The SI4431CDY-T1-E3 with Vishay Semiconductors MOSFET 30V 9.0A 4.2W 32mohm 10V is an advanced N-Channel Metal Oxide Semiconductor Field Effect Transistor (MOSFET) that is ideal for use in high-speed switching applications including analog switching, digital switching circuits, signal clamping, power converters, and other high-performance applications. The device is manufactured by Vishay and has a 30 V drain to source voltage rating, a maximum drain current of 9.0 A, continuous drain current of 4.2 W, and a maximum on-resistance of 32 mOhms at a gate-source voltage of 10 V. Its advanced features include very low gate charge, high switching speed, and low power losses.