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Solid State Discharge Tube (SSD), usually referring to surge protection devices based on semiconductor thyristor structure, such as surge suppression thyristors, is an important transient overvoltage protection device. Its core parameters determine its protection performance and application range. The following is an original summary and analysis of its core parameters, striving for logical clarity:
Solid State Discharge Tube (SSDT) is an overvoltage protection device based on semiconductor technology, which quickly discharges surge current to ground through a controllable voltage triggering mechanism. It is mainly used for transient voltage suppression in communication lines, signal interfaces, and precision electronic equipment. It combines the high energy absorption capacity of gas discharge tubes (GDT) and the fast response characteristics of TVS diodes, becoming an important component in modern circuit protection schemes. The following is a detailed analysis of its technical principles, core features, and applications:
Solid discharge tube is an overvoltage protection device that uses solid materials as the discharge medium, opposite to gas discharge tube (which uses gas as the medium). When overvoltage occurs, it discharges current through the breakdown or conduction of solid materials, thereby protecting subsequent circuits from damage. Solid discharge tubes can be classified according to different standards, and the following are their main categories and characteristics:
