452/454 Series SMT Fuses

Littelfuse 452/454 Series SMT Fuses are part of the NANO2® Slo-Blo® series fuse family, which features enhanced inrush withstand characteristics over existing NANO2 Fast-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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Description Datasheet Availability Pricing (NOK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model 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
Littelfuse Surface Mount Fuses 125VAC 0.75A .36ohms 452 NANO2
Datasheet
1 931In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 750 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 360 mOhms
Littelfuse Surface Mount Fuses 72VAC 7A .0105ohms 452 NANO2
Datasheet
5 501In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 7 A 72 VAC 60 VDC 50 A at 72 VAC, 50 A at 60 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 10.5 mOhms
Littelfuse Surface Mount Fuses 125VAC 5A .0136ohms 454 NANO2
Datasheet
8 242In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

454 Surface Mount Ceramic Fuses Time Delay / Slow Blow 5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 13.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2
Datasheet
2 053In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 1.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 93 mOhms
Littelfuse Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2
Datasheet
4 532In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 3 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 34 mOhms
Littelfuse Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2
Datasheet
3 720In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 3.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 22.4 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2
Datasheet
739In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 500 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 700 mOhms
Littelfuse Surface Mount Fuses 125VAC 4A .0186ohms 452 NANO2
Datasheet
962In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000
452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 4 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 18.6 mOhms
Littelfuse Surface Mount Fuses 10A
Datasheet
9 368In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Fuses Time Delay / Slow Blow 10 A 75 VDC 50 A at 72 VAC, 50 A at 60 VDC, 100 A at 75 VDC NANO - 55 C + 125 C Reel, Cut Tape, MouseReel 8 mOhms
Littelfuse Surface Mount Fuses 6.3A
Datasheet
1 240In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Fuses Time Delay / Slow Blow 75 VDC 50 A at 72 VAC, 50 A at 60 VDC, 100 A at 75 VDC NANO - 55 C + 125 C Reel, Cut Tape, MouseReel 12.3 mOhms
Littelfuse Surface Mount Fuses 10A
Datasheet
5 264In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

454 Surface Mount Fuses Time Delay / Slow Blow 10 A 75 VDC 50 A at 72 VAC, 50 A at 60 VDC, 100 A at 75 VDC NANO - 55 C + 125 C Reel, Cut Tape, MouseReel 8 mOhms
Littelfuse Surface Mount Fuses 6.3A
Datasheet
2 533In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

454 Surface Mount Fuses Time Delay / Slow Blow 75 VDC 50 A at 72 VAC, 50 A at 60 VDC, 100 A at 75 VDC NANO - 55 C + 125 C Reel, Cut Tape, MouseReel 12.3 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2
Datasheet
15 380In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 500 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 700 mOhms
Littelfuse Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2
Datasheet
4 363In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 375 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.2 Ohms
Littelfuse Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2
Datasheet
2 875In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 375 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 1.2 Ohms
Littelfuse Surface Mount Fuses 125VAC 0.75A .36ohms 452 NANO2
Datasheet
2 064In Stock
2 000Expected 4/27/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 750 mA 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 360 mOhms
Littelfuse Surface Mount Fuses 125VAC 1A .225ohms 452 NANO2
Datasheet
13 668In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 1 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 225 mOhms
Littelfuse Surface Mount Fuses 125VAC 2A .0625ohms 452 NANO2
Datasheet
6 951In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 2 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 62.5 mOhms
Littelfuse Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2
Datasheet
14 546In Stock
10 400Expected 3/17/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 3 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 34 mOhms
Littelfuse Surface Mount Fuses 125VAC 3A .034ohms 452 NANO2
Datasheet
1 688In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 3 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 34 mOhms
Littelfuse Surface Mount Fuses 125VAC 4A .0186ohms 452 NANO2
Datasheet
22 466In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 4 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 18.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 5A .0136ohms 452 NANO2
Datasheet
19 398In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 13.6 mOhms
Littelfuse Surface Mount Fuses 125VAC 5A .0136ohms 452 NANO2
Datasheet
3 047In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 13.6 mOhms
Littelfuse Surface Mount Fuses 72VAC 7A .0105ohms 452 NANO2
Datasheet
8 225In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 7 A 72 VAC 60 VDC 50 A at 72 VAC, 50 A at 60 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 10.5 mOhms
Littelfuse Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2
Datasheet
Product Comments
2 965In Stock
2 000Expected 5/5/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1 000

452 Surface Mount Ceramic Fuses Time Delay / Slow Blow 1.5 A 125 VAC 125 VDC 50 A at 125 VAC, 50 A at 125 VDC, 300 A at 32 VDC 6.1 mm x 2.69 mm - 55 C + 125 C Reel, Cut Tape, MouseReel 93 mOhms