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Littelfuse

Littelfuse 025103.5NAT1L 3.5A 125V PICO II Very Fast-Acting Fuse

Part Number: 025103.5NAT1L

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Specified as 025103.5NAT1L, this 3.5A Littelfuse device is intended for very fast-acting secondary protection in space-constrained electronic equipment, supplied as 5000 pcs, ammo pack, T1 lead length 52.4 mm, RoHS + halogen-free option.

Rated Current3.5A
Rated Voltage125 V AC/DC
Breaking Capacity300 A DC / 50 A AC
PackageSubminiature Axial

The Littelfuse 251 Series part 025103.5NAT1L provides a 3.5A rating for very fast-acting secondary protection in space-constrained electronic equipment. PICO® II subminiature fuse, 125 V maximum; nominal melting I²t 1.58 A²s; operating temperature -55°C to +125°C. This listing retains the manufacturer-specific configuration: 5000 pcs, ammo pack, T1 lead length 52.4 mm, RoHS + halogen-free option. Confirm application conditions and current manufacturer documentation before final selection.

Technical Specifications

Part Number
025103.5NAT1L
Manufacturer Part Number
025103.5NAT1L
Series
251 Series
Fuse Type
Subminiature Fuse
Current Rating
3.5A
Voltage Rating
125 V AC/DC
AC / DC
AC/DC
Breaking Capacity
300 A DC / 50 A AC
I²t
1.58 A²s
Pre-arcing I²t
1.58
Operating Temperature
-55°C to +125°C
Package / Dimensions
Subminiature Axial
Mounting
PCB Axial Lead · PCB Through-Hole
Application
Audio/video · Displays · Lighting · Medical and office equipment · Power supplies
Standard
UL/CSA supplemental fuse standards by rating
Terminal Type
Tin-coated copper wire leads
Fuse Speed
Very Fast Acting
Approvals
Agency approvals vary by rating · CSA · UL
Certifications
UL Recognized; CSA; PSE and other approvals by rating

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