2.5 A Fuses 1,043

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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

021602.5MRET3

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

2.695 J

-55 °C (-67 °F)

Tin

1.2 kA

Tape And Reel

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)

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

125 °C (257 °F)

Fast

043302.5NR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

2.5 A

Wraparound

500 mJ

-55 °C (-67 °F)

Tin Lead

50 A

433

Rated Breaking Capacity at 32 VDC: 50 A

Tape And Reel

0.125 in (3.18 mm)

0.06 in (1.52 mm)

e0

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)

Very Fast

048102.5HXM

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

2.5 A

End Cap

16 J

-55 °C (-67 °F)

300 A

5 m

0.701 in (17.8 mm)

0.228 in (5.8 mm)

125 V

Alarm; Indicator

0.772 in (19.6 mm)

CSA; UL

125 °C (257 °F)

Fast

050702.5MXP

Littelfuse

Electric Fuse

Inline/Holder

650 V

2.5 A

End Cap

4.1 J

-55 °C (-67 °F)

150 A

2 m

Bulk

0.25 in (6.35 mm)

3AB

1.25 in (31.75 mm)

CE; CUL; UL

125 °C (257 °F)

032502.5VXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

2.5 A

Pin Wire

-55 °C (-67 °F)

Tin

4 h

136

0.275 in (6.985 mm)

e3

250 V

3AB

0.275 x 1.288 in (6.985 x 32.72 mm)

1.288 in (32.72 mm)

CE, CSA, PSE, UL

125 °C (257 °F)

Time Lag

047302.5MAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

13 J

-60 °C (-76 °F)

Tin

50 A

2 ms

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

13

Ammo Pack

0.135 in (3.43 mm)

e3

125 V

Pico

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 Delay

048102.5HXLMP

Littelfuse

Electric Fuse

Inline/Holder

125 V

125 V

2.5 A

End Cap

16 J

-55 °C (-67 °F)

300 A

5 m

0.839 in (21.3 mm)

0.228 in (5.8 mm)

125 V

Alarm; Indicator

0.772 in (19.6 mm)

CSA; UL

125 °C (257 °F)

Fast

26302.5HX

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

1.197 J

-55 °C (-67 °F)

50 A

4 h

1.19

0.155 in (3.94 mm)

250 V

34 mΩ

Pico

0.28 in (7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

3252.5MHXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

2.5 A

Pin Wire

136 J

-55 °C (-67 °F)

Matte Tin

100 A

Rated Breaking Capacity at 125 VDC: 10000 A

Bulk

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; KTL; PSE; UL

125 °C (257 °F)

Time Lag

023402.5MXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

2.5 A

End Cap

17.045 J

-55 °C (-67 °F)

Nickel

100 A

400 ms

17.045

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)

CE; CSA; PSE; UL

125 °C (257 °F)

Medium

025102.5MXHF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

721 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; TUV; UL

125 °C (257 °F)

Very Fast

025102.5TL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

721 mJ

-55 °C (-67 °F)

Matte Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

0.095 in (2.41 mm)

e3

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; METI; PSE; UL

125 °C (257 °F)

Very Fast

067702.5

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

32.5 J

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)

CCC; CSA; IEC; UL; VDE

Slow

031502.5MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

199 J

-60 °C (-76 °F)

100 A

5 s

Bulk

0.275 in (6.99 mm)

3AG

1.273 x 0.275 in (32.34 x 6.98 mm)

1.288 in (32.72 mm)

CE; CSA; KC; PSE; UL

125 °C (257 °F)

Time Lag

2311250000

Littelfuse

Electric Fuse

Inline/Holder

500 V

2.5 A

End Cap

440 mJ

-25 °C (-13 °F)

1 kA

Bulk

0.248 in (6.3 mm)

1 ms

0.248 x 1.26 in (6.3 x 32 mm)

0.126 in (3.2 mm)

70 °C (158 °F)

Very Fast

02172.5MXEP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

75 V

2.5 A

Pin Wire

9.46 J

-55 °C (-67 °F)

35 A

10 ms

Rated Breaking Capacity at 75 VDC: 70 A, Pre Arcing Time: Open within 10 ms at 400% Rated Current

Bulk

0.217 in (5.5 mm)

250 V

0.197 x 0.787 in (5 x 20 mm)

0.846 in (21.5 mm)

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

125 °C (257 °F)

Fast

23002.5

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

50 J

-55 °C (-67 °F)

100 A

0.185 in (4.7 mm)

0.185 x 0.57 in (4.7 x 14.48 mm)

0.57 in (14.48 mm)

