272 Series - MICRO™ Very Fast-Acting Subminiature Plug-In Fuse

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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 #Amps (A)VDC (V)VAC (V)Resistance
Interrupting RatingNominal Melting I2T (A2sec)Min Operating Temp (°C)Max Operating Temp (°C)OpeningSizeStockSamplesCompare
0272.0020.002125125220010000A@125VDC8.45E-09-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.0050.00512512528010000A@125VDC7.66E-08-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.0100.011251258010000A@125VDC0.000000462-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.0150.0151251254410000A@125VDC0.00000123-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.0310.0311251251610000A@125VDC0.0000081-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.0500.051251253.5210000A@125VDC0.0000666-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.0620.0621251252.5510000A@125VDC0.000115-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.1000.11251251.3810000A@125VDC0.000385-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.1250.125125125110000A@125VDC0.000691-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.2000.21251252.310000A@125VDC0.00409-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.2500.251251251.7510000A@125VDC0.0064-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.3000.31251251.2510000A@125VDC0.00945-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.4000.41251250.22710000A@125VDC0.0251-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.5000.51251250.16710000A@125VDC0.0716-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.6000.61251250.4310000A@125VDC0.0411-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.7000.71251250.32410000A@125VDC0.071-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.7500.751251250.29310000A@125VDC0.0563-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272.8000.81251250.27110000A@125VDC0.113-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272001.11251250.08810000A@125VDC0.0648-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272002.21251250.042510000A@125VDC0.3-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272003.31251250.027510000A@125VDC0.759-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272004.41251250.020210000A@125VDC1.38-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
0272005.51251250.015610000A@125VDC2.21-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder
027201.51.51251250.057810000A@125VDC0.16-55125Very Fast-Acting (FF)TR3/MICRO (6x8mm)CheckOrder

LittelfusePiedrasNegrasTS16949 2009icon 2020-10-20_IATF 16949_Piedras Negras Mexico

Littelfuse_Mexico_PiedrasNegras_ISO14001icon 2021-02-14_ISO 14001 2015_Piedras Negras Mexico

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