The document is a device modeling report for an insulated gate bipolar transistor (IGBT) part number 1MBH10D-120 by Fuji Electric, featuring multiple circuit simulation results and test conditions for various characteristics such as transfer, fall time, gate charge, saturation, output, forward current, and reverse recovery. It includes measurement versus simulation comparisons highlighting percentage errors for different parameters. The report concludes with detailed graphs and tables to illustrate the simulation results and their accuracy.