Unijunction Transistor (UJT) | Explained in 5-Mins

The video offers a comprehensive explanation of the Unijunction Transistor (UJT), defining it as a two-layer, three-terminal semiconductor switching device characterized by having only one junction. The video details the constructional details of the UJT, explaining its structure as a lightly doped N-type silicon bar with a diffused P-type material, resulting in the single PN junction and two ohmic base contacts (B1 and B2). Furthermore, the video thoroughly examines the working principle of the UJT, utilizing an equivalent circuit to explain concepts like the intrinsic standoff ratio and the conditions required to reach the peak point voltage, which triggers the device. Watch the video till the end for a complete explanation.