777 Axial Leaded Series - Compact 3.6X 9mm Axial leaded 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.

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

Access specifications, certifications, check availability and order parts below

Catalog #VAC (V)Nominal Melting I2T (A2sec)Resistance
BodyOperating TemperaturePartner ECAD ModelsStockSamples
7771.252501.90.07Coated-55° to 125°C7771.25CheckOrder
Catalog # Certificates
Sorting icon
7771.25 CCCiconMETIiconkciconTUVicon
Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
07771.25MRET1P FUSE 250V AXIAL LEAD PB-FREE FUSE 1.25A RoHS No 01/14/2015 PbFree No 01/14/2015 Yes
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