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Littelfuse

Littelfuse 0251.125MRT1L 0.125A 125V PICO II Very Fast-Acting Fuse

Part Number: 0251.125MRT1L

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Littelfuse 0251.125MRT1L combines a 0.125A rating with very fast-acting secondary protection in space-constrained electronic equipment; the listed ordering configuration is 1000 pcs, tape and reel, T1 lead length 52.4 mm, RoHS + halogen-free option.

Rated Current0.125A
Rated Voltage125 V AC/DC
Breaking Capacity300 A DC / 50 A AC
PackageSubminiature Axial

As a 251 Series ordering code, 0251.125MRT1L pairs a 0.125A rating with very fast-acting secondary protection in space-constrained electronic equipment. PICO® II subminiature fuse, 125 V maximum; nominal melting I²t 0.00174 A²s; operating temperature -55°C to +125°C. The supplied configuration is 1000 pcs, tape and reel, T1 lead length 52.4 mm, RoHS + halogen-free option. Validate the exact part number and operating conditions with current Littelfuse documentation.

Technical Specifications

Part Number
0251.125MRT1L
Manufacturer Part Number
0251.125MRT1L
Series
251 Series
Fuse Type
Subminiature Fuse
Current Rating
0.125A
Voltage Rating
125 V AC/DC
AC / DC
AC/DC
Breaking Capacity
300 A DC / 50 A AC
I²t
0.00174 A²s
Pre-arcing I²t
0.00174
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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