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
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Description Datasheet Availability Pricing (CAD) 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
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Fuse Size / Group
Minimum Operating Temperature
Maximum Operating Temperature
Resistance
Packaging
Littelfuse Fuses with Leads - Through Hole 125V .062A FM Fast Acting
Datasheet
60Expected 2026-03-24
Min.: 1
Mult.: 1
No
253 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 Bulk
Littelfuse Fuses with Leads - Through Hole 125V .500A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

251 PCB Mount Fuses 500 mA 125 VAC Fast Blow Leaded Fuses Axial PICO II 280.000001 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .500A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

251 PCB Mount Fuses 500 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II 280.000001 mOhms Reel
Littelfuse Fuses with Leads - Through Hole 125V .500A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

251 PCB Mount Fuses 500 mA 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II 280.000001 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .500A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

251 PCB Mount Fuses 500 mA 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II - 55 C + 125 C 280.000001 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V .630A PICO II FA
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

251 PCB Mount Fuses 630 mA 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II 205 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .630A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

251 PCB Mount Fuses 630 mA 125 VAC Fast Blow Leaded Fuses Axial PICO II 205 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .750A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

251 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses Axial PICO II 174.999997 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V .750A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

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 Reel
Littelfuse Fuses with Leads - Through Hole 125V .750A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

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 .750A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

251 PCB Mount Fuses 750 mA 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II - 55 C + 125 C 174.999997 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 1A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses Axial PICO II 128.000006 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 1A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

251 PCB Mount Fuses 1 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II 128.000006 mOhms Reel
Littelfuse Fuses with Leads - Through Hole 125V 2A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

251 PCB Mount Fuses 2 A 125 VAC Fast Blow Leaded Fuses Axial PICO II 47.3 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 2A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

251 PCB Mount Fuses 2 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II 47.3 mOhms Reel
Littelfuse Fuses with Leads - Through Hole 125V 2A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

251 PCB Mount Fuses 2 A 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II - 55 C + 125 C 47.3 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 3A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

251 PCB Mount Fuses 3 A 125 VAC Fast Blow Leaded Fuses Axial PICO II 28.999999 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 3A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

251 PCB Mount Fuses 3 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II 28.999999 mOhms Reel
Littelfuse Fuses with Leads - Through Hole 125V 3A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

251 PCB Mount Fuses 3 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II 28.999999 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 3A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

251 PCB Mount Fuses 3 A 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II - 55 C + 125 C 28.999999 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 4A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

251 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses Axial PICO II 20.400001 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 4A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

251 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II 20.400001 mOhms Reel
Littelfuse Fuses with Leads - Through Hole 125V 4A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2,000
Mult.: 2,000
Reel: 2,000

251 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses 125 VDC 300 A at 125 VDC Axial PICO II 20.400001 mOhms Ammo Pack
Littelfuse Fuses with Leads - Through Hole 125V 4A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

251 PCB Mount Fuses 4 A 125 VAC Fast Blow Leaded Fuses 125 VDC Axial PICO II - 55 C + 125 C 20.400001 mOhms Bulk
Littelfuse Fuses with Leads - Through Hole 125V 5A PICO II Fast Acting
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

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