The IRG4BC30UD is an Insulated Gate Bipolar Transistor with Ultrafast Soft Recovery Diode. Its is designed to be a "drop-in" replacement for equivalent industry-standard Generation 3 IR IGBTs. It is optimized for specific application conditions. The generation 4 IGBTs offers the highest efficiencies available. The?HEXFRED diodes optimized for performance with IGBTs and the minimized recovery characteristics require less/no snubbing.