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.

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Littelfuse Fuses with Leads - Through Hole 125V 5A PICO II Fast Acting
Datasheet
30In Stock
Min.: 1
Mult.: 1

251 PCB Mount Fuses 5 A 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II - 55 C + 125 C 15.5 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 7A PICO II FA
Datasheet
456In Stock
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 7 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 10.5 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 7A
Datasheet
21In Stock
2.000On Order
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 7 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 10.5 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 7A
Datasheet
813In Stock
1.000Expected 2/23/2026
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 7 A 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A at 125 VAC, 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 7A
Datasheet
2.754In Stock
Min.: 1
Mult.: 1

251 PCB Mount Fuses 7 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 10.5 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 1.5A PICO II FA
Datasheet
94In Stock
200Expected 2/23/2026
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 1.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II 35.999998 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 1.5A
Datasheet
1.248In Stock
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 1.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 35.999998 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 1.5A
Datasheet
1.980In Stock
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 1.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II - 55 C + 125 C 35.999998 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 1.6A
Datasheet
1.007In Stock
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 1.6 A 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II - 55 C + 125 C 70 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 2.5A
Datasheet
784In Stock
1.000Expected 3/20/2026
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 2.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 35.999998 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 2.5A
Datasheet
706In Stock
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 2.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II - 55 C + 125 C 35.999998 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 2.5A
Datasheet
824In Stock
Min.: 1
Mult.: 1
Reel: 5.000
251 PCB Mount Fuses 2.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II - 55 C + 125 C 35.999998 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 3.5A PICO II FA
Datasheet
54In Stock
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 3.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II 24 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 3.5A
Datasheet
570In Stock
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 3.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 24 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 3.5A
Datasheet
1.323In Stock
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 3.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II - 55 C + 125 C 24 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 3.5A
Datasheet
1.001In Stock
1.000Expected 3/27/2026
Min.: 1
Mult.: 1

251 PCB Mount Fuses 3.5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 24 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 1.25A
Datasheet
1.013In Stock
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 1.25 A 125 VAC Fast Blow Leaded Fuses 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II - 55 C + 125 C 100.000001 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 1.25A
Datasheet
267In Stock
Min.: 1
Mult.: 1

251 PCB Mount Fuses 1.25 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 100.000001 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 3.15A PICO II FA
Datasheet
260In Stock
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 3.15 A 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A at 125 VAC, 300 A at 125 VDC Axial PICO II - 55 C + 125 C 36.4 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 3.15A PICO II FA
Datasheet
562In Stock
Min.: 1
Mult.: 1

251 PCB Mount Fuses 3.15 A 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II 36.4 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 3A FM10A Mil
Datasheet
348In Stock
Min.: 1
Mult.: 1
No
253 PCB Mount Fuses 3 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II - 55 C + 125 C 29.5 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .062A
Datasheet
172In Stock
1.000Expected 4/1/2026
Min.: 1
Mult.: 1
Reel: 1.000

251 PCB Mount Fuses 62 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II - 55 C + 125 C 7 Ohms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 125mA PICO II FA
Datasheet
264In Stock
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 125 mA 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II 1.7 Ohms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .2A
Datasheet
814In Stock
Min.: 1
Mult.: 1

251 PCB Mount Fuses 200 mA 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II 895 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .250A PICO II FA
Datasheet
712In Stock
600Expected 2/23/2026
Min.: 1
Mult.: 1
Reel: 100

251 PCB Mount Fuses 250 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 32 VDC Axial PICO II - 55 C + 125 C 665 mOhms Ammo Pack