Si72 MOSFETs Vishay Si72 MOSFETs feature TrenchFET® power MOSFET technology for enhanced performance. The Vishay Si72 MOSFETs are Encased in a thermally enhanced PowerPAK® package. The devices ensure efficient heat dissipation and are PWM optimized, providing precise control for various applications. With 100% Rg and UIS testing, the devices' reliability is thoroughly validated.