The SM6T68A is a diode transil manufactured by STMicroelectronics, with a 600W power rating, 68V breakdown voltage and 6.5A maximum current, unidirectional voltage blocking capability, and ±5% tolerance. It is provided in an SMB surface mount package, featuring a low stray inductance and low EMI interference. The transil is designed to provide fast and reliable transient overvoltage protection with minimal power losses, making it suitable for overvoltage protection in various applications, including power supply and automotive electronics.