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

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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 #VDC (V)VAC (V)Resistance
Nominal Melting I2T (A2sec)Min Operating Temp (°C)Max Operating Temp (°C)OpeningPartner ECAD ModelsStockSamplesCompare
0274.00212512522008.45E-09-5585Very Fast-Acting (FF)274_002CheckOrder
0274.0051251252807.66E-08-5585Very Fast-Acting (FF)274_005CheckOrder
0274.010125125800.000000462-5585Very Fast-Acting (FF)274_01CheckOrder
0274.015125125440.00000123-5585Very Fast-Acting (FF)274_015CheckOrder
0274.031125125160.0000081-5585Very Fast-Acting (FF)274_031CheckOrder
0274.0621251252.550.000115-5585Very Fast-Acting (FF)274_062CheckOrder
0274.1001251251.380.000385-5585Very Fast-Acting (FF)274_1CheckOrder
0274.12512512510.000691-5585Very Fast-Acting (FF)274_125CheckOrder
0274.2001251252.30.00409-5585Very Fast-Acting (FF)274_2CheckOrder
0274.2501251251.750.0064-5585Very Fast-Acting (FF)274_25CheckOrder
0274.3001251251.250.00945-5585Very Fast-Acting (FF)274_3CheckOrder
0274.4001251250.2270.0251-5585Very Fast-Acting (FF)274_4CheckOrder
0274.5001251250.1670.0716-5585Very Fast-Acting (FF)274_5CheckOrder
0274.6001251250.430.0411-5585Very Fast-Acting (FF)274_6CheckOrder
0274.7501251250.2930.0563-5585Very Fast-Acting (FF)274_75CheckOrder
0274001.1251250.0880.0648-5585Very Fast-Acting (FF)274001CheckOrder
0274002.1251250.04250.3-5585Very Fast-Acting (FF)274002CheckOrder
0274003.1251250.02750.759-5585Very Fast-Acting (FF)274003CheckOrder
0274004.1251250.02021.38-5585Very Fast-Acting (FF)274004CheckOrder
0274005.1251250.01562.21-5585Very Fast-Acting (FF)274005CheckOrder
027401.51251250.05780.16-5585Very Fast-Acting (FF)27401_5CheckOrder
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
0274.002V FUSE 125V FM02A MIL MICRO FUSE .002A RoHS No 02/27/2002 PbFree No 02/27/2002 No
0274002.V FUSE 125V FM02A MIL MICRO FUSE 2A RoHS No 02/27/2002 PbFree No 02/27/2002 CoC_RoHS10_0274002.V_11-16-2018 REACH191_Declaration_0274002.V_11-16-2018 No
Does not Contain
0274.005V FUSE 125V FM02A MIL MICRO FUSE .005A RoHS No 02/27/2002 PbFree No 02/27/2002 No
0274005.V FUSE 125V FM02A MIL MICRO FUSE 5A RoHS No 02/27/2002 PbFree No 02/27/2002 CoC_RoHS10_0274005.V_10-05-2018 REACH191_Declaration_0274005.V_11-23-2018 No
Does not Contain
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