251/253 Series PICO® II Very Fast-Acting Fuses

Littelfuse 251/253 Series PICO® II Very Fast-Acting Fuses are designed to meet an extensive array of performance characteristics in a space-saving subminiature package. These fast-acting fuses operate at -55°C to 125°C temperature range and at 0.062A to 15A current rating range. The 251/253 series fuses are small and feature low-temperature re-rating. These fuses are ideal for flat–panel display TVs, LCD monitors, LCD backlight inverters, office machines, power supplies, audio/video systems, lighting systems, and medical equipment.

Results: 255
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Current Rating
Voltage Rating AC
Fuse Type
Body Style
Voltage Rating DC
Interrupt Rating
Termination Style
Fuse Size/Group
Minimum Operating Temperature
Maximum Operating Temperature
Resistance
Packaging
Littelfuse Fuses with Leads - Through Hole 125V 1A
Datasheet
7,098In Stock
Min.: 1
Mult.: 1
Reel: 1,000

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II - 55 C + 125 C 128.000006 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 1A
Datasheet
19,071In Stock
8,000Expected 24/04/2026
Min.: 1
Mult.: 1

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 128.000006 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 1A
Datasheet
14,965In Stock
Min.: 1
Mult.: 1
Reel: 5,000

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II - 55 C + 125 C 128.000006 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 5A
Datasheet
4,173In Stock
Min.: 1
Mult.: 1
Reel: 5,000

251 PCB Mount Fuses 5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II - 55 C + 125 C 15.5 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 7A
Datasheet
3,504In Stock
5,000Expected 14/04/2026
Min.: 1
Mult.: 1
Reel: 5,000

251 PCB Mount Fuses 7 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II - 55 C + 125 C 10.5 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 10A
Datasheet
4,644In Stock
11,900On Order
Min.: 1
Mult.: 1

251 PCB Mount Fuses 10 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 7.05 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 15A 32V
Datasheet
5,585In Stock
Min.: 1
Mult.: 1
Reel: 1,000

251 PCB Mount Fuses 15 A 32 VAC Fast Blow Leaded Fuses 32 VDC 50 A at 32 VAC, 300 A at 32 VDC Axial PICO II - 55 C + 125 C 35.999998 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 32V 15A
Datasheet
3,767In Stock
5,000Expected 09/07/2026
Min.: 1
Mult.: 1

251 PCB Mount Fuses 15 A 32 VAC Fast Blow Leaded Fuses 32 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 35.999998 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 32V 15A
Datasheet
3,425In Stock
Min.: 1
Mult.: 1
Reel: 5,000

251 PCB Mount Fuses 15 A 32 VAC Fast Blow Leaded Fuses 32 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 35.999998 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V .500A PICO II FA
Datasheet
147In Stock
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 500 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 280.000001 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .63A
Datasheet
1,612In Stock
Min.: 1
Mult.: 1
Reel: 1,000

251 PCB Mount Fuses 630 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II 205 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .63A
Datasheet
180In Stock
Min.: 1
Mult.: 1
Reel: 1,000

251 PCB Mount Fuses 630 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II 205 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V .63A
Datasheet
855In Stock
Min.: 1
Mult.: 1

251 PCB Mount Fuses 630 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II 205 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .750A PICO II FA
Datasheet
151In Stock
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II 174.999997 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .75A
Datasheet
436In Stock
4,000Expected 30/04/2026
Min.: 1
Mult.: 1
Reel: 1,000
251 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 174.999997 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V750mA PICO II FA
Datasheet
851In Stock
Min.: 1
Mult.: 1
Reel: 5,000

251 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II 174.999997 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 1A PICO II FA
Datasheet
306In Stock
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II 128.000006 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 1A PICO II Fast Acting
Datasheet
1,362In Stock
Min.: 1
Mult.: 1
Reel: 2,000

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO - 55 C + 125 C 128.000006 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 2A PICO II FA
Datasheet
321In Stock
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 2 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II 47.3 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 2A
Datasheet
28In Stock
4,000On Order
Min.: 1
Mult.: 1
Reel: 1,000
251 PCB Mount Fuses 2 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 47.3 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 3A PICO II FA
Datasheet
302In Stock
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 3 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 28.999999 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 3A
Datasheet
1,790In Stock
Min.: 1
Mult.: 1
Reel: 1,000

251 PCB Mount Fuses 3 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 28.999999 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 4A PICO II FA
Datasheet
388In Stock
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 20.400001 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 4A
Datasheet
166In Stock
2,000Expected 20/03/2026
Min.: 1
Mult.: 1
Reel: 1,000

251 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II - 55 C + 125 C 20.400001 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 5A PICO II FA
Datasheet
387In Stock
300Expected 23/02/2026
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 15.5 mOhms Ammo Pack