Surface Mount Fuses – Mouser Japan

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NANO Fuses

Littelfuse NANO® Fuses are fast-acting, high-performance fuses available in a wide range of available current ratings. The portfolio includes 448 NANO²® SMF Fuses, which are fast-acting fuses available in current ratings from 62mA to 15A. The 443 NANO² series features square surface-mount, time-lag devices with a 250V_AC voltage rating. Littelfuse 449 NANO² Slo-Blo^® Fuses offer enhanced inrush withstand characteristics over NANO² Fast-Acting Fuses. The 456 series is designed to support higher current requirements and is fully compatible with lead-free solder alloys. Littelfuse 456 fuses are ideal for storage system powers, cooling fan systems for PC servers, and base station power supplies. Littelfuse NANO Fuses include additional series as well.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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 350VAC 1.6A .0473ohms 885 NANO2 088501.6DR Littelfuse 1: ¥901.9 430In Stock	Mfr. Part # 088501.6DR Mouser Part # 576-088501.6DR	Littelfuse	Surface Mount Fuses 350VAC 1.6A .0473ohms 885 NANO2 Learn More about Littelfuse 885 smt fuses	Datasheet	430In Stock	Cut Tape ¥901.9 ¥810.6 ¥777.3 ¥649.5 View Reel ¥463.4 ¥538.2 ¥516.6 ¥465.1 ¥463.4 ¥463.4 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	885	Surface Mount Fuses	Fast Blow	1.6 A	350 VAC	500 VDC	100 A, 100 A	10.86 mm x 4.78 mm	- 40 C	+ 105 C	Reel, Cut Tape, MouseReel	47.3 mOhms
Surface Mount Fuses 250VAC 0.5A .6ohms 443 NANO2 0443.500DR Littelfuse 1: ¥257.5 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 ¥257.5 ¥219.3 ¥206 ¥169.4 ¥144.5 Reel ¥144.5 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
Surface Mount Fuses 125VAC 0.2A 1.24ohms 448 NANO2 0448.200MR Littelfuse 1: ¥865.4 1,985Expected 12/15/2026	Mfr. Part # 0448.200MR Mouser Part # 576-0448.200MR	Littelfuse	Surface Mount Fuses 125VAC 0.2A 1.24ohms 448 NANO2 Learn More about Littelfuse nano fuses	Datasheet	1,985Expected 12/15/2026	Cut Tape ¥865.4 ¥719.2 ¥662.7 ¥549.8 View Reel ¥382 ¥508.3 ¥456.8 ¥420.2 ¥382 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	448	Surface Mount Fuses	Fast Blow	200 mA	125 VAC	125 VDC	50 A, 50 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	1.24 Ohms
Surface Mount Fuses 125VAC 0.2A .8372ohms 451 NANO2 0451.200MRL Littelfuse 1: ¥770.7 2,995Expected 2/25/2027	Mfr. Part # 0451.200MRL Mouser Part # 576-0451.200MRL	Littelfuse	Surface Mount Fuses 125VAC 0.2A .8372ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	2,995Expected 2/25/2027	Cut Tape ¥770.7 ¥710.9 ¥656.1 ¥544.8 View Reel ¥378.7 ¥503.3 ¥451.8 ¥395.3 ¥378.7 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	451	Surface Mount Ceramic Fuses	Fast Blow	200 mA	125 VAC	125 VDC	50 A, 50 A, 300 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	837.2 mOhms
Surface Mount Fuses 125VAC 0.75A .1444ohms 451 NANO2 0451.750MRL Littelfuse 1: ¥410.3 11,047On Order	Mfr. Part # 0451.750MRL Mouser Part # 576-0451.750MRL	Littelfuse	Surface Mount Fuses 125VAC 0.75A .1444ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	11,047On Order On Order Ship Dates Mfr. #: 0451.750MRL Stock: 0 On Order: 5,047 Expected 10/30/2026 6,000 Expected 3/18/2027 Factory Lead-Time: 31 Weeks	Cut Tape ¥410.3 ¥342.2 ¥315.6 ¥247.5 View Reel ¥169.4 ¥209.3 ¥202.6 ¥172.7 ¥169.4 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	451	Surface Mount Ceramic Fuses	Fast Blow	750 mA	125 VAC	125 VDC	50 A, 50 A, 300 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	144.4 mOhms
