Surface Mount Fuses 2,400+

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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

045401.5NRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1.5 A

Wraparound

3.65 J

-55 °C (-67 °F)

50 A

2 ms

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

125 V

Nano

0.106 in (2.69 mm)

CSA; CUL; UL

125 °C (257 °F)

Slow

0453004NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

3.152 J

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

125 V

Nano

0.106 in (2.69 mm)

CSA, PSE, UL

125 °C (257 °F)

Very Fast

015706.3.DR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

6.3 A

Wraparound

9.17 J

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

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

0.106 in (2.69 mm)

UL

125 °C (257 °F)

Very Fast

04490.500MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

500 mA

Wraparound

258 mJ

-55 °C (-67 °F)

Gold

50 A

20 ms

Pre Arcing Time: Open within 20 ms at 800% Rated Current

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

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)

UL

125 °C (257 °F)

Slow

R45203.5

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3.5 A

End Cap

26.53 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

0446005.

Littelfuse

Electric Fuse

Surface Mount

350 V

125 V

5 A

Gull Wing

25 J

-40 °C (-40 °F)

100 A

150 ms

Rated Breaking Capacity at 125 VDC: 50 A, Pre Arcing Time: Open within 0.15 s at 275% Rated Current

0.43 in (10.92 mm)

0.345 in (8.76 mm)

350 V

0.43 x 0.345 x 0.15 in (10.92 x 8.76 x 3.81 mm)

0.15 in (3.81 mm)

CSA; METI; PSE; UL

125 °C (257 °F)

Fast

1206SFF150F/63-2

Littelfuse

Electric Fuse

Surface Mount

63 V

1.5 A

Wraparound

Matte Tin with Nickel barrier

50 A

1206SFF150F/63-2

e3

UL

125 °C (257 °F)

Fast

0159.500MR

Littelfuse

Electric Fuse

Surface Mount

600 V

500 mA

End Cap

840 mJ

-55 °C (-67 °F)

Nickel

60 A

Tape And Reel

0.398 in (10.1 mm)

0.123 in (3.12 mm)

0.398 x 0.123 x 0.123 in (10.1 x 3.12 x 3.12 mm)

0.123 in (3.12 mm)

UL

125 °C (257 °F)

1206SFP400F/32-2

Littelfuse

Electric Fuse

Surface Mount

32 V

4 A

Wraparound

2.74 J

-55 °C (-67 °F)

50 A

0.134 in (3.4 mm)

0.071 in (1.8 mm)

32 V

1206

0.134 x 0.071 x 0.046 in (3.4 x 1.8 x 1.17 mm)

0.046 in (1.17 mm)

UL

125 °C (257 °F)

0448012.MR

Littelfuse

Electric Fuse

Surface Mount

65 V

85 V

12 A

Wraparound

47.59 J

-55 °C (-67 °F)

Gold

50 A

20 s

Rated Breaking Capacity at 85 VDC: 200 A

47.59

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

85 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; UL

125 °C (257 °F)

Very Fast

0453.100NRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

100 mA

Wraparound

1.38 mJ

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

5 s

Nano

0.106 in (2.69 mm)

CSA; UL

125 °C (257 °F)

Very Fast

0448.100NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

100 mA

End Cap

820 μJ

-55 °C (-67 °F)

Gold

50 A

Rated Breaking Capacity at 125 VDC: 50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

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)

Very Fast

0603SFP500F/32-2

Littelfuse

Electric Fuse

Surface Mount

32 V

5 A

Wraparound

3.25 J

-55 °C (-67 °F)

50 A

0.069 in (1.75 mm)

0.037 in (0.95 mm)

32 V

0603

0.069 x 0.037 x 0.037 in (1.75 x 0.95 x 0.95 mm)

0.037 in (0.95 mm)

UL

125 °C (257 °F)

0603SFV200F/32-2

Littelfuse

Electric Fuse

Surface Mount

32 V

2 A

Wraparound

210 mJ

-55 °C (-67 °F)

35 A

4 h

0.21

0.069 in (1.75 mm)

0.037 in (0.95 mm)

32 V

0603

0.069 x 0.037 x 0.019 in (1.75 x 0.95 x 0.48 mm)

0.019 in (0.48 mm)

UL

125 °C (257 °F)

Very Fast

0459002.ER

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

2 A

J Bend

421 mJ

-55 °C (-67 °F)

Tin

50 A

100 ms

Pre Arcing Time: Open within 0.1 s at 300% Rated Current

0.42

Tape And Reel

0.285 in (7.24 mm)

0.17 in (4.32 mm)

e3

125 V

Pico

0.285 x 0.17 x 0.12 in (7.24 x 4.32 x 3.05 mm)

0.12 in (3.05 mm)

CSA; PSE; UL

125 °C (257 °F)

Very Fast

0466002.

