Unijunction Transistors — UJT and Programmable UJT DevicesUnijunction Transistors (UJTs) are three-terminal semiconductor devices with a single PN junction and two base contacts, designed specifically for relaxation oscillator and thyristor triggering applicat
Field-Effect Transistors — JFET and MOSFET Discrete TransistorsField-Effect Transistors (FETs) are voltage-controlled semiconductor devices in which the conductivity of a channel is modulated by an electric field applied to the gate terminal. Unlike bipolar tr
Bipolar Junction Transistors — NPN and PNP Discrete TransistorsBipolar Junction Transistors (BJTs) are three-terminal current-controlled semiconductor devices that form the foundation of discrete analog design. Used for switching, amplification, and linear reg