Surface Mount Fuses 125VAC 2.5A .0286ohms 451 NANO2 045102.5NRL Littelfuse 1: ¥418.6 4,932Expected 3/26/2027	Mfr. Part # 045102.5NRL Mouser Part # 576-045102.5NRL	Littelfuse	Surface Mount Fuses 125VAC 2.5A .0286ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	4,932Expected 3/26/2027	Cut Tape ¥418.6 ¥348.8 ¥322.2 ¥267.4 View Reel ¥169.4 ¥245.8 ¥220.9 ¥177.7 ¥169.4 ¥169.4 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	2.5 A	125 VAC	125 VDC	50 A, 50 A, 300 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	28.6 mOhms
Surface Mount Fuses 125VAC 2A .0367ohms 453 NANO2 0453002.MR Littelfuse 1: ¥229.2 21,000On Order	Mfr. Part # 0453002.MR Mouser Part # 576-0453002.MR	Littelfuse	Surface Mount Fuses 125VAC 2A .0367ohms 453 NANO2 Learn More about Littelfuse nano fuses	Datasheet	21,000On Order On Order Ship Dates Mfr. #: 0453002.MR Stock: 0 On Order: 9,000 Expected 11/23/2026 12,000 Expected 3/25/2027 Factory Lead-Time: 23 Weeks	Cut Tape ¥229.2 ¥207.6 ¥182.7 ¥162.9 View Reel ¥131.9 ¥142.2 ¥131.9 ¥131.9 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	453	Surface Mount Ceramic Fuses	Fast Blow	2 A	125 VAC	125 VDC	50 A, 50 A, 300 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	36.7 mOhms
Surface Mount Fuses 125VAC 2.5A .0286ohms 453 NANO2 045302.5MR Littelfuse 1: ¥348.8 1,993Expected 12/7/2026	Mfr. Part # 045302.5MR Mouser Part # 576-045302.5MR	Littelfuse	Surface Mount Fuses 125VAC 2.5A .0286ohms 453 NANO2 Learn More about Littelfuse nano fuses	Datasheet	1,993Expected 12/7/2026	Cut Tape ¥348.8 ¥315.6 ¥280.7 ¥244.2 View Reel ¥150.8 ¥209.3 ¥191 ¥171.1 ¥150.8 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	453	Surface Mount Ceramic Fuses	Fast Blow	2.5 A	125 VAC	125 VDC	50 A, 50 A, 300 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	28.6 mOhms
Surface Mount Fuses 50A 125V HI CURRENT 0456050.DRSD Littelfuse 1: ¥1,377 2,408On Order	Mfr. Part # 0456050.DRSD Mouser Part # 576-0456050.DRSD	Littelfuse	Surface Mount Fuses 50A 125V HI CURRENT Learn More about Littelfuse 456sd fuses	Datasheet	2,408On Order On Order Ship Dates Mfr. #: 0456050.DRSD Stock: 0 On Order: 908 Expected 11/3/2026 1,500 Expected 2/23/2027 Factory Lead-Time: 21 Weeks	Cut Tape ¥1,377 ¥1,247.4 ¥1,126.2 ¥950.1 View Reel ¥681 ¥817.2 ¥747.5 ¥729.2 ¥681 ¥681 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	456SD	Surface Mount Ceramic Fuses	Fast Blow	50 A	125 VAC	75 VDC	100 A, 600 A	12.2 mm x 4.5 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	1.05 mOhms
Surface Mount Fuses 125VAC 1.25A .078ohms 453 NANO2 04531.25MR Littelfuse 1: ¥320.6 995Expected 3/24/2027	Mfr. Part # 04531.25MR Mouser Part # 576-04531.25MR	Littelfuse	Surface Mount Fuses 125VAC 1.25A .078ohms 453 NANO2 Learn More about Littelfuse nano fuses	Datasheet	995Expected 3/24/2027	Cut Tape ¥320.6 ¥289 ¥274.1 ¥220.9 View Reel ¥131.7 ¥187.7 ¥182.7 ¥155.3 ¥131.7 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	453	Surface Mount Ceramic Fuses	Fast Blow	1.25 A	125 VAC	125 VDC	50 A, 50 A, 300 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	78 mOhms
