| field effect transistor (FET) A with a region of material with two terminals called the "source" and the "drain", and an adjoining region of material between, called the "gate". The voltage between the gate and the controls the current flow between source and drain by depleting the donor region of its charge carriers to greater or lesser extent. There are two kinds of FET's, and . Because no current (except a minute leakage current) flows through the gate, FETs can be used to make circuits with very low power consumption. Contrast . (1995-10-05) |
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