Single Channel E-fuses

Single-channel eFuses protect a variety of applications, ranging from simple power adapters to complex industrial control systems and high-end enterprise computing or data storage platforms. ST’s single-channel electronic fuses deliver flexible and fast-acting protection for a wide range of applications.

STEF12H60M efuse single channel product


The high-power portfolio includes fully configurable eFuses for applications with a wide operating voltage range (such as the industrial 12, 24, and 36V buses). We also offer high-current eFuses and current-limited load switches designed to protect add-in cards and the main bus in server and network equipment.

  • Hard disk drives
  • Solid state drives
  • Factory automation
  • Alarm systems
  • Smart grid
  • Server Hot-swap protection
  • Add-in cards, GPU
  • Routers, Switches

Product types

ST’s offer includes low-power devices tailored for a defined voltage rail (3.3V, 5V or 12V) and dual-mode devices operating either in a 3.3V or 5V domain. Protection functions of the single-channel eFuses include fixed or adjustable overcurrent protection, soft-start, undervoltage lockout, overvoltage clamp and thermal shutdown. Latch-off or auto-retry versions are available on specific part numbers.

Single-channel eFuses are available in power efficient DFN/QFN, standard TSOT23 / TSSOP, and tiny wafer level CSP packages.

Discover our portfolio

With its eFuse portfolio, STMicroelectronics offers a wide range of single-channel devices, answering the need for advanced protection in overcurrent, overvoltage, or overload conditions.

Efuse single channel product portfolio stef12 stef12s stef05 stef05s stef05l stef033 stef4s stelpd01 stef01 stel12h24 stef12h60m


  • Quick and intelligent response to faults
  • Reduced maintenance
  • Hot-plug/hot-swap capability
  • Flexible application design