Toshiba has launched a discrete 1,350V IGBT for voltage resonance power converters in home induction heating appliances – tabletop cookers, rice cookers and microwave ovens, for example.

GT20N135SRA has a typical Vce(sat) of 1.60V (20A 25°C ambient) and a diode Vf of 1.75V “As both the IGBT and diode have improved their conduction loss characteristics at 100°C, the device will deliver more efficient operation,” according to Toshiba, which added: “Additionally, an improved maximum junction-to-case thermal resistance of 0.48°C/W allows for easier thermal design with less heatsinking as it represents an approximate 26% reduction from existing products.”

The IGBT can suppress the resonance capacitor short-circuit current generated when the device is started – peak short-circuit current is 129A, “almost a third lower than existing products”, said the company.

Packages in TO-247, the device is able to handle 40A, de-rating to 20A at 100°C.