Surface Mount Fuses – Mouser Singapore

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443 250V Nano²® Fuses

Littelfuse 443 250V Nano²^® Fuses are time-lag, surface-mount devices designed to support higher voltage applications that have limited space. These fuses enable compliance with the RoHS directive. They are fully compatible with lead-free solder alloy and higher temperature profiles associated with lead-free assembly. Littelfuse 250V Nano² Fuses are available in ratings of 0.50A to 5.0A. The 443 series is ideal for use in a variety of applications, including AC/DC power adapters, telecom equipment system power applications, portable system built-in AC/DC converters, high voltage DC/DC converters, and lighting systems.

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Part #

Surface Mount Fuses 250VAC 0.75A .275ohms 443 NANO2

0443.750DR
Littelfuse
1: $2.79
4,060In Stock

Mfr. Part No.
0443.750DR

Mouser Part No
576-0443.750DR

Littelfuse

Surface Mount Fuses 250VAC 0.75A .275ohms 443 NANO2

Learn More

Datasheet

4,060In Stock

Cut Tape

$2.79

$2.49

$2.18

$1.86

View

Reel

$1.15

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

750 mA

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

275 mOhms

Surface Mount Fuses 250VAC 1A .18ohms 443 NANO2

0443001.DR
Littelfuse
1: $2.26
15,853In Stock

Mfr. Part No.
0443001.DR

Mouser Part No
576-0443001.DR

Littelfuse

Surface Mount Fuses 250VAC 1A .18ohms 443 NANO2

Learn More

Datasheet

15,853In Stock

Cut Tape

$2.26

$2.03

$1.84

$1.55

View

Reel

$1.14

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

1 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

180 mOhms

Surface Mount Fuses 250VAC 2A .052ohms 443 NANO2

0443002.DR
Littelfuse
1: $2.38
6,707In Stock
6,000Expected 15/12/2026

Mfr. Part No.
0443002.DR

Mouser Part No
576-0443002.DR

Littelfuse

Surface Mount Fuses 250VAC 2A .052ohms 443 NANO2

Learn More

Datasheet

6,707In Stock

6,000Expected 15/12/2026

Cut Tape

$2.38

$2.12

$1.77

$1.47

View

Reel

$1.13

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

2 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

52 mOhms

Surface Mount Fuses 250VAC 3A .028ohms 443 NANO2

0443003.DR
Littelfuse
1: $2.71
5,300In Stock
6,000Expected 30/12/2026

Mfr. Part No.
0443003.DR

Mouser Part No
576-0443003.DR

Littelfuse

Surface Mount Fuses 250VAC 3A .028ohms 443 NANO2

Learn More

Datasheet

5,300In Stock

6,000Expected 30/12/2026

Cut Tape

$2.71

$2.35

$2.22

$1.78

View

Reel

$1.15

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

3 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

28 mOhms

Surface Mount Fuses 250VAC 4A .016ohms 443 NANO2

0443004.DR
Littelfuse
1: $2.80
4,273In Stock

Mfr. Part No.
0443004.DR

Mouser Part No
576-0443004.DR

Littelfuse

Surface Mount Fuses 250VAC 4A .016ohms 443 NANO2

Learn More

Datasheet

4,273In Stock

Cut Tape

$2.80

$2.54

$2.23

$1.89

View

Reel

$1.15

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

4 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

16 mOhms

Surface Mount Fuses 250VAC 5A .0115ohms 443 NANO2

0443005.DR
Littelfuse
1: $2.00
3,329In Stock

Mfr. Part No.
0443005.DR

Mouser Part No
576-0443005.DR

Littelfuse

Surface Mount Fuses 250VAC 5A .0115ohms 443 NANO2

Learn More

Datasheet

3,329In Stock

Cut Tape

$2.00

$1.74

$1.63

$1.35

View

Reel

$1.09

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

5 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

11.5 mOhms

Surface Mount Fuses 250VAC 1.5A .1ohms 443 NANO2

044301.5DR
Littelfuse
1: $2.94
1,215In Stock
1,500Expected 28/9/2026

Mfr. Part No.
044301.5DR

Mouser Part No
576-044301.5DR

Littelfuse

Surface Mount Fuses 250VAC 1.5A .1ohms 443 NANO2

Learn More

Datasheet

1,215In Stock

1,500Expected 28/9/2026

Cut Tape

$2.94

$2.68

$2.34

$1.99

View

Reel

$1.15

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

1.5 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

100 mOhms

Surface Mount Fuses 250VAC 2.5A .035ohms 443 NANO2

044302.5DR
Littelfuse
1: $2.88
119In Stock
4,500Expected 6/10/2026

Mfr. Part No.
044302.5DR

Mouser Part No
576-044302.5DR

Littelfuse

Surface Mount Fuses 250VAC 2.5A .035ohms 443 NANO2

Learn More

Datasheet

119In Stock

4,500Expected 6/10/2026

Cut Tape

$2.88

$2.60

$2.46

$1.99

View

Reel

$1.15

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

2.5 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

35 mOhms

Surface Mount Fuses 250VAC 3.5A .019ohms 443 NANO2

044303.5DR
Littelfuse
1: $2.99
211In Stock
1,500Expected 10/8/2026

Mfr. Part No.
044303.5DR

Mouser Part No
576-044303.5DR

Littelfuse

Surface Mount Fuses 250VAC 3.5A .019ohms 443 NANO2

Learn More

Datasheet

211In Stock

1,500Expected 10/8/2026

Cut Tape

$2.99

$2.58

$2.43

$1.99

View

Reel

$1.15

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

3.5 A

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

19 mOhms

Surface Mount Fuses 250VAC 0.5A .6ohms 443 NANO2

0443.500DR
Littelfuse
1: $2.03
18,015On Order

Mfr. Part No.
0443.500DR

Mouser Part No
576-0443.500DR

Littelfuse

Surface Mount Fuses 250VAC 0.5A .6ohms 443 NANO2

Learn More

Datasheet

18,015On Order

Cut Tape

$2.03

$1.80

$1.69

$1.39

$1.17

Reel

$1.14

MouseReel Available

Min.: 1
Mult.: 1

: 1,500

443

Surface Mount Fuses

Time Delay / Slow Blow

500 mA

250 VAC

125 VDC

50 A, 100 A

10.08 mm x 3.05 mm

- 55 C

+ 125 C

Reel, Cut Tape, MouseReel

600 mOhms

443 250V Nano²® Fuses

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