7771.25 - 777 Series

Series: 777
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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.

The axial lead 3.6mm x 9mm 777 Series fuse from Littelfuse is designed for overcurrent protection in electronic appliance charger applications. The robust design enables the device to withstand up to 24 hits of 7.5kV ringwave surge; it will open safely on a direct short condition without producing body ruptures and soot phenomenon. The enhanced electrical characteristics of the 777 Series make it ideal for use in wall-mounted chargers for smartphones and tablets. This series provides protection from catastrophic failures and safety hazards when experiencing direct shorting on an AC plug.

  • Enhanced interrupting rating
  • Higher surge withstand capability
  • Compact 3.6mm x 9mm footprint saves board space
  • Epoxy coating 
  • Smartphone and tablet wall-mount charger
  • Power supply for consumer electronics

KMARK_SU05024 11003icon KC_SU05024_13001A_7_7_15

Littelfuse_TUV_R50119583icon TUV_R50310556

CCC 2002010207007594 CCC_2020970207000063

METI_NBK020609 JP1021Aicon UL_NBK011117-E10480

7771.25 ECAD Models

curus cUR_JDYX8_E10480_102002249

UR UR_JDYX2_E10480_102002249

pdf icon Fuse 777 Datasheet

Axial Lead and Cartridge Fuses 777 Datasheet...

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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...

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s)
07771.25MRET1P FUSE 250V AXIAL LEAD PB-FREE FUSE 1.25A RoHS No 01/14/2015 PbFree No 01/14/2015 CoC_REACh181_07771.25MRET1P_02-28-2018 Yes
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