Surface Mount Fuses – Mouser Mexico

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452/454 Series SMT Fuses

Littelfuse 452/454 Series SMT Fuses are part of the NANO^2®Slo-Blo^® series fuse family, which features enhanced inrush withstand characteristics over existing NANO²Fast-Acting fuses. This "time delay" fuse design accommodates inrush currents that normally cause a fast-acting fuse to open, helping solve the nuisance “opening” problem. The compact 452/454 series provides low-temperature re-rating and contains models in a wide range of current ratings (from 0.375A to 12A). These Slo-Blo fuses can operate between -55°C and 125°C temperatures. Littelfuse 452/454 series fuses are ideal for game consoles, industrial equipment, computer servers, laptops, power supplies, and can serve as the AC line fuse in LED lighting applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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 125VAC 3A .034ohms 452 NANO2 0452003.NRL Littelfuse 1: $4.07 13,017In Stock	Mfr. Part # 0452003.NRL Mouser Part # 576-0452003.NRL	Littelfuse	Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	13,017In Stock	Cut Tape $4.07 $3.50 $3.25 $2.68 View Reel $1.79 $2.41 $2.22 $2.00 $1.86 $1.79 $1.79 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	3 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	34 mOhms
Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2 045202.5MRL Littelfuse 1: $4.07 10,409In Stock	Mfr. Part # 045202.5MRL Mouser Part # 576-045202.5MRL	Littelfuse	Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	10,409In Stock	Cut Tape $4.07 $3.52 $3.25 $2.70 View Reel $1.56 $2.44 $2.24 $2.07 $1.56 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow 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	45 mOhms
Surface Mount Fuses 125VAC 4A .0186ohms 452 NANO2 0452004.NRL Littelfuse 1: $3.67 4,559In Stock	Mfr. Part # 0452004.NRL Mouser Part # 576-0452004.NRL	Littelfuse	Surface Mount Fuses 125VAC 4A .0186ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	4,559In Stock	Cut Tape $3.67 $3.42 $2.90 $2.52 View Reel $1.68 $2.22 $2.17 $1.82 $1.70 $1.68 $1.68 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	452	Surface Mount Fuses	Time Delay / Slow Blow	4 A	125 VAC	125 VDC		NANO			Reel, Cut Tape, MouseReel
Surface Mount Fuses 125VAC 5A .0136ohms 452 NANO2 0452005.NRL Littelfuse 1: $3.48 2,441In Stock	Mfr. Part # 0452005.NRL Mouser Part # 576-0452005.NRL	Littelfuse	Surface Mount Fuses 125VAC 5A .0136ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	2,441In Stock	Cut Tape $3.48 $3.21 $2.90 $2.55 View Reel $1.57 $2.22 $2.15 $1.89 $1.70 $1.57 $1.57 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	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	13.6 mOhms
Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2 0452.375MRSN Littelfuse 1: $3.12 2,017In Stock	Mfr. Part # 0452.375MRSN Mouser Part # 576-0452.375MRSN	Littelfuse	Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	2,017In Stock	Cut Tape $3.12 $2.83 $2.69 $2.17 View Reel $1.30 $1.85 $1.79 $1.52 $1.30 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow 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, Cut Tape, MouseReel	1.2 Ohms
Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2 0452.375NRL Littelfuse 1: $3.67 6,227In Stock	Mfr. Part # 0452.375NRL Mouser Part # 576-0452.375NRL	Littelfuse	Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	6,227In Stock	Cut Tape $3.67 $3.42 $3.24 $2.63 View Reel $1.68 $2.22 $2.17 $1.82 $1.70 $1.68 $1.68 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow 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, Cut Tape, MouseReel	1.2 Ohms
Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2 045201.5NRL Littelfuse 1: $3.67 5,870In Stock	Mfr. Part # 045201.5NRL Mouser Part # 576-045201.5NRL	Littelfuse	Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	5,870In Stock	Cut Tape $3.67 $3.42 $3.25 $2.63 View Reel $1.68 $2.22 $2.17 $1.82 $1.70 $1.68 $1.68 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	1.5 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	93 mOhms