Surface Mount Fuses 125VAC 0.8A .1907ohms 448 NANO2 0448.800MR Littelfuse 1: ¥355.5 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # 0448.800MR Mouser Part # 576-0448.800MR	Littelfuse	Surface Mount Fuses 125VAC 0.8A .1907ohms 448 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 23 Weeks	Cut Tape ¥355.5 ¥295.7 ¥272.4 ¥225.9 View Reel ¥171.1 ¥209.3 ¥187.7 ¥184.4 ¥171.1 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	448	Surface Mount Fuses	Fast Blow	800 mA	125 VAC	125 VDC	50 A, 50 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	190.7 mOhms
Surface Mount Fuses 125VAC 0.062A 5.5ohms 451 NANO2 0451.062NRL Littelfuse 5,000: ¥632.8 Non-Stocked Lead-Time 27 Weeks	Mfr. Part # 0451.062NRL Mouser Part # 576-0451.062NRL	Littelfuse	Surface Mount Fuses 125VAC 0.062A 5.5ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel ¥632.8	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	62 mA	125 VAC	125 VDC	50 A, 50 A, 300 A	NANO	- 55 C	+ 125 C	Reel	5.5 Ohms
Surface Mount Fuses 125VAC 0.08A 4.05ohms 451 NANO2 0451.080NRL Littelfuse 5,000: ¥624.5 Non-Stocked Lead-Time 27 Weeks	Mfr. Part # 0451.080NRL Mouser Part # 576-0451.080NRL	Littelfuse	Surface Mount Fuses 125VAC 0.08A 4.05ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel ¥624.5	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	80 mA	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	4.05 Ohms
Surface Mount Fuses 125VAC 0.1A 3.1ohms 451 NANO2 0451.100NRL Littelfuse 5,000: ¥413.6 Non-Stocked Lead-Time 27 Weeks	Mfr. Part # 0451.100NRL Mouser Part # 576-0451.100NRL	Littelfuse	Surface Mount Fuses 125VAC 0.1A 3.1ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel ¥413.6	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	100 mA	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	3.1 Ohms
Surface Mount Fuses 125VAC 0.16A 1.2157ohms 451 NANO2 0451.160NRL Littelfuse 5,000: ¥413.6 Non-Stocked Lead-Time 27 Weeks	Mfr. Part # 0451.160NRL Mouser Part # 576-0451.160NRL	Littelfuse	Surface Mount Fuses 125VAC 0.16A 1.2157ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel ¥413.6	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	160 mA	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	1.2157 Ohms
Surface Mount Fuses 125VAC 0.2A .8372ohms 451 NANO2 0451.200NRL Littelfuse 5,000: ¥421.9 Non-Stocked Lead-Time 27 Weeks	Mfr. Part # 0451.200NRL Mouser Part # 576-0451.200NRL	Littelfuse	Surface Mount Fuses 125VAC 0.2A .8372ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel ¥421.9	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	200 mA	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	837.2 mOhms
Surface Mount Fuses 125VAC 0.315A .3918ohms 451 NANO2 0451.315NRL Littelfuse 5,000: ¥182.7 Non-Stocked Lead-Time 27 Weeks	Mfr. Part # 0451.315NRL Mouser Part # 576-0451.315NRL	Littelfuse	Surface Mount Fuses 125VAC 0.315A .3918ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel ¥182.7	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	315 mA	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	391.8 mOhms
