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: 254
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Voltage Rating DC
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Littelfuse Fuses with Leads - Through Hole 125V .250A PICO II FA
Datasheet
500In Stock
600Expected 11/19/2026
Min.: 1
Mult.: 1
: 100

251 PCB Mount Fuses 250 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II - 55 C + 125 C 665 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .25A
Datasheet
2 107In Stock
2 000Expected 12/31/2026
Min.: 1
Mult.: 1
: 1 000

251 PCB Mount Fuses 250 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A, 300 A Axial PICO II - 55 C + 125 C 665 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V .375A PICO II FA
Datasheet
100In Stock
Min.: 1
Mult.: 1
: 100

251 PCB Mount Fuses 375 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II 395 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .375A
Datasheet
1 257In Stock
Min.: 1
Mult.: 1
: 1 000

251 PCB Mount Fuses 375 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A, 300 A Axial PICO II - 55 C + 125 C 395 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V .500A PICO II FA
Datasheet
42In Stock
Min.: 1
Mult.: 1
: 100

251 PCB Mount Fuses 500 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II - 55 C + 125 C 280 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .5A
Datasheet
2 266In Stock
Min.: 1
Mult.: 1
: 1 000

251 PCB Mount Fuses 500 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II - 55 C + 125 C 280 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .63A
Datasheet
1 562In Stock
Min.: 1
Mult.: 1
: 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
175In Stock
Min.: 1
Mult.: 1
: 1 000

251 PCB Mount Fuses 630 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A, 300 A Axial PICO II 205 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V .63A
Datasheet
802In Stock
Min.: 1
Mult.: 1

251 PCB Mount Fuses 630 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 50 A, 300 A Axial PICO II 205 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .750A PICO II FA
Datasheet
146In Stock
Min.: 1
Mult.: 1
: 100

251 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II 175 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .75A
Datasheet
817In Stock
2 000Expected 1/18/2027
Min.: 1
Mult.: 1

251 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II - 55 C + 125 C 175 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V750mA PICO II FA
Datasheet
828In Stock
Min.: 1
Mult.: 1
: 5 000

251 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II 175 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 1A PICO II FA
Datasheet
290In Stock
Min.: 1
Mult.: 1
: 100

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II 128 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 1A PICO II FA
Datasheet
382In Stock
Min.: 1
Mult.: 1
: 5 000

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II 128 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 1A PICO II Fast Acting
Datasheet
1 013In Stock
Min.: 1
Mult.: 1
: 2 000

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO - 55 C + 125 C 128 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 1A 125V Pico Fast Acting Axial
Datasheet
10In Stock
Min.: 1
Mult.: 1

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses Axial PICO II 128 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 2A PICO II FA
Datasheet
186In Stock
200Expected 1/18/2027
Min.: 1
Mult.: 1
: 100

251 PCB Mount Fuses 2 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II 47.3 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 2A PICO II FA
Datasheet
1 638In Stock
Min.: 1
Mult.: 1
: 5 000

251 PCB Mount Fuses 2 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II 47.3 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 3A PICO II FA
Datasheet
286In Stock
Min.: 1
Mult.: 1
: 100

251 PCB Mount Fuses 3 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II - 55 C + 125 C 29 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 3A
Datasheet
1 140In Stock
16 000On Order
Min.: 1
Mult.: 1
: 1 000

251 PCB Mount Fuses 3 A 125 VAC Fast Blow Leaded Fuses 50 A, 300 A Axial PICO II - 55 C + 125 C 29 mOhms Reel, Cut Tape
Littelfuse Fuses with Leads - Through Hole 125V 4A PICO II FA
Datasheet
228In Stock
Min.: 1
Mult.: 1
: 100

251 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II - 55 C + 125 C 20.4 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 4A
Datasheet
573In Stock
3 000Expected 10/12/2026
Min.: 1
Mult.: 1
: 1 000
251 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II - 55 C + 125 C 20.4 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 4A
Datasheet
2 224In Stock
Min.: 1
Mult.: 1

251 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II - 55 C + 125 C 20.4 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 5A PICO II FA
Datasheet
625In Stock
Min.: 1
Mult.: 1
: 100

251 PCB Mount Fuses 5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II - 55 C + 125 C 15.5 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 5A PICO II FA
Datasheet
2 219In Stock
Min.: 1
Mult.: 1
: 5 000

251 PCB Mount Fuses 5 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A Axial PICO II 15.5 mOhms Ammo Pack