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0451.250MRL AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

0451.250MRL product

0451.250MRL

Fuses

NANO2Surface MountFast-ActingLittelfuse

The 0451.250MRL is a 0.25A, 125V very fast-acting NANO2 surface mount fuse from Littelfuse, ideal for secondary side over-current protection in compact electronics.

Best for

  • Notebook PCs
  • LCD monitors
  • Power supplies
  • Telecom systems

Avoid if

  • Applications requiring slow-blow characteristics or high-voltage protection above 125V.

Check before use

  • Verify the operating temperature range (-55°C to 125°C) and the specific inrush current profile of your load.

Key specifications

Current Rating
0.25 A
Voltage Rating
125 V
Response Time
Very Fast-Acting

Compliance & Environment

RoHS
ROHS3 Compliant
REACH
-
MSL
Level 1
ECCN
-
HTSUS
-

Application

Consumer ElectronicsPower Supplies

Datasheet

0451.250MRL-Littelfuse-datasheet-110733732.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for 0451.250MRL: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

6
PartDetailsMatch
045306.3MRManufacturer

Has caveats

Has caveats

Design and risk insights

Questions & answers

It is a 0.25A, 125V very fast-acting surface mount fuse in the NANO2 series, designed for secondary side circuit protection.