STMicroelectronics, a world leader in power applications, has come out with a new series of power transistors which would reduce the environmental impact of daily-use equipments such as home appliances, HVAC systems, and industrial machines. The STGW30N120KD and the STGW40N120KD are Insulated Gate Bipolar Transistors (IGBTs) that reduce low energy loss when conducting as well as while switching.
These IGBTs achieve power savings using ST’s PowerMESH process, and deliver greater all-round energy efficiency. In addition, the IGBTs’ compact industry-standard TO-247 package saves component count by also integrating the ultra-fast freewheeling diode required by most circuits.
The new series is rated for 1200V operation, which allows use at higher AC line voltages such as 440V or 480V. They are also capable of surviving short circuits lasting up to 10 microseconds, making them resistant to common causes of motor-controller failures, such as an error in the gate drive signal, shorting at grounding, and breakdown of motor phase-to-phase insulation.