Littelfuse

Electric Fuse

Surface Mount

63 V

63 V

2 A

Wraparound

232.6 mJ

-55 °C (-67 °F)

Matte Tin with Nickel barrier

50 A

200 ms

Pre Arcing Time: Open within 0.2 s at 300% Rated Current

0.2326

0.125 in (3.18 mm)

0.06 in (1.52 mm)

e3

63 V

1206

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

045302.5NRL

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

2.5 A

Wraparound

1.029 J

-55 °C (-67 °F)

Silver

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)

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)

Very Fast

0436001.PR

Littelfuse

Electric Fuse

Surface Mount

250 V

250 V

1 A

Wraparound

2.606 J

-55 °C (-67 °F)

Tin Lead

100 A

436

Tape And Reel

0.59 in (14.99 mm)

0.2 in (5.08 mm)

e0

0.59 x 0.2 x 0.095 in (14.99 x 5.08 x 2.41 mm)

0.095 in (2.41 mm)

CSA; UL

125 °C (257 °F)

0603SFV050F/32

Littelfuse

Electric Fuse

Surface Mount

32 V

500 mA

Wraparound

50 A

0.069 in (1.75 mm)

0.037 in (0.95 mm)

1 ms

0603

0.019 in (0.48 mm)

UL

Very Fast

R460003

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

3 A

J Bend

21 J

-55 °C (-67 °F)

Matte Tin

50 A

0.285 in (7.239 mm)

0.17 in (4.318 mm)

e3

125 V

0.12 in (3.048 mm)

CSA; UL

125 °C (257 °F)

Slow

04641.25

Littelfuse

Electric Fuse

Surface Mount

250 V

1.25 A

End Cap

1.2 J

-55 °C (-67 °F)

Silver

100 A

Joule Integral Nom at 32 VDC: 1.2

0.98

Tape And Reel

0.476 in (12.1 mm)

0.177 in (4.5 mm)

e4

250 V

59 mΩ

Nano

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

0.177 in (4.5 mm)

METI; PSE; UL

125 °C (257 °F)

Fast

42902.5WR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

2.5 A

Wraparound

500 mJ

-55 °C (-67 °F)

Tin Lead Over Nickel

50 A

429

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 0.045 in (3.18 x 1.52 x 1.14 mm)

0.045 in (1.14 mm)

CSA; UL

90 °C (194 °F)

Very Fast

0453010.MR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

10 A

Wraparound

26.46 J

-55 °C (-67 °F)

Silver

35 A

5 s

Rated Breaking Capacity at 125 VDC: 50 A

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)

CE; CSA; CUL; PSE; TUV; UL

125 °C (257 °F)

Very Fast

431.750

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

750 mA

Wraparound

17.1 mJ

-55 °C (-67 °F)

Tin Lead Over Nickel

50 A

431

Rated Breaking Capacity at 32 VDC: 50 A

0.063 in (1.6 mm)

0.031 in (0.79 mm)

e0

0.063 x 0.031 x 0.018 in (1.6 x 0.79 x 0.46 mm)

0.018 in (0.46 mm)

CSA; UL

90 °C (194 °F)

Very Fast

R451.500L

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

500 mA

Wraparound

79.5 mJ

-55 °C (-67 °F)

Gold with Nickel barrier

50 A

5 s

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

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

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; PSE; UL

125 °C (257 °F)

Very Fast

468002.NR

Littelfuse

Electric Fuse

Surface Mount

63 V

63 V

2 A

Wraparound

506 mJ

-55 °C (-67 °F)

Matte Tin

35 A

Rated Breaking Capacity at 63 VDC: 50

Tape And Reel

0.125 in (3.18 mm)

0.06 in (1.52 mm)

e3

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

0453012NR

Littelfuse

Electric Fuse

Surface Mount

65 V

65 V

12 A

Wraparound

47.97 J

-55 °C (-67 °F)

Silver

50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

65 V

Nano

0.106 in (2.69 mm)

CSA; CUL; UL

125 °C (257 °F)

Very Fast

045101.6NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

1.6 A

Wraparound

1.06 J

-55 °C (-67 °F)

Tin/Lead

50 A

4 h

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

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)

CE; CSA; PSE; UL

125 °C (257 °F)

Very Fast

464004

Littelfuse

Electric Fuse

Surface Mount

250 V

4 A

End Cap

15.1 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)

CCC; METI; UL; VDE

125 °C (257 °F)

Fast

0434.250NR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

250 mA

Wraparound

3 mJ

-55 °C (-67 °F)

Tin

50 A

434

Rated Breaking Capacity at 32 VDC: 50 A

Tape And Reel

0.063 in (1.6 mm)

0.032 in (0.81 mm)

e3

0.063 x 0.032 x 0.012 in (1.6 x 0.81 x 0.31 mm)

0.012 in (0.31 mm)

CSA; UL

90 °C (194 °F)

Very Fast

043501.5KRHFS

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

1.5 A

Wraparound

56 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

0451.200NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

200 mA

Wraparound

8.9 mJ

-55 °C (-67 °F)

Tin/Lead

50 A

4 h

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e0

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)

CE; CSA; UL

125 °C (257 °F)

