Darlington TransistorsA Darlington transistor is a type of transistor that consists of two bipolar transistors connected together in a specific configuration. This configuration allows the Darlington transistor to have a much higher current gain than a regular bipolar transistor. It is commonly used in applications where a high current gain is needed, such as in amplifiers or switch circuits. The Darlington transistor is named after its inventor, Sidney Darlington, who first described the design in 1953.