The document is a comprehensive device modeling report for an insulated gate bipolar transistor (IGBT) part number 1MB03D-120, manufactured by Fuji Electric. It includes various circuit simulations and characteristics evaluations, such as transfer characteristics, fall time, gate charge, saturation, output, forward current, and reverse recovery behavior, along with comparison tables of measured versus simulated data. Detailed performance metrics and % error calculations are presented for each characteristic tested.