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

0313001.IDMXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

14 J

-55 °C (-67 °F)

10 kA

Bulk

1.25 in (31.75 mm)

Indicator

1.25 x 0.25 in (31.75 x 6.35 mm)

0.25 in (6.35 mm)

CE; CSA; UL

125 °C (257 °F)

Time Lag

0253001.NR

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 mJ

-55 °C (-67 °F)

50 A

4 ms

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)

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

125 °C (257 °F)

Very Fast

0455001.

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1 A

End Cap

645 mJ

-55 °C (-67 °F)

Tin Lead

50 A

455

Rated Breaking Capacity at 125 VDC: 50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

0.24 x 0.106 x 0.106 in (6.1 x 2.69 x 2.69 mm)

0.106 in (2.69 mm)

IEC; UL

125 °C (257 °F)

Fast

468001.

Littelfuse

Electric Fuse

Surface Mount

63 V

63 V

1 A

Wraparound

127 mJ

-55 °C (-67 °F)

50 A

Rated Breaking Capacity at 63 VDC: 50

Tape And Reel

0.125 in (3.18 mm)

0.06 in (1.52 mm)

0.125 x 0.06 x 0.023 in (3.18 x 1.52 x 0.58 mm)

0.023 in (0.58 mm)

CSA; UL

90 °C (194 °F)

Slow

265001

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

-55 °C (-67 °F)

Gold

50 A

4 h

Rated Breaking Capacity at 125 VDC: 300 A

0.28 in (7.11 mm)

0.093 in (2.36 mm)

Supplemental

e4

125 V

125 mΩ

Pico

0.28 x 0.093 x 0.093 in (7.11 x 2.36 x 2.36 mm)

0.093 in (2.36 mm)

CSA; UL

125 °C (257 °F)

Very Fast

3721100051

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

5.5 J

-40 °C (-40 °F)

Matte Tin

35 A

Bulk

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; PSE; SEMKO; UL; VDE

85 °C (185 °F)

Time Lag

0473001.YRT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

2.01 J

-55 °C (-67 °F)

Pure Tin

50 A

Tape And Reel

0.135 in (3.43 mm)

0.135 x 0.28 in (3.43 x 7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Time Lag

0253001TL

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

Tape And Reel

0.095 in (2.41 mm)

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; METI; PSE; QPL; UL

125 °C (257 °F)

Very Fast

R452001

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1 A

Wraparound

1.98 J

-55 °C (-67 °F)

Tin Lead

50 A

20 ms

Pre Arcing Time: Open within 0.02 s at 800% Rated Current

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

125 V

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)

Slow

0452001.NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1 A

Wraparound

1.98 J

-55 °C (-67 °F)

Gold

50 A

4 h

Rated Breaking Capacity at 125 VDC: 50 A

1.98

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

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; PSE; UL

125 °C (257 °F)

Time Lag

0663001.ZRLL

Littelfuse

Electric Fuse

1 A

-40 °C (-40 °F)

35 A

12

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)

CCC, CSA, METI, SEMKO, UL, VDE

85 °C (185 °F)

Time Lag

0448001.

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1 A

End Cap

441 mJ

-55 °C (-67 °F)

Gold

50 A

4 h

Rated Breaking Capacity at 125 VDC: 50 A

0.441

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

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; METI; PSE; UL

125 °C (257 °F)

Very Fast

0230001.MXF16P

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

TLS001LS

Littelfuse

Electric Fuse

Inline/Holder

170 V

1 A

Tab/Blade

Silver

100 kA

0.563 in (14.3 mm)

e4

0.563 x 0.88 in (14.3 x 22.35 mm)

0.88 in (22.35 mm)

CE; UL

R452001.

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1 A

End Cap

1.98 J

-55 °C (-67 °F)

Tin Lead

50 A

452

Rated Breaking Capacity at 125 VDC: 50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

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)

Slow

1206SFS100F/63

Littelfuse

Electric Fuse

Surface Mount

63 V

1 A

End Cap

110 mJ

-55 °C (-67 °F)

Tin Over Nickel

50 A

Rated Breaking Capacity at 63 VDC: 50 A

0.126 in (3.2 mm)

0.063 in (1.6 mm)

e3

0.126 x 0.063 x 0.038 in (3.2 x 1.6 x 0.97 mm)

0.038 in (0.97 mm)

UL

125 °C (257 °F)

Slow

1811100043

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

1 J

-40 °C (-40 °F)

1.5 kA

181

Tape And Reel

0.232 in (5.9 mm)

10 ms

0.232 x 0.827 in (5.9 x 21 mm)

0.827 in (21 mm)

BSI; CCC; CUL; IEC; METI; PSE; SEMKO; SEV; UL; VDE

85 °C (185 °F)

Time Lag

2011100000

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

0218001.MXGP

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

6.73 J

-55 °C (-67 °F)

Nickel

35 A

6.73

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; IEC; KC; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

253001

Littelfuse

Electric Fuse

125 V

125 V

1 A

253

312001

Littelfuse

Electric Fuse

Inline/Holder

250 V

250 V

1 A

End Cap

760 mJ

Tin/Lead

35 A

5 s

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

0.25 in (6.35 mm)

e0

250 V

3AG

0.25 x 1.25 in (6.35 x 31.75 mm)

1.25 in (31.75 mm)

CSA; UL

Fast

0473001.PXL

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

0234001.XE

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

2.03 J

-55 °C (-67 °F)

Tin Lead

35 A

Pre-Arcing Time: Open within 0.4 s, at 200% Rated Current

0.228 in (5.8 mm)

e0

0.228 x 0.886 in (5.8 x 22.5 mm)