CE; CSA; METI; PSE; UL

125 °C (257 °F)

Slow

025102.5PXT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

721 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; TUV; UL

125 °C (257 °F)

Very Fast

26302.5WRT1

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

1.197 J

-55 °C (-67 °F)

50 A

4 h

1.19

Tape And Reel

0.155 in (3.94 mm)

250 V

34 mΩ

Pico

0.28 in (7.11 mm)

0.28 in (7.11 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

047202.5NRT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

7.084 J

-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)

UL

125 °C (257 °F)

Time Lag

022402.5MXP

Littelfuse

Electric Fuse

Through Hole Mount

250 V

125 V

2.5 A

Pin Wire

3.82 J

-55 °C (-67 °F)

Tin

100 A

1 s

Rated Breaking Capacity at 125 VDC: 10000 A

2.68

Bulk

0.189 in (4.8 mm)

e3

250 V

2AG

0.185 x 0.57 in (4.7 x 14.48 mm)

0.587 in (14.9 mm)

CE, CSA, PSE, UL

125 °C (257 °F)

Fast

021802.5TXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

2.5 A

End Cap

23.25 J

-55 °C (-67 °F)

Nickel

35 A

20 ms

23.25

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)

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

125 °C (257 °F)

Time Lag

4191250001

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

2.5 A

End Cap

950 mJ

-65 °C (-85 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.109 in (2.77 mm)

e4

5 s

0.24 x 0.109 x 0.109 in (6.1 x 2.77 x 2.77 mm)

0.109 in (2.77 mm)

CSA; UL

125 °C (257 °F)

Very Fast

AGW2.5CABP

Littelfuse

Electric Fuse

Inline/Holder

32 V

32 V

2.5 A

End Cap

0.25 in (6.35 mm)

32 V

7AG

0.875 in (22.225 mm)

2751250000

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

820 mJ

-25 °C (-13 °F)

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Tape And Reel

0.094 in (2.4 mm)

5 s

Pico

0.283 in (7.2 mm)

CUL; UL

70 °C (158 °F)

Very Fast

026302.5MRT1L

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

1.197 J

-55 °C (-67 °F)

Pure Tin

50 A

100 ms

1.197

Tape And Reel

0.155 in (3.94 mm)

250 V

Pico

0.155 x 0.28 in (3.94 x 7.11 mm)

CSA, PSE, UL

125 °C (257 °F)

Very Fast

26602.5

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

-55 °C (-67 °F)

Gold

50 A

Rated Breaking Capacity at 125 VDC: 300 A

0.28 in (7.11 mm)

0.093 in (2.36 mm)

e4

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

KLK2.5

Littelfuse

Electric Fuse

Inline/Holder

600 V

2.5 A

End Cap

100 kA

0.406 in (10.31 mm)

0.406 x 1.5 in (10.31 x 38.1 mm)

1.5 in (38.1 mm)

CSA; QPL; UL

Fast

20302.5G

Littelfuse

Electric Fuse

Surface Mount

250 V

250 V

2.5 A

Gull Wing

2.87 J

-55 °C (-67 °F)

Tin/Lead

50 A

203

Tape And Reel

0.372 in (9.45 mm)

0.25 in (6.35 mm)

e0

0.372 x 0.25 x 0.165 in (9.45 x 6.35 x 4.19 mm)

0.165 in (4.19 mm)

CSA; UL

125 °C (257 °F)

Slow

044102.5WRA

Littelfuse

Electric Fuse

Surface Mount

32 V

2.5 A

Wraparound

552 mJ

-55 °C (-67 °F)

Matte Tin

50 A

5 s

Tape And Reel

0.061 in (1.54 mm)

0.033 in (0.85 mm)

e3

0603

0.063 x 0.035 x 0.022 in (1.61 x 0.88 x 0.55 mm)

0.02 in (0.502 mm)

AEC-Q200; CSA; CUL; UL

150 °C (302 °F)

025102.5L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

721 mJ

-55 °C (-67 °F)

Matte Tin

50 A

251

Rated Breaking Capacity at 125 VDC: 300 A

0.095 in (2.41 mm)

e3

0.095 x 0.28 in (2.41 x 7.11 mm)

0.28 in (7.11 mm)

CSA; METI; PSE; UL

125 °C (257 °F)

Very Fast

025102.5NR

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

721 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; TUV; UL

125 °C (257 °F)

Very Fast

3701250041

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

1.8 J

-40 °C (-40 °F)

Tin

35 A

Bulk

0.335 in (8.5 mm)

e3

250 V

20 ms

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CCC; PSE; SEMKO; UL; VDE

85 °C (185 °F)

