Thyristors
A thyristor is an electrotechnical component made up of the terms “thyratron” and “transistor”. It is a semiconductor component that consists of at least four layers of different doping. Thyristors are characterized by their ability to assume a switchable state. At rest, they are non-conductive. The thyristor can be activated by applying a small current to the gate electrode. After activation, the thyristor remains conductive, even if the gate current is removed. To return the thyristor to the non-conductive state, the current must fall below a certain threshold value, the so-called holding current. The manufacturer ERIS offers a wide range of SCRs (silicon-controlled rectifier), TRIACs (triode for alternating current), TSPDs (thyristor overvoltage protection device) and SIDACs (silicon diodes for alternating current).