0.886 in (22.5 mm)

CE; CSA; KTL; PSE; UL

125 °C (257 °F)

Medium

0253001.HAT3L

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

Ammo Pack

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

0216001.MXGP

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

180 mJ

-55 °C (-67 °F)

Tin

1.5 kA

0.18

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; KC; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Fast

0233001XW

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

2.03 J

233

0.207 in (5.25 mm)

0.207 x 0.886 in (5.25 x 22.5 mm)

0.886 in (22.5 mm)

CSA; MITI; UL

Medium

FLA1

Littelfuse

Electric Fuse

Inline/Holder

125 V

1 A

End Cap

10 kA

FLA

0.406 in (10.31 mm)

Indicator

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

UL

Slow

0230001.DRT1SP

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

Tape And Reel

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

0233001.MXP

Littelfuse

Electric Fuse

Inline/Holder

125 V

1 A

End Cap

1.975 J

-55 °C (-67 °F)

Nickel

10 kA

600 ms

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)

CE; CSA; KC; PSE; UL

125 °C (257 °F)

Medium

TLN001

Littelfuse

Electric Fuse

Inline/Holder

170 V

1 A

End Cap

Rated Breaking Capacity at 170 VDC: 100000 A

0.563 in (14.3 mm)

0.563 x 2 in (14.3 x 50.8 mm)

2 in (50.8 mm)

UL

Fast

0251001.PRT1HF

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

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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

IDSR001ID

Littelfuse

Electric Fuse

Inline/Holder

600 V

600 V

1 A

200 kA

IDSR

Rated Breaking Capacity at 600 VDC: 20000 A

Indicator

CSA; UL

Time Delay

0251001.HR

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

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)

CCC; CSA; PSE; QPL; TUV; UL

125 °C (257 °F)

Very Fast

0257001.LXN

Littelfuse

Electric Fuse

Inline/Holder

32 V

1 A

Tab/Blade

400 mJ

-40 °C (-40 °F)

Tin/Copper

1 kA

4 d 4 h

0.405

Bulk

0.75 in (19.05 mm)

0.2 in (5.08 mm)

ATO

e2

32 V

0.75 x 0.2 x 0.48 in (19.05 x 5.08 x 12.19 mm)

0.48 in (12.19 mm)

UL

105 °C (221 °F)

Fast

02591.00M

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

1 A

Pin Wire

256 mJ

-55 °C (-67 °F)

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

0.512 in (13 mm)

0.512 x 0.315 in (13 x 8 mm)

0.315 in (8 mm)

BASEEFA

90 °C (194 °F)

1931100002

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

1.4 J

-25 °C (-13 °F)

Nickel

35 A

193

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)

CCC; CUL; DIN; IEC; SEMKO; VDE

70 °C (158 °F)

Very Fast

0253001.VXL

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

0251001.MAT1HF

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

224001MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

2.22 J

Matte Tin

35 A

Bulk; Tape And Reel

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)

CSA; METI; UL

Fast

0232001.MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

1.373 J

-60 °C (-76 °F)

Nickel

10 kA

2 m

Pre Arcing Time: Open within 2 m at 200% 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)

CE; KC; PSE

125 °C (257 °F)

Medium

4561100000

Littelfuse

Electric Fuse

Surface Mount

125 V

1 A

Wraparound

40 J

-40 °C (-40 °F)

Blister Tape

0.398 in (10.1 mm)

0.098 in (2.5 mm)

120 s

10025

0.033 in (0.85 mm)

CUL; UL

85 °C (185 °F)

SPXI001.TXB

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

1 A

End Cap

290 mJ

30 kA

4 m

Bulk

0.406 in (10.31 mm)

3.362 in (85.4 mm)

TUV; UL

SPXI001.L

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

1 A

End Cap

290 mJ

30 kA

4 m

Bulk

0.406 in (10.31 mm)

3.205 in (81.41 mm)

CUL; TUV; UL

KLDR001HXP

Littelfuse

Electric Fuse

Inline/Holder

600 V

300 V

1 A

End Cap

449.4 mJ

200 kA

12 s

Rated Breaking Capacity at 300 VDC: 20000 A

Bulk

0.406 in (10.3 mm)

1.5 in (38.1 mm)

CE; CSA; UL

Time Delay

02131MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

1 A

Pin Wire

19.2 J

-55 °C (-67 °F)

35 A

20 ms

Pre Arcing Time: Open within 0.02 s at 1000% Rated Current

Bulk

0.217 in (5.5 mm)

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

CCC; CE; CSA; KC; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Time Lag

0507001.MX

Littelfuse

Electric Fuse

Inline/Holder

650 V

1 A

End Cap

600 mJ

-55 °C (-67 °F)

150 A

2 m

Pre Arcing Time: Open within 120 s at 200% Rated Current

Bulk

0.25 in (6.35 mm)

0.248 x 1.26 in (6.3 x 32 mm)

1.25 in (31.75 mm)

CE; CSA; CUL; UL

125 °C (257 °F)

0SPF001.H

Littelfuse

Electric Fuse

Inline/Holder

1 KV

1 A

End Cap

600 mJ

20 kA

4 m

Bulk

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CSA; TUV; UL

Fast

02131MXG

Littelfuse

Electric Fuse

Inline/Holder

250 V

1 A

End Cap

19.2 J

-55 °C (-67 °F)

35 A

20 ms

Pre Arcing Time: Open within 0.02 s at 1000% Rated Current

Bulk

0.205 in (5.2 mm)

0.197 x 0.787 in (5 x 20 mm)

0.787 in (20 mm)

CCC; CE; CSA; KC; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

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.