Surface Mount Fuses – Mouser Canada

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 10

Applied Filters:

Current Rating

Resistance

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

0443.750DR
Littelfuse
1: $2.95
4,060In Stock

Mfr. Part #
0443.750DR

Mouser Part #
576-0443.750DR

Littelfuse

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

Learn More

Datasheet

4,060In Stock

Cut Tape

$2.95

$2.64

$2.30

$1.97

View

Reel

$1.22

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: $2.39
15,401In Stock

Mfr. Part #
0443001.DR

Mouser Part #
576-0443001.DR

Littelfuse

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

Learn More

Datasheet

15,401In Stock

Cut Tape

$2.39

$2.15

$1.94

$1.64

View

Reel

$1.21

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: $2.52
9,542In Stock
3,000Expected 2026-12-15

Mfr. Part #
0443002.DR

Mouser Part #
576-0443002.DR

Littelfuse

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

Learn More

Datasheet

9,542In Stock

3,000Expected 2026-12-15

Cut Tape

$2.52

$2.25

$1.87

$1.56

View

Reel

$1.20

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: $2.87
5,189In Stock
6,000Expected 2026-08-31

Mfr. Part #
0443003.DR

Mouser Part #
576-0443003.DR

Littelfuse

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

Learn More

Datasheet

5,189In Stock

6,000Expected 2026-08-31

Cut Tape

$2.87

$2.49

$2.35

$1.89

View

Reel

$1.22

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: $2.97
4,238In Stock

Mfr. Part #
0443004.DR

Mouser Part #
576-0443004.DR

Littelfuse

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

Learn More

Datasheet

4,238In Stock

Cut Tape

$2.97

$2.69

$2.36

$2.00

View

Reel

$1.22

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: $2.12
3,328In Stock

Mfr. Part #
0443005.DR

Mouser Part #
576-0443005.DR

Littelfuse

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

Learn More

Datasheet

3,328In Stock

Cut Tape

$2.12

$1.84

$1.73

$1.43

View

Reel

$1.15

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: $3.11
1,215In Stock
1,500Expected 2026-08-06

Mfr. Part #
044301.5DR

Mouser Part #
576-044301.5DR

Littelfuse

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

Learn More

Datasheet

1,215In Stock

1,500Expected 2026-08-06

Cut Tape

$3.11

$2.84

$2.48

$2.10

View

Reel

$1.22

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: $3.05
119In Stock
4,500Expected 2026-10-06

Mfr. Part #
044302.5DR

Mouser Part #
576-044302.5DR

Littelfuse

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

Learn More

Datasheet

119In Stock

4,500Expected 2026-10-06

Cut Tape

$3.05

$2.75

$2.61

$2.10

View

Reel

$1.22

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: $2.95
11In Stock
1,500Expected 2026-08-03

Mfr. Part #
044303.5DR

Mouser Part #
576-044303.5DR

Littelfuse

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

Learn More

Datasheet

11In Stock

1,500Expected 2026-08-03

Cut Tape

$2.95

$2.66

$2.53

$2.04

View

Reel

$1.22

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: $2.15
31,520On Order

Mfr. Part #
0443.500DR

Mouser Part #
576-0443.500DR

Littelfuse

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

Learn More

Datasheet

31,520On Order

Cut Tape

$2.15

$1.90

$1.79

$1.47

$1.24

Reel

$1.21

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

Mouser Electronics®

Company

Resources

Support