MOSFET Transistors

Metal–Oxide–Semiconductor Field-Effect Transistor

MOSFETs are transistors that use electronic instead of electromechanical means to control conduction. They are widely used in electronic equipment, including computers, cell phones, and other devices. MOSFETs are available in a variety of sizes and shapes, and can be purchased from many electronic retailers.

The following is a brief description of MOSFETs, their composition, how to use them, and how to buy them.

MOSFETs are made of a metal oxide semiconductor (MOS) material, typically silicon. The MOS material is sandwiched between two conducting electrodes, called the source and the drain. A third electrode, called the gate, is used to control the flow of current between the source and the drain. When a voltage is applied to the gate, it creates an electric field that modulates the conductivity of the MOS material, allowing current to flow between the source and the drain.

MOSFETs can be used as switches, amplifiers, or voltage-controlled resistors. They are often used to control the flow of current in digital circuits, since they can be turned on and off very quickly. MOSFETs are also used in audio amplifiers and power supplies. MOSFETs are available in a variety of sizes and shapes. The size of the MOSFET is typically determined by the width of the MOS material, which is measured in nanometers (nm). The width of the MOS material can range from a few nanometers to several hundred nanometers. MOSFETs are also available in a variety of shapes, including rectangular, circular, and triangular.