Over the last several decades, Power MOSFET Transistors have been known as the true power semiconductor work-horse in high-frequency switch-mode power supplies (SPMS). Power MOSFETs offer several distinct advantages, including super-fast switching (commutation) speeds, very low switching losses and, hence, excellent efficiency. Additionally, Power MOSFET Transistors have very high input resistance (on the order of 10¹² ohms) and are true voltage-controlled (zero bias current) devices.

Richardson RFPD carries both vertical and lateral MOSFETs. Typical vertical MOSFET applications include SMPS (both for hard switching above 200 kHz and for zero voltage switching – ZVS – below 1000 watts), power factor correction, solar power inverters, arc welding, plasma cutters, AM transmitters, Class D amplifiers, induction heating, and battery charging circuits. Lateral MOSFET applications include variable power resistors, soft-start circuits, high-current/high-voltage switching, linear amplifiers, high-current constant current sources, and DC dynamic loads.

Specific attributes which are important in selecting the right Power MOSFET Transistor for your application include On-State Resistance (mΩ), Voltage Rating (V), Current Rating (A), and Package Type. Richardson RFPD’ large selection of Power MOSFET Transistors include recent technological advancements such as quiet switching, ultra-low equivalent gate resistance (EGR), reduced EMI, low gate charge MOSFETs, and higher avalanche energy rated MOSFETs.