274 Series - FM02 Very Fast-Acting Military Fuses (commercial equivalent - 273 Series)

Roll Over to Zoom
Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Developed originally for the U.S. Space Program, MICRO™ fuse provides reliability in a compact design. The MICRO™ fuse is available in plug–in or radial lead styles and a complete range of ampere ratings from 0.002A to 5A to suit a wide variety of design needs.


  • Military grade available
  • High breaking capacity
  • Clear cover option to view fuse element status
  • Available from very low ampere of 0.002A to 5A
  • Plug-in with short or long leads option


  • Printed circuit boards and similar equipment
  • Electronic components

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VDC (V)VAC (V)Resistance
Interrupting RatingNominal Melting I2T (A2sec)Min Operating Temp (°C)Max Operating Temp (°C)OpeningSizeStockSamplesCompare
0274.0020.002125125220010000A@125VDC8.45E-09-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.0050.00512512528010000A@125VDC7.66E-08-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.0100.011251258010000A@125VDC0.000000462-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.0150.0151251254410000A@125VDC0.00000123-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.0310.0311251251610000A@125VDC0.0000081-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.0620.0621251252.5510000A@125VDC0.000115-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.1000.11251251.3810000A@125VDC0.000385-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.1250.125125125110000A@125VDC0.000691-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.2000.21251252.310000A@125VDC0.00409-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.2500.251251251.7510000A@125VDC0.0064-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.3000.31251251.2510000A@125VDC0.00945-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.4000.41251250.22710000A@125VDC0.0251-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.5000.51251250.16710000A@125VDC0.0716-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.6000.61251250.4310000A@125VDC0.0411-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274.7500.751251250.29310000A@125VDC0.0563-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274001.11251250.08810000A@125VDC0.0648-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274002.21251250.042510000A@125VDC0.3-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274003.31251250.027510000A@125VDC0.759-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274004.41251250.020210000A@125VDC1.38-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0274005.51251250.015610000A@125VDC2.21-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
027401.51.51251250.057810000A@125VDC0.16-5585Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder

Military Components

pdf icon Littelfuse Fuse Accessories Selection Guide

A quick reference guide to selecting holders, blocks and clips for fuse applications...

pdf icon Fuse Selection Guide

A quick reference guide to selecting fuses for electronic applications...

pdf icon Product Selection Guide

Electronics Circuit Protection Product Selection Guide - A guide to selecting Littelfuse circuit protection components for electronic applications...

pdf icon Circuit Protection Technology Application Matrix

Littelfuse is the world leader in the design and manufacturing of fuses for the automotive, industrial, handheld, computer and telecom markets...

pdf icon Electronic Fuse Products Catalog

Littelfuse Electronic Fuse Products Catalog -- Miniature Fuse Products for Overcurrent Protection of Small Electrical and Electrical Applications...