What the 7.6–18 V input and 3.6 A output mean for your power path
The STEF12EPUR is an electronic fuse from STMicroelectronics that protects a downstream load from overcurrent and overvoltage faults. Its 7.6 V to 18 V input range covers common 12 V and 15 V rails, and the 3.6 A continuous output suits point-of-load protection for peripherals, sensors, or auxiliary supplies in industrial and telecom gear. The -40 °C to 125 °C junction temperature rating means this part handles the full industrial temperature envelope, including hot enclosures or outdoor equipment without derating concerns.
Package and board-fit: 10-DFN with exposed pad
Housed in a 10-VFDFN exposed-pad package (3x3 mm body per the supplier device package), the STEF12EPUR requires a thermal land on the PCB to dissipate heat from the internal power FET.