The FGL40N120ANDTU is a Field-Gated Bipolar Transistor from ON Semiconductor. It is an Insulated Gate Bipolar Transistor (IGBT) with a voltage rating of 1200V and current rating of 40A. This IGBT has a power rating of 200 watts and comes in a TO264 package. It is suitable for use in power conversion applications such as motor control, UPS and welding.