The TN3015H-6G-TR is a 30 A 600 V D2PAK high temperature SCR (Silicon Controlled Rectifier) produced by STMicroelectronics. It is a three-terminal bidirectional semiconductor device designed to switch power up to 30A at 600 volts in both directions of current flow. It is capable of controlling large amounts of power at high temperatures and can handle a wide range of applications, including motor control, AC or DC power control, EMI filtering, and overcurrent protection. The package type is D2PAK, which means it can be mounted on a single heat-sink to dissipate the heat more effectively. It has fast turn-on/turn-off times, low gate triggering current, and a rugged design which helps to ensure its stability under most operating conditions. The device is also RoHS compliant and can be used in a variety of power control and switching applications in automotive, industrial, and consumer electronic applications.