Surface Mount Fuses – Mouser Singapore

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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 (SGD) 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 2A .0625ohms 452 NANO2 0452002.NRL Littelfuse 1: $3.94 4,384In Stock	Mfr. Part No. 0452002.NRL Mouser Part No 576-0452002.NRL	Littelfuse	Surface Mount Fuses 125VAC 2A .0625ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	4,384In Stock	Cut Tape $3.94 $3.66 $3.28 $2.83 View Reel $1.88 $2.39 $2.33 $1.97 $1.88 $1.88 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 5A .0136ohms 452 NANO2 0452005.MRSN Littelfuse 1: $3.30 1,988In Stock	Mfr. Part No. 0452005.MRSN Mouser Part No 576-0452005.MRSN	Littelfuse	Surface Mount Fuses 125VAC 5A .0136ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,988In Stock	Cut Tape $3.30 $3.03 $2.53 $2.26 View Reel $1.55 $2.08 $1.88 $1.55 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.MRSN Littelfuse 1: $3.11 1,472In Stock	Mfr. Part No. 0452007.MRSN Mouser Part No 576-0452007.MRSN	Littelfuse	Surface Mount Fuses 72VAC 7A .0105ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,472In Stock	Cut Tape $3.11 $2.87 $2.38 $2.20 Reel $1.69 View $1.97 $1.82 $1.55 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 72VAC 7A .0105ohms 452 NANO2 0452007.NRL Littelfuse 1: $4.98 2,205In Stock	Mfr. Part No. 0452007.NRL Mouser Part No 576-0452007.NRL	Littelfuse	Surface Mount Fuses 72VAC 7A .0105ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	2,205In Stock	Cut Tape $4.98 $4.60 $3.81 $3.52 View Reel $2.61 $3.16 $2.91 $2.76 $2.67 $2.61 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	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 72VAC 8A .0088ohms 452 NANO2 0452008.MRL Littelfuse 1: $3.97 2,576In Stock 18,000On Order	Mfr. Part No. 0452008.MRL Mouser Part No 576-0452008.MRL	Littelfuse	Surface Mount Fuses 72VAC 8A .0088ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	2,576In Stock 18,000On Order On Order Ship Dates Mfr. No: 0452008.MRL Stock: 2,576 Can Dispatch Immediately On Order: 4,000 Expected 18/2/2027 4,000 Expected 2/3/2027 10,000 Expected 8/3/2027 Factory Lead Time: 19 Weeks	Cut Tape $3.97 $3.32 $2.92 $2.50 $2.23 Reel $2.23 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	8 A	72 VAC	60 VDC	50 A, 50 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	8.8 mOhms
Surface Mount Fuses 72VAC 12A .0061ohms 452 NANO2 0452012.MRL Littelfuse 1: $4.15 7,286In Stock	Mfr. Part No. 0452012.MRL Mouser Part No 576-0452012.MRL	Littelfuse	Surface Mount Fuses 72VAC 12A .0061ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	7,286In Stock	Cut Tape $4.15 $3.73 $3.26 $2.71 View Reel $2.23 $2.37 $2.23 $2.23 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	12 A	72 VAC	60 VDC	50 A, 50 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	6.1 mOhms
Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2 045202.5NRL Littelfuse 1: $3.69 2,457In Stock	Mfr. Part No. 045202.5NRL Mouser Part No 576-045202.5NRL	Littelfuse	Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	2,457In Stock	Cut Tape $3.69 $3.40 $2.83 $2.60 View Reel $1.88 $2.34 $2.16 $2.00 $1.92 $1.88 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	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 3.5A .0224ohms 452 NANO2 045203.5MRL Littelfuse 1: $3.93 7,688In Stock	Mfr. Part No. 045203.5MRL Mouser Part No 576-045203.5MRL	Littelfuse	Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	7,688In Stock	Cut Tape $3.93 $3.62 $3.24 $2.83 View Reel $1.88 $2.43 $2.23 $2.01 $1.88 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	3.5 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	22.4 mOhms
Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2 045203.5NRL Littelfuse 1: $3.69 3,035In Stock	Mfr. Part No. 045203.5NRL Mouser Part No 576-045203.5NRL	Littelfuse	Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	3,035In Stock	Cut Tape $3.69 $3.40 $2.83 $2.61 View Reel $1.88 $2.34 $2.16 $2.04 $1.88 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	3.5 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	22.4 mOhms
