Transistors are a type of semiconductor device that is commonly used as an amplifier or switch. It consists of three layers of a semiconductor material, with each layer having a different electronic charge. By applying a voltage to the transistor, the flow of electrons between the layers can be controlled, allowing the transistor to amplify or switch electrical signals.
Digital transistors are a type of transistor that is specifically designed for use in digital circuits. These transistors are typically used in applications where the transistor needs to switch rapidly between two states, such as in logic gates and other digital circuits. Digital transistors are typically designed to have low "on" resistance, which allows them to switch quickly and with minimal loss of power. Some examples of digital transistors include field-effect transistors (FETs) and bipolar junction transistors (BJTs).