55 °C (-67 °F)

Pure Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 4 ms at 1000% Rated Current

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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

4651DR

Littelfuse

Electric Fuse

Surface Mount

250 V

1 A

Wraparound

2.8 J

-55 °C (-67 °F)

Silver

100 A

Tape And Reel

0.476 in (12.1 mm)

0.177 in (4.5 mm)

e4

0.476 x 0.177 x 0.177 in (12.1 x 4.5 x 4.5 mm)

0.177 in (4.5 mm)

PSE

125 °C (257 °F)

Time Lag

325001

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

16.3 J

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; UL

Slow

R251001

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 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

0.095 in (2.413 mm)

125 V

0.28 in (7.112 mm)

CSA; UL

125 °C (257 °F)

Very Fast

2011100002

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

2 J

-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

1961100043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

15 J

-25 °C (-13 °F)

150 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)

BSI; CUL; IEC; SEMKO; UL; VDE

70 °C (158 °F)

Time Lag

JTD001ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

1 A

End Cap

200 kA

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.811 in (20.6 mm)

Indicator

0.811 x 2.252 in (20.6 x 57.2 mm)

2.252 in (57.2 mm)

CSA; UL

Time Delay

0259001.

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

10 mJ

50 A

Rated Breaking Capacity at 125 VDC: 300 A

0.512 in (13 mm)

0.512 x 0.315 in (13 x 8 mm)

0.315 in (8 mm)

EN

197-1100043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

1.3 J

-25 °C (-13 °F)

35 A

Tape And Reel

0.213 in (5.4 mm)

120 s

0.197 x 0.787 in (5 x 20 mm)

0.827 in (21 mm)

CUL; UL

70 °C (158 °F)

Medium Time Lag

0473001.MXL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

2.01 J

-60 °C (-76 °F)

Tin

50 A

2 ms

Pre Arcing Time: Blow within 0.002 s at 800% Rated Current

Bulk

0.135 in (3.43 mm)

e3

Pico

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Time Delay

0253001.VXT3L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 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; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0672001.

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

508 mJ

Tin Lead

50 A

672

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

0229001.MXSP

Littelfuse

Electric Fuse

Inline/Holder

250 V

125 V

1 A

End Cap

5.64 J

-55 °C (-67 °F)

Matte Tin

35 A

Rated Breaking Capacity at 125 VDC: 10000 A

Bulk

0.177 in (4.5 mm)

e3

0.177 x 0.57 in (4.5 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; PSE; UL

125 °C (257 °F)

Time Lag

0314001.P

Littelfuse

Electric Fuse

1 A

End Cap

-55 °C (-67 °F)

Nickel

100 A

4 h

0.69

0.25 in (6.35 mm)

Supplemental

250 V

3AB

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CE, CSA, PSE, UL

125 °C (257 °F)

Fast

0471001.PRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

722 mJ

-55 °C (-67 °F)

Tin

50 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; PSE; UL

125 °C (257 °F)

Time Lag

0233001.XE

Littelfuse

Electric Fuse

Through Hole Mount

125 V

1 A

Pin Wire

2.03 J

10 kA

233

0.228 in (5.8 mm)

0.228 x 0.886 in (5.8 x 22.5 mm)

0.886 in (22.5 mm)

CSA; KTL; PSE; UL

Medium

0253001.NX

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 mJ

-55 °C (-67 °F)

50 A

4 ms

Pre-Arcing Time: Open within 4 ms at 1000% Rated Current

Bulk

0.103 in (2.61 mm)

125 V

Pico

0.28 in (7.11 mm)

CCC; CSA; CUL; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0603TSFV100FM/65-2

Littelfuse

Electric Fuse

1 A

-55 °C (-67 °F)

Tin/Nickel

50 A

4 h

0.03

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

3921100000

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

5.8 J

-40 °C (-40 °F)

Tin

25 A

392

Ammo Pack; Tape And Reel

0.335 in (8.5 mm)

0.157 in (4 mm)

e3

20 ms

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

0.315 in (8 mm)

CCC; IEC; METI; PSE; SEMKO; UL; VDE

85 °C (185 °F)

Time Lag

L60S1

Littelfuse

Electric Fuse

Inline/Holder

600 V

1 A

End Cap

200 kA

0.811 in (20.6 mm)

0.811 x 5 in (20.6 x 127 mm)

5 in (127 mm)

CSA; UL

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.