Surface Mount Fuses 125VAC 0.375A .4541ohms 451 NANO2 0451.375NRL Littelfuse 5,000: ¥177.7 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # 0451.375NRL Mouser Part # 576-0451.375NRL	Littelfuse	Surface Mount Fuses 125VAC 0.375A .4541ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 23 Weeks	Reel ¥177.7	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	375 mA	125 VAC	125 VDC	50 A, 50 A, 300 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel	454.1 mOhms
Surface Mount Fuses 125VAC 0.4A .4233ohms 451 NANO2 0451.400NRL Littelfuse 5,000: ¥171.1 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # 0451.400NRL Mouser Part # 576-0451.400NRL	Littelfuse	Surface Mount Fuses 125VAC 0.4A .4233ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 23 Weeks	Reel ¥171.1	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	400 mA	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	423.3 mOhms
Surface Mount Fuses 125VAC 0.63A .2022ohms 451 NANO2 0451.630NRL Littelfuse 5,000: ¥177.7 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # 0451.630NRL Mouser Part # 576-0451.630NRL	Littelfuse	Surface Mount Fuses 125VAC 0.63A .2022ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 23 Weeks	Reel ¥177.7	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	630 mA	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	202.2 mOhms
Surface Mount Fuses 125VAC 0.8A .1355ohms 451 NANO2 0451.800NRL Littelfuse 5,000: ¥177.7 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # 0451.800NRL Mouser Part # 576-0451.800NRL	Littelfuse	Surface Mount Fuses 125VAC 0.8A .1355ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 23 Weeks	Reel ¥177.7	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	800 mA	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	135.5 mOhms
Surface Mount Fuses 125VAC 8A .0077ohms 451 NANO2 0451008.NRL Littelfuse 5,000: ¥176.1 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # 0451008.NRL Mouser Part # 576-0451008.NRL	Littelfuse	Surface Mount Fuses 125VAC 8A .0077ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 23 Weeks	Reel ¥176.1	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	8 A	125 VAC	125 VDC	400 A	NANO	- 55 C	+ 125 C	Reel	7.7 mOhms
Surface Mount Fuses 125VAC 1.6A .058ohms 451 NANO2 045101.6NRL Littelfuse 5,000: ¥171.1 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # 045101.6NRL Mouser Part # 576-045101.6NRL	Littelfuse	Surface Mount Fuses 125VAC 1.6A .058ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 23 Weeks	Reel ¥171.1	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	1.6 A	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	58 mOhms
Surface Mount Fuses 65VAC 12A .0049ohms 451 NANO2 0451012.NRL Littelfuse 5,000: ¥279 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # 0451012.NRL Mouser Part # 576-0451012.NRL	Littelfuse	Surface Mount Fuses 65VAC 12A .0049ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 23 Weeks	Reel ¥279	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	12 A	65 VAC	65 VDC	400 A	NANO	- 55 C	+ 125 C	Reel	4.9 mOhms
Surface Mount Fuses 125VAC 3.5A .02ohms 451 NANO2 045103.5NRL Littelfuse 5,000: ¥171.1 Non-Stocked Lead-Time 23 Weeks	Mfr. Part # 045103.5NRL Mouser Part # 576-045103.5NRL	Littelfuse	Surface Mount Fuses 125VAC 3.5A .02ohms 451 NANO2 Learn More about Littelfuse nano fuses	Datasheet	Non-Stocked Lead-Time 23 Weeks	Reel ¥171.1	Min.: 5,000 Mult.: 5,000 : 5,000	451	Surface Mount Ceramic Fuses	Fast Blow	3.5 A	125 VAC	125 VDC	300 A	NANO	- 55 C	+ 125 C	Reel	20 mOhms