Surface Mount Fuses 125VAC 5A .0136ohms 454 NANO2 0454005.NR Littelfuse 1: $3.06 7,587In Stock	Mfr. Part # 0454005.NR Mouser Part # 576-0454005.NR	Littelfuse	Surface Mount Fuses 125VAC 5A .0136ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	7,587In Stock	Cut Tape $3.06 $2.78 $2.65 $2.13 View Reel $1.27 $1.82 $1.77 $1.50 $1.40 $1.27 $1.27 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	454	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	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	13.6 mOhms
Surface Mount Fuses 125VAC 0.75A .36ohms 452 NANO2 0452.750NRL Littelfuse 1: $3.67 1,871In Stock	Mfr. Part # 0452.750NRL Mouser Part # 576-0452.750NRL	Littelfuse	Surface Mount Fuses 125VAC 0.75A .36ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,871In Stock	Cut Tape $3.67 $3.42 $3.25 $2.63 View Reel $1.57 $2.22 $1.68 $1.57 $1.57 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow 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	360 mOhms
Surface Mount Fuses 10A 0452010.MRL Littelfuse 1: $5.23 13,217In Stock	Mfr. Part # 0452010.MRL Mouser Part # 576-0452010.MRL	Littelfuse	Surface Mount Fuses 10A Learn More about Littelfuse 452 454 smt fuses	Datasheet	13,217In Stock	Cut Tape $5.23 $4.56 $4.29 $3.47 View Reel $2.43 $3.07 $2.82 $2.54 $2.43 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Fuses	Time Delay / Slow Blow	10 A		75 VDC	50 A, 50 A, 100 A	NANO	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	8 mOhms
Surface Mount Fuses 6.3A 045206.3MRL Littelfuse 1: $5.23 1,773In Stock	Mfr. Part # 045206.3MRL Mouser Part # 576-045206.3MRL	Littelfuse	Surface Mount Fuses 6.3A Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,773In Stock	Cut Tape $5.23 $4.56 $4.29 $3.64 View Reel $2.43 $3.35 $3.02 $2.78 $2.43 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Fuses	Time Delay / Slow Blow			75 VDC	50 A, 50 A, 100 A	NANO	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	12.3 mOhms
Surface Mount Fuses 10A 0454010.MR Littelfuse 1: $4.08 4,457In Stock	Mfr. Part # 0454010.MR Mouser Part # 576-0454010.MR	Littelfuse	Surface Mount Fuses 10A Learn More about Littelfuse 452 454 smt fuses	Datasheet	4,457In Stock	Cut Tape $4.08 $3.56 $3.37 $2.72 View Reel $1.89 $2.39 $2.20 $1.99 $1.89 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	Surface Mount Fuses	Time Delay / Slow Blow	10 A		75 VDC	50 A, 50 A, 100 A	NANO	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	8 mOhms
Surface Mount Fuses 10A 0454010.NR Littelfuse 1: $4.20 4,722In Stock	Mfr. Part # 0454010.NR Mouser Part # 576-0454010.NR	Littelfuse	Surface Mount Fuses 10A Learn More about Littelfuse 452 454 smt fuses	Datasheet	4,722In Stock	Cut Tape $4.20 $3.65 $3.46 $2.80 View Reel $1.89 $2.47 $2.26 $2.04 $1.89 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	Surface Mount Fuses	Time Delay / Slow Blow	10 A		75 VDC	50 A, 50 A, 100 A	NANO	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	8 mOhms
Surface Mount Fuses 6.3A 045406.3MR Littelfuse 1: $4.20 1,035In Stock	Mfr. Part # 045406.3MR Mouser Part # 576-045406.3MR	Littelfuse	Surface Mount Fuses 6.3A Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,035In Stock	Cut Tape $4.20 $3.65 $3.46 $2.80 View Reel $1.89 $2.47 $2.26 $2.04 $1.89 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	Surface Mount Fuses	Time Delay / Slow Blow			75 VDC	50 A, 50 A, 100 A	NANO	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	12.3 mOhms
Surface Mount Fuses 125VAC 1A .225ohms 452 NANO2 0452001.MRL Littelfuse 1: $2.80 44,487In Stock	Mfr. Part # 0452001.MRL Mouser Part # 576-0452001.MRL	Littelfuse	Surface Mount Fuses 125VAC 1A .225ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	44,487In Stock	Cut Tape $2.80 $2.73 $2.35 $2.05 Reel $1.05 View $1.72 $1.59 $1.44 $0.893 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	1 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	225 mOhms
Surface Mount Fuses 125VAC 2A .0625ohms 452 NANO2 0452002.MRL Littelfuse 1: $3.06 39,906In Stock	Mfr. Part # 0452002.MRL Mouser Part # 576-0452002.MRL	Littelfuse	Surface Mount Fuses 125VAC 2A .0625ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	39,906In Stock	Cut Tape $3.06 $2.73 $2.35 $2.05 Reel $0.969 View $1.72 $1.55 $1.39 $0.893 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow 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	62.5 mOhms
Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2 0452003.MRL Littelfuse 1: $3.54 41,050In Stock	Mfr. Part # 0452003.MRL Mouser Part # 576-0452003.MRL	Littelfuse	Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	41,050In Stock	Cut Tape $3.54 $3.17 $2.72 $2.37 Reel $1.07 View $1.98 $1.83 $1.66 $1.02 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	3 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	34 mOhms
Surface Mount Fuses 125VAC 5A .0136ohms 452 NANO2 0452005.MRL Littelfuse 1: $3.51 87,471In Stock	Mfr. Part # 0452005.MRL Mouser Part # 576-0452005.MRL	Littelfuse	Surface Mount Fuses 125VAC 5A .0136ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	87,471In Stock	Cut Tape $3.51 $3.15 $2.68 $2.37 Reel $1.00 View $1.99 $1.83 $1.24 $0.957 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	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	13.6 mOhms
Surface Mount Fuses 72VAC 7A .0105ohms 452 NANO2 0452007.MRL Littelfuse 1: $5.03 11,578In Stock	Mfr. Part # 0452007.MRL Mouser Part # 576-0452007.MRL	Littelfuse	Surface Mount Fuses 72VAC 7A .0105ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	11,578In Stock	Cut Tape $5.03 $4.65 $4.29 $3.56 View Reel $2.43 $3.22 $2.95 $2.72 $2.43 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	7 A	72 VAC	60 VDC	50 A, 50 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	10.5 mOhms
Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2 045201.5MRL Littelfuse 1: $2.90 29,169In Stock	Mfr. Part # 045201.5MRL Mouser Part # 576-045201.5MRL	Littelfuse	Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	29,169In Stock	Cut Tape $2.90 $2.61 $2.43 $1.77 $1.63 Reel $1.00 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	1.5 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	93 mOhms
Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2 0452.375MRL Littelfuse 1: $3.67 7,867In Stock	Mfr. Part # 0452.375MRL Mouser Part # 576-0452.375MRL	Littelfuse	Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	7,867In Stock	Cut Tape $3.67 $3.42 $2.96 $2.44 View Reel $1.79 $2.17 $1.82 $1.79 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow 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, Cut Tape, MouseReel	1.2 Ohms
Surface Mount Fuses 125VAC 0.75A .36ohms 452 NANO2 0452.750MRL Littelfuse 1: $3.58 1,202In Stock 10,000On Order	Mfr. Part # 0452.750MRL Mouser Part # 576-0452.750MRL	Littelfuse	Surface Mount Fuses 125VAC 0.75A .36ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,202In Stock 10,000On Order On Order Ship Dates Mfr. #: 0452.750MRL Stock: 1,202 Can Ship Immediately On Order: 5,000 Expected 12/7/2026 5,000 Expected 2/16/2027 Factory Lead-Time: 19 Weeks	Cut Tape $3.58 $3.19 $2.95 $2.44 View Reel $1.79 $2.17 $2.04 $1.81 $1.79 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow 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	360 mOhms
Surface Mount Fuses 125VAC 1A .225ohms 452 NANO2 0452001.NRL Littelfuse 1: $3.93 3,894In Stock	Mfr. Part # 0452001.NRL Mouser Part # 576-0452001.NRL	Littelfuse	Surface Mount Fuses 125VAC 1A .225ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	3,894In Stock	Cut Tape $3.93 $3.46 $3.25 $2.65 View Reel $1.79 $2.34 $2.20 $1.94 $1.79 $1.79 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	1 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	225 mOhms
Surface Mount Fuses 125VAC 2A .0625ohms 452 NANO2 0452002.NRL Littelfuse 1: $3.77 4,386In Stock	Mfr. Part # 0452002.NRL Mouser Part # 576-0452002.NRL	Littelfuse	Surface Mount Fuses 125VAC 2A .0625ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	4,386In Stock	Cut Tape $3.77 $3.50 $3.13 $2.70 View Reel $1.79 $2.29 $2.22 $1.89 $1.79 $1.79 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow 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	62.5 mOhms
Surface Mount Fuses 125VAC 4A .0186ohms 452 NANO2 0452004.MRL Littelfuse 1: $2.86 22,361In Stock 15,000Expected 3/25/2027	Mfr. Part # 0452004.MRL Mouser Part # 576-0452004.MRL	Littelfuse	Surface Mount Fuses 125VAC 4A .0186ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	22,361In Stock 15,000Expected 3/25/2027	Cut Tape $2.86 $2.59 $2.24 $1.98 Reel $0.867 View $1.33 $1.21 $1.08 $0.855 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	4 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	18.6 mOhms

452/454 Series SMT Fuses

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