Surface Mount Fuses – Mouser Chile

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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 (CLP) 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 0.75A .275ohms 443 NANO2 0443.750DR Littelfuse 1: $2.336 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 $2.336 $1.800 $1.641 $1.447 View Reel $963 $1.276 $1.196 $1.093 $987 $963 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: $1.458 15.055In 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	15.055In Stock	Cut Tape $1.458 $1.310 $1.230 $1.011 View Reel $600 $853 $821 $706 $652 $600 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: $1.880 12.321In 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	12.321In Stock	Cut Tape $1.880 $1.663 $1.435 $1.230 View Reel $964 $1.022 $968 $964 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 4A .016ohms 443 NANO2 0443004.DR Littelfuse 1: $2.586 2.218In Stock	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	2.218In Stock	Cut Tape $2.586 $2.244 $2.073 $1.834 View Reel $1.102 $1.504 $1.379 $1.219 $1.102 $1.102 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: $1.834 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 $1.834 $1.629 $1.401 $1.219 View Reel $934 $1.031 $948 $934 $934 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: $2.438 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 $2.438 $2.222 $1.971 $1.720 View Reel $1.102 $1.481 $1.333 $1.253 $1.102 $1.102 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: $2.586 4.569In 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	4.569In Stock	Cut Tape $2.586 $2.244 $2.073 $1.720 View Reel $1.102 $1.538 $1.401 $1.253 $1.102 $1.102 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: $2.506 91In 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	91In Stock 46.500On Order On Order Ship Dates Mfr. #: 0443003.DR Stock: 91 Can Ship Immediately On Order: 6.000 Expected 11/3/2026 12.000 Expected 11/23/2026 28.500 Expected 1/5/2027 Factory Lead-Time: 19 Weeks	Cut Tape $2.506 $1.971 $1.846 $1.390 View Reel $1.102 $1.265 $1.208 $1.135 $1.102 $1.102 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 3.5A .019ohms 443 NANO2 044303.5DR Littelfuse 1: $2.506 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 $2.506 $2.165 $2.039 $1.663 View Reel $1.102 $1.470 $1.458 $1.344 $1.102 $1.102 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: $1.766 71.995On 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	71.995On Order On Order Ship Dates Mfr. #: 0443.500DR Stock: 0 On Order: 37.495 Expected 11/30/2026 34.500 Expected 1/26/2027 Factory Lead-Time: 19 Weeks	Cut Tape $1.766 $1.504 $1.413 $1.162 $991 Reel $991 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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