The STGWA40M120DF3 is an insulated gate bipolar transistor (IGBT) with an operating voltage of 1200V, a maximum gate current of 140mA, and a maximum collector current of 40A. It is manufactured by STMicroelectronics in a KU68R package, and is suitable for high-temperature switching applications, such as motor and lighting control. This transistor is designed to provide high efficiency, low switch-on losses, long service life, and easy handling.