The Thyristor

Thyristors come in many designs. However, thyristors are not produced in the same quantities, such as transistors or diodes. Therefore, especially with small-signal thyristors there exist many exotic thyristors that may be difficult to obtain.

In the experiments, therefore, you use two different thyristors which seem oversized, but generally are readily available.

Roughly speaking, thyristors come in two versions...

• p-gate thyristor and
• n-gate thyristor

This term