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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Littelfuse Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2
Datasheet
Product Comments
14.753In Stock
21.000Expected 07/09/2026
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
Littelfuse Surface Mount Fuses 125VAC 1.5A .093ohms 452 NANO2
Datasheet
1.068In Stock
5.000Expected 21/09/2026
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
Littelfuse Surface Mount Fuses 72VAC 12A .0061ohms 452 NANO2
Datasheet
7.894In Stock
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
Littelfuse Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2
Datasheet
7.042In Stock
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
Littelfuse Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2
Datasheet
7.958In Stock
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
Littelfuse Surface Mount Fuses 125VAC 3.5A .0224ohms 452 NANO2
Datasheet
3.060In Stock
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
Littelfuse Surface Mount Fuses 125VAC 0.375A 1.2ohms 454 NANO2
Datasheet
1.477In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

454 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
Littelfuse Surface Mount Fuses 125VAC 0.5A .7ohms 454 NANO2
Datasheet
2.113In Stock
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
Littelfuse Surface Mount Fuses 125VAC 1A .225ohms 454 NANO2
Datasheet
12.593In Stock
7.000Expected 12/11/2026
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
Littelfuse Surface Mount Fuses 125VAC 2A .0625ohms 454 NANO2
Datasheet
7.198In Stock
6.000Expected 07/09/2026
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
Littelfuse Surface Mount Fuses 125VAC 3A .034ohms 454 NANO2
Datasheet
6.111In Stock
4.000Expected 09/11/2026
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
Littelfuse Surface Mount Fuses 125VAC 4A .0186ohms 454 NANO2
Datasheet
2.364In Stock
4.000Expected 07/10/2026
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
Littelfuse Surface Mount Fuses 125VAC 5A .0136ohms 454 NANO2
Datasheet
6.509In Stock
6.000Expected 18/08/2026
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
Littelfuse Surface Mount Fuses 72VAC 7A .0105ohms 454 NANO2
Datasheet
7.277In Stock
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
Littelfuse Surface Mount Fuses 125VAC 1.5A .093ohms 454 NANO2
Datasheet
4.354In Stock
3.000Expected 01/02/2027
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
Littelfuse Surface Mount Fuses 72VAC 12A .0061ohms 454 NANO2
Datasheet
2.580In Stock
2.000Expected 25/01/2027
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
Littelfuse Surface Mount Fuses 125VAC 2.5A .045ohms 454 NANO2
Datasheet
2.109In Stock
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
Littelfuse Surface Mount Fuses 125VAC 0.375A 1.2ohms 452 NANO2
Datasheet
27In Stock
2.000Expected 07/10/2026
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
Littelfuse Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2
Datasheet
1.000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

452 Reel, Cut Tape, MouseReel
Littelfuse Surface Mount Fuses 125VAC 0.5A .7ohms 452 NANO2
Datasheet
524In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5.000

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
Littelfuse Surface Mount Fuses 125VAC 1A .225ohms 452 NANO2
Datasheet
956In Stock
1.000Expected 26/11/2026
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
Littelfuse Surface Mount Fuses 125VAC 2A .0625ohms 452 NANO2
Datasheet
317In Stock
2.000Expected 01/02/2027
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
Littelfuse Surface Mount Fuses 125VAC 4A .0186ohms 452 NANO2
Datasheet
5In Stock
1.000Expected 27/08/2026
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
Littelfuse Surface Mount Fuses 72VAC 7A .0105ohms 452 NANO2
Datasheet
475In Stock
1.000Expected 22/09/2026
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
Littelfuse Surface Mount Fuses 72VAC 8A .0088ohms 452 NANO2
Datasheet
9In Stock
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