The full form of MOSFET is ‘ Metal-Oxide Semiconductor Field-Effect Transistor ’. Sometimes, it is also referred to as ‘Metal-Oxide Silicon Field-Effect Transistor’. MOSFET is usually defined as a transistor used primarily to switch electronic signals. They are widely used in the field of power electronics and are best known for handling significant power levels. Learn all about MOSFET — full form , symbol, diagram, working, types, characteristics, applications, and differences from BJT, JFET, and IGBT in simple words. Learn everything about MOSFETs – full form , symbol, construction, working principle, and real-life applications. Understand how MOSFETs function and why they are widely used in modern electronics. MOSFET is one of the most important and widely used transistors. MOSFET full form Metal Oxide Semiconductor Field Effect Transistor. There are various types of Field Effect Transistors, and MOSFET is one of them. MOSFET is a very important and useful device due to its ultra-fast switching characteristics and high efficiency.