Very Fast

R452005.NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

5 A

End Cap

53.72 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

0451004.NRSN

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

4 A

Wraparound

3.152 J

-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)

CE; CSA; CUL; PSE; TUV; UL

125 °C (257 °F)

Very Fast

0603SFF600FM/24

Littelfuse

Electric Fuse

Surface Mount

24 V

6 A

End Cap

-55 °C (-67 °F)

Rated Breaking Capacity at 24 VDC: 35 A

0.069 in (1.75 mm)

0.037 in (0.95 mm)

0.069 x 0.037 x 0.037 in (1.75 x 0.95 x 0.95 mm)

0.037 in (0.95 mm)

UL

125 °C (257 °F)

F09837-000

Littelfuse

Electric Fuse

Surface Mount

32 V

4 A

Wraparound

2.2 J

50 A

UL

125 °C (257 °F)

Slow

0603SFP250F/32-2

Littelfuse

Electric Fuse

Surface Mount

32 V

2.5 A

Wraparound

560 mJ

-55 °C (-67 °F)

50 A

0.069 in (1.75 mm)

0.037 in (0.95 mm)

32 V

0603

0.069 x 0.037 x 0.037 in (1.75 x 0.95 x 0.95 mm)

0.037 in (0.95 mm)

UL

125 °C (257 °F)

R451.080

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

80 mA

End Cap

300 μJ

Tin/Lead

50 A

e0

CSA; UL

Very Fast

0203002.URG

Littelfuse

Electric Fuse

Surface Mount

250 V

2 A

Gull Wing

1.7 J

-55 °C (-67 °F)

Tin Lead

50 A

4 h

1.7

Tape And Reel

0.372 in (9.45 mm)

0.25 in (6.35 mm)

e0

250 V

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

0603SFF200F/32

Littelfuse

Electric Fuse

Surface Mount

32 V

2 A

Wraparound

-55 °C (-67 °F)

Tin with Nickel barrier

35 A

4 h

Rated Breaking Capacity at 32 VDC: 35 A

0.06

0.063 in (1.6 mm)

0.031 in (0.8 mm)

e3

32 V

0.063 x 0.031 x 0.031 in (1.6 x 0.8 x 0.8 mm)

0.031 in (0.8 mm)

UL

125 °C (257 °F)

Fast

040704.5WR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

4.5 A

Wraparound

5.2 J

-55 °C (-67 °F)

50 A

2 ms

Tape And Reel

0.126 in (3.2 mm)

0.064 in (1.63 mm)

32 V

20 mΩ

1206

0.033 in (0.835 mm)

UL

150 °C (302 °F)

Time Lag

0448.250NR

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

250 mA

End Cap

15.2 mJ

-55 °C (-67 °F)

Gold

50 A

Rated Breaking Capacity at 125 VDC: 50 A

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

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)

Very Fast

0434.750

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

750 mA

Wraparound

17.1 mJ

-55 °C (-67 °F)

Tin/Lead with Nickel barrier

50 A

Rated Breaking Capacity at 32 VDC: 50 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

1206SFF300FM/32

Littelfuse

Electric Fuse

Surface Mount

32 V

3 A

End Cap

-55 °C (-67 °F)

Rated Breaking Capacity at 32 VDC: 50 A

0.134 in (3.4 mm)

0.071 in (1.8 mm)

0.134 x 0.071 x 0.051 in (3.4 x 1.8 x 1.3 mm)

0.051 in (1.3 mm)

UL

125 °C (257 °F)

4331.25

Littelfuse

Electric Fuse

Surface Mount

125 V

125 V

120 mA

Wraparound

400 μJ

-55 °C (-67 °F)

Tin Lead Over Nickel

50 A

433

Rated Breaking Capacity at 125 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

FT600-1250-2

Littelfuse

Electric Fuse

Surface Mount

600 V

1.25 A

Wraparound

16 J

Silver

250 A

FT600

Tape And Reel

0.134 in (3.4 mm)

0.134 in (3.4 mm)

e4

0.134 x 0.134 x 0.413 in (3.4 x 3.4 x 10.5 mm)

0.413 in (10.5 mm)

CSA; UL

0476001.MRSN

Littelfuse

Electric Fuse

Surface Mount

250 V

125 V

1 A

Wraparound

193 mJ

-55 °C (-67 °F)

Silver

100 A

1 ms

Rated Breaking Capacity at 125 VDC: 300 A, Pre Arcing Time: Open within 1 ms at 1000% Rated Current

Tape And Reel

0.24 in (6.1 mm)

0.106 in (2.69 mm)

e4

Nano

0.106 in (2.69 mm)

CUL; PSE; UL

125 °C (257 °F)

Fast

0430003.WR

Littelfuse

Electric Fuse

Surface Mount

32 V

32 V

3.15 A

1.33 J

-55 °C (-67 °F)

50 A

Tape And Reel

0.125 in (3.18 mm)

0.06 in (1.52 mm)

0402

0.045 in (1.14 mm)

CSA; UL

90 °C (194 °F)

Slow

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.