Surface Mount Fuses 125VAC 0.5A .7ohms 454 NANO2 0454.500MR Littelfuse 1: $3.06 2,938In Stock	Mfr. Part No. 0454.500MR Mouser Part No 576-0454.500MR	Littelfuse	Surface Mount Fuses 125VAC 0.5A .7ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	2,938In Stock	Cut Tape $3.06 $2.83 $2.34 $2.16 View Reel $1.52 $1.94 $1.80 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	500 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	700 mOhms
Surface Mount Fuses 125VAC 0.75A .36ohms 454 NANO2 0454.750MR Littelfuse 1: $3.25 1,859In Stock	Mfr. Part No. 0454.750MR Mouser Part No 576-0454.750MR	Littelfuse	Surface Mount Fuses 125VAC 0.75A .36ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,859In Stock	Cut Tape $3.25 $2.84 $2.49 $2.20 View Reel $1.52 $2.05 $1.85 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	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 454 NANO2 0454001.MR Littelfuse 1: $2.27 11,436In Stock 7,000Expected 10/11/2026	Mfr. Part No. 0454001.MR Mouser Part No 576-0454001.MR	Littelfuse	Surface Mount Fuses 125VAC 1A .225ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	11,436In Stock 7,000Expected 10/11/2026	Cut Tape $2.27 $1.90 $1.58 $1.41 $1.33 Reel $1.33 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	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 454 NANO2 0454002.MR Littelfuse 1: $2.33 17,335In Stock	Mfr. Part No. 0454002.MR Mouser Part No 576-0454002.MR	Littelfuse	Surface Mount Fuses 125VAC 2A .0625ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	17,335In Stock	Cut Tape $2.33 $1.90 $1.58 $1.41 $1.33 Reel $1.33 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	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 454 NANO2 0454003.MR Littelfuse 1: $3.06 7,235In Stock	Mfr. Part No. 0454003.MR Mouser Part No 576-0454003.MR	Littelfuse	Surface Mount Fuses 125VAC 3A .034ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	7,235In Stock	Cut Tape $3.06 $2.83 $2.22 $1.96 View Reel $1.52 $1.94 $1.80 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	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 4A .0186ohms 454 NANO2 0454004.MR Littelfuse 1: $3.45 4,972In Stock	Mfr. Part No. 0454004.MR Mouser Part No 576-0454004.MR	Littelfuse	Surface Mount Fuses 125VAC 4A .0186ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	4,972In Stock	Cut Tape $3.45 $2.99 $2.80 $2.30 View Reel $1.52 $2.04 $1.90 $1.69 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	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
Surface Mount Fuses 125VAC 5A .0136ohms 454 NANO2 0454005.MR Littelfuse 1: $2.45 18,132In Stock	Mfr. Part No. 0454005.MR Mouser Part No 576-0454005.MR	Littelfuse	Surface Mount Fuses 125VAC 5A .0136ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	18,132In Stock	Cut Tape $2.45 $2.00 $1.75 $1.48 Reel $1.08 View $1.39 $1.25 $0.997 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	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 72VAC 7A .0105ohms 454 NANO2 0454007.MR Littelfuse 1: $2.92 11,318In Stock	Mfr. Part No. 0454007.MR Mouser Part No 576-0454007.MR	Littelfuse	Surface Mount Fuses 72VAC 7A .0105ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	11,318In Stock	Cut Tape $2.92 $2.69 $2.24 $2.07 View Reel $1.46 $1.86 $1.71 $1.46 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	7 A	72 VAC	75 VDC	50 A, 100 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	10.5 mOhms
Surface Mount Fuses 72VAC 8A .0088ohms 454 NANO2 0454008.MR Littelfuse 1: $3.85 1,529In Stock 2,000Expected 8/3/2027	Mfr. Part No. 0454008.MR Mouser Part No 576-0454008.MR	Littelfuse	Surface Mount Fuses 72VAC 8A .0088ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,529In Stock 2,000Expected 8/3/2027	Cut Tape $3.85 $3.55 $2.95 $2.67 View Reel $1.97 $2.41 $2.24 $1.97 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	8 A	72 VAC	75 VDC	50 A, 100 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	8.8 mOhms
