Programmable Unijunction Transistors (PUTs) are versatile components used in timing circuits, pulse generation, and triggering applications. Unlike traditional unijunction transistors, PUTs offer the ability to program the intrinsic standoff ratio, providing greater flexibility in circuit design and reducing the need for additional components.

Manufacturers such as Microsemi, Littelfuse, and ON Semiconductor supply high-quality PUTs that ensure precision and stability in various electronic applications. The programmable nature of these transistors makes them highly valuable in custom circuit designs and complex electronic systems, enhancing the overall functionality and performance.