The STGW30N120KD and the STGW40N120KD, from STMicroelectronics, are Insulated Gate Bipolar Transistors (IGBTs). The STGW30N120KD and the STGW40N120KD have low energy loss when conductin (like an ordinary IGBT) and also reduce losses while switching. The new series is rated for 1200V operation, which allows use at higher AC line voltages such as 440V or 480V. The STGW30N120KD and STGW40N120KD are for applications up to 30A and 40A, respectively. They are in full production and are available, respectively, at $2.50 and $2.80 each, in quantities of 5000 pieces.