The VS-VSKT91/12 is an ADD-A-PAK generation VII Power Module/Standard Thyristor intended for general purpose high voltage applications such as high voltage regulated power supplies, lighting circuits, temperature and motor speed control circuits, UPS and battery charger. The ADD-A-PAK Generation VII, new generation of ADD-A-PAK module, combines the excellent thermal performances obtained by the usage of exposed direct bonded copper substrate, with advanced compact simple package solution and simplified internal structure with minimized number of interfaces. Excellent thermal performances obtained by the usage of exposed direct bonded copper substrate.