Here you can not only take a look at MOSFET transistor basics, but also purchase different types of transistors in our store. Well, MOSFET is an abbreviation for two English phrases: Metal-Oxide-Semiconductor and Field-Effect-Transistors. In a word, this is a field-effect transistor with an isolated gate. These powerful transistors are well known for their exceptional switching speed with very low control power, which must be applied to the gate. The main reason is that the gate is isolated, therefore power is required only to recharge the gate-source capacitance, and in the static mode, the gate circuit practically does not consume current. In this respect, MOSFETs approximate to the "ideal switch" in their characteristics.

Now let us pay attention to the question: how does a MOSFET transistor work? The essence of operation of MOSFET transistor is the ability to control the current flowing through it with the help of an electric field (voltage). This advantageously differs from bipolar-type transistors, where a large output current is controlled by a small input current. The input resistance of the bipolar transistor is small, and the input resistance of the MOSFET transistor is very large.