Surface Mount Fuses 125VAC 1.5A .093ohms 454 NANO2 045401.5MR Littelfuse 1: $3.54 5,992In Stock	Mfr. Part No. 045401.5MR Mouser Part No 576-045401.5MR	Littelfuse	Surface Mount Fuses 125VAC 1.5A .093ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	5,992In Stock	Cut Tape $3.54 $3.06 $2.83 $2.28 View Reel $1.52 $2.01 $1.89 $1.66 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	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 72VAC 12A .0061ohms 454 NANO2 0454012.MR Littelfuse 1: $3.85 3,539In Stock	Mfr. Part No. 0454012.MR Mouser Part No 576-0454012.MR	Littelfuse	Surface Mount Fuses 72VAC 12A .0061ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	3,539In Stock	Cut Tape $3.85 $3.55 $2.95 $2.72 View Reel $1.97 $2.45 $2.18 $1.97 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	12 A	72 VAC	75 VDC	50 A, 100 A	6.1 mm x 2.69 mm	- 55 C	+ 125 C	Reel, Cut Tape, MouseReel	6.1 mOhms
Surface Mount Fuses 125VAC 2.5A .045ohms 454 NANO2 045402.5MR Littelfuse 1: $3.55 1,559In Stock 2,000Expected 25/2/2027	Mfr. Part No. 045402.5MR Mouser Part No 576-045402.5MR	Littelfuse	Surface Mount Fuses 125VAC 2.5A .045ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,559In Stock 2,000Expected 25/2/2027	Cut Tape $3.55 $3.06 $2.83 $2.34 View Reel $1.52 $2.12 $1.94 $1.77 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	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 3.5A .0224ohms 454 NANO2 045403.5MR Littelfuse 1: $3.06 1,927In Stock	Mfr. Part No. 045403.5MR Mouser Part No 576-045403.5MR	Littelfuse	Surface Mount Fuses 125VAC 3.5A .0224ohms 454 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	1,927In Stock	Cut Tape $3.06 $2.83 $2.34 $2.16 View Reel $1.52 $1.94 $1.80 $1.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	454	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	3.5 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	22.4 mOhms
Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2 0452.500MRL Littelfuse 1: $3.69 603In Stock 25,000On Order	Mfr. Part No. 0452.500MRL Mouser Part No 576-0452.500MRL	Littelfuse	Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	603In Stock 25,000On Order On Order Ship Dates Mfr. No: 0452.500MRL Stock: 603 Can Dispatch Immediately On Order: 7,000 Expected 15/12/2026 8,000 Expected 30/12/2026 10,000 Expected 6/1/2027 Factory Lead Time: 19 Weeks	Cut Tape $3.69 $3.37 $2.83 $2.53 View Reel $1.88 $2.34 $2.16 $1.88 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452	Surface Mount Ceramic Fuses	Time Delay / Slow Blow	500 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	700 mOhms
Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2 0452.500MRSN Littelfuse 1: $3.79 935In Stock	Mfr. Part No. 0452.500MRSN Mouser Part No 576-0452.500MRSN	Littelfuse	Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	935In Stock	Cut Tape $3.79 $3.13 $2.53 $2.22 Reel $1.66 View $2.09 $1.84 $1.59 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	452										Reel, Cut Tape, MouseReel
Surface Mount Fuses 125VAC 0.75A .36ohms 452 NANO2 0452.750MRL Littelfuse 1: $3.69 52In Stock 10,000On Order	Mfr. Part No. 0452.750MRL Mouser Part No 576-0452.750MRL	Littelfuse	Surface Mount Fuses 125VAC 0.75A .36ohms 452 NANO2 Learn More about Littelfuse 452 454 smt fuses	Datasheet	52In Stock 10,000On Order On Order Ship Dates Mfr. No: 0452.750MRL Stock: 52 Can Dispatch Immediately On Order: 5,000 Expected 7/12/2026 5,000 Expected 16/2/2027 Factory Lead Time: 19 Weeks	Cut Tape $3.69 $3.40 $2.71 $2.41 View Reel $1.88 $2.26 $2.01 $1.88 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

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452/454 Series SMT Fuses

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