Hall Effect Transistor

A Hall Effect Transistor is a device that uses the Hall effect—where a magnetic field applied to a current-carrying semiconductor creates a voltage perpendicular to the current—to control electrical signals. In this transistor, a small control voltage influences the magnetic field, which in turn adjusts the current flowing through a circuit. This allows for precise, magnetic-based control of electrical signals, making Hall Effect Transistors useful in magnetic sensing and switching applications where contactless control is advantageous.