What Does UJT Stand For?

UJT stands for Unijunction Transistor

The Unijunction Transistor (UJT) is a three-terminal semiconductor device primarily used in triggering and switching applications. It features a single junction between its two regions, enabling it to operate as a relaxation oscillator and in timing circuits. The UJT is characterized by its simple construction and ability to provide a low-cost solution for generating control signals in various electronic circuits, including phase control and sawtooth waveform generation. Its unique operational properties make it valuable in applications such as motor speed control and pulse generation.