Fast

049102.5NAT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

-55 °C (-67 °F)

Pure Tin

50 A

300 ms

Pre-Arcing Time: Open within 0.3 s at 300% Rated Current

Ammo Pack

0.11 in (2.8 mm)

125 V

Pico

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)

Very Fast

023902.5HXP

Littelfuse

Electric Fuse

Inline/Holder

250 V

2.5 A

End Cap

79.705 J

-55 °C (-67 °F)

Nickel

100 A

4 h

79.705

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)

CE; CSA; KC; PSE; UL

125 °C (257 °F)

Time Lag

21602.5PH

Littelfuse

Electric Fuse

Inline/Holder

250 V

2.5 A

End Cap

2.697 J

-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; KTL; PSE; SEMKO; SEV; UL; VDE

125 °C (257 °F)

Fast

025302.5PXL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

721 mJ

-55 °C (-67 °F)

Tin

50 A

Rated Breaking Capacity at 125 VDC: 300 A

Bulk

0.103 in (2.61 mm)

e3

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; TUV; UL

125 °C (257 °F)

Very Fast

3031250000

Littelfuse

Electric Fuse

Through Hole Mount

125 V

63 V

2.5 A

Pin Wire

230 mJ

-25 °C (-13 °F)

Matte Tin

50 A

Rated Breaking Capacity at 63 VDC: 60 A

0.23

Ammo Pack; Tape And Reel

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

047202.5NAT1HF

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

7.084 J

-55 °C (-67 °F)

Tin

50 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)

UL

125 °C (257 °F)

Time Lag

025302.5MAL

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

721 mJ

-55 °C (-67 °F)

Tin

50 A

0253

Rated Breaking Capacity at 125 VDC: 300 A

Ammo Pack

0.103 in (2.61 mm)

e3

0.103 x 0.28 in (2.61 x 7.11 mm)

0.28 in (7.11 mm)

CCC; CSA; PSE; TUV; UL

125 °C (257 °F)

Very Fast

3731250041

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

1.2 J

-40 °C (-40 °F)

Matte Tin

50 A

1.2

Bulk

0.335 in (8.5 mm)

Supplemental

e3

250 V

30.8 mΩ

5 s

TR5

0.335 x 0.315 in (8.5 x 8 mm)

0.315 in (8 mm)

CSA; UL

85 °C (185 °F)

Fast

KLK02.5

Littelfuse

Electric Fuse

Inline/Holder

600 V

500 V

2.5 A

End Cap

100 kA

Rated Breaking Capacity at 500 VDC: 50000 A

0.406 in (10.31 mm)

0.394 x 1.496 in (10 x 38 mm)

1.5 in (38.1 mm)

CSA; UL

Fast

066202.5MALL

Littelfuse

Electric Fuse

Through Hole Mount

250 V

250 V

2.5 A

Pin Wire

1.94 J

-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

SPXV02.5TXS

Littelfuse

Electric Fuse

Inline/Holder

1.5 KV

2.5 A

End Cap

3.68 J

30 kA

4 m

Bulk

0.406 in (10.31 mm)

3.333 in (84.65 mm)

CE; CUL; IEC; UL

Fast

067202.5

Littelfuse

Electric Fuse

Through Hole Mount

250 V

2.5 A

Pin Wire

3.73 J

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

043402.5

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

2.5 A

Wraparound

175 mJ

-55 °C (-67 °F)

Tin/Lead with Nickel barrier

35 A

Rated Breaking Capacity at 32 VDC: 35 A

Tape And Reel

0.063 in (1.6 mm)

0.032 in (0.813 mm)

e0

0.063 x 0.032 x 0.012 in (1.6 x 0.813 x 0.305 mm)

0.012 in (0.305 mm)

CSA; UL

90 °C (194 °F)

Very Fast

047302.5PAT1L

Littelfuse

Electric Fuse

Through Hole Mount

125 V

125 V

2.5 A

Pin Wire

13 J

-60 °C (-76 °F)

Tin

50 A

2 ms

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

13

Ammo Pack

0.135 in (3.43 mm)

e3

125 V

Pico

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 Delay

043502.5KRHFS

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

2.5 A

Wraparound

156 mJ

-55 °C (-67 °F)

35 A

Rated Breaking Capacity at 32 VDC

Tape And Reel

0.039 in (0.99 mm)

0.02 in (0.51 mm)

0.039 x 0.02 x 0.012 in (0.99 x 0.51 x 0.3 mm)

0.012 in (0.3 mm)

CSA; UL

90 °C (194 °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.