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Transistors are individual semiconductor devices employed for the switching or amplification of electrical signals. Various transistor types encompass bipolar junction transistors (BJTs), RF transistors, pre-biased BJTs, field-effect transistors (FETs), metal-oxide-semiconductor FETs (MOSFETs), insulated-gate bipolar transistors (IGBTs), junction FETs (JFETs), programmable transistors, and a range of other variations.