Junction Field Effect Transistor (JFET)

A Junction Field Effect Transistor (JFET) is a type of transistor used to control electrical current. It has three parts: the source, drain, and gate. The JFET operates by applying a voltage to the gate, which influences the flow of current between the source and drain. Unlike some other transistors, in a JFET, the current flows through a semiconductor channel, and the gate voltage adjusts the width of this channel, controlling the amount of current passing through. This makes JFETs useful for amplifying signals and switching in electronic circuits, with high efficiency and low noise.