Surface Mount Fuses – Mouser Peru

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Product	Fuse Type	Current Rating	Voltage Rating AC	Voltage Rating DC	Interrupt Rating	Fuse Size / Group	Minimum Operating Temperature	Maximum Operating Temperature	Packaging	Resistance
Surface Mount Fuses 250VAC 1A .18ohms 443 NANO2 0443001.DR Littelfuse 1: S/7.82 15,080In Stock	Mfr. Part # 0443001.DR Mouser Part # 576-0443001.DR	Littelfuse	Surface Mount Fuses 250VAC 1A .18ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	15,080In Stock	Cut Tape S/7.82 S/6.97 S/6.03 S/5.18 View Reel S/3.57 S/4.28 S/4.01 S/3.78 S/3.77 S/3.57 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 0.75A .275ohms 443 NANO2 0443.750DR Littelfuse 1: S/8.72 4,040In Stock	Mfr. Part # 0443.750DR Mouser Part # 576-0443.750DR	Littelfuse	Surface Mount Fuses 250VAC 0.75A .275ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	4,040In Stock	Cut Tape S/8.72 S/5.76 S/5.10 S/4.71 View Reel S/3.37 S/4.20 S/3.89 S/3.69 S/3.63 S/3.37 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 2A .052ohms 443 NANO2 0443002.DR Littelfuse 1: S/6.42 12,341In Stock	Mfr. Part # 0443002.DR Mouser Part # 576-0443002.DR	Littelfuse	Surface Mount Fuses 250VAC 2A .052ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	12,341In Stock	Cut Tape S/6.42 S/5.68 S/4.90 S/4.20 View Reel S/3.29 S/3.49 S/3.31 S/3.29 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 5A .0115ohms 443 NANO2 0443005.DR Littelfuse 1: S/6.27 3,015In Stock	Mfr. Part # 0443005.DR Mouser Part # 576-0443005.DR	Littelfuse	Surface Mount Fuses 250VAC 5A .0115ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	3,015In Stock	Cut Tape S/6.27 S/5.57 S/4.79 S/4.16 View Reel S/3.19 S/3.52 S/3.24 S/3.19 S/3.19 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: S/8.33 1,655In Stock	Mfr. Part # 044301.5DR Mouser Part # 576-044301.5DR	Littelfuse	Surface Mount Fuses 250VAC 1.5A .1ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	1,655In Stock	Cut Tape S/8.33 S/7.59 S/6.73 S/5.88 View Reel S/3.76 S/5.06 S/4.55 S/4.28 S/3.76 S/3.76 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: S/8.84 4,574In Stock	Mfr. Part # 044302.5DR Mouser Part # 576-044302.5DR	Littelfuse	Surface Mount Fuses 250VAC 2.5A .035ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	4,574In Stock	Cut Tape S/8.84 S/7.67 S/7.08 S/5.88 View Reel S/3.76 S/5.25 S/4.79 S/4.28 S/3.76 S/3.76 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 3A .028ohms 443 NANO2 0443003.DR Littelfuse 1: S/8.56 46In Stock 46,500On Order	Mfr. Part # 0443003.DR Mouser Part # 576-0443003.DR	Littelfuse	Surface Mount Fuses 250VAC 3A .028ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	46In Stock 46,500On Order On Order Ship Dates Mfr. #: 0443003.DR Stock: 46 Can Ship Immediately On Order: 6,000 Expected 12/30/2026 12,000 Expected 2/9/2027 28,500 Expected 2/15/2027 Factory Lead-Time: 19 Weeks	Cut Tape S/8.56 S/6.73 S/6.31 S/4.75 View Reel S/3.76 S/4.32 S/4.13 S/3.88 S/3.76 S/3.76 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: S/8.84 718In Stock 1,500Expected 10/15/2026	Mfr. Part # 0443004.DR Mouser Part # 576-0443004.DR	Littelfuse	Surface Mount Fuses 250VAC 4A .016ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	718In Stock 1,500Expected 10/15/2026	Cut Tape S/8.84 S/7.67 S/7.08 S/6.27 View Reel S/3.76 S/5.14 S/4.71 S/4.16 S/3.76 S/3.76 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 3.5A .019ohms 443 NANO2 044303.5DR Littelfuse 1: S/8.56 1,449In Stock	Mfr. Part # 044303.5DR Mouser Part # 576-044303.5DR	Littelfuse	Surface Mount Fuses 250VAC 3.5A .019ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	1,449In Stock	Cut Tape S/8.56 S/7.40 S/6.97 S/5.68 View Reel S/3.76 S/5.02 S/4.98 S/4.59 S/3.76 S/3.76 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: S/6.03 71,965On Order	Mfr. Part # 0443.500DR Mouser Part # 576-0443.500DR	Littelfuse	Surface Mount Fuses 250VAC 0.5A .6ohms 443 NANO2 Learn More about Littelfuse 443 smt fuses	Datasheet	71,965On Order On Order Ship Dates Mfr. #: 0443.500DR Stock: 0 On Order: 34,465 Expected 2/15/2027 37,500 Expected 3/15/2027 Factory Lead-Time: 19 Weeks	Cut Tape S/6.03 S/5.14 S/4.83 S/3.97 S/3.39 Reel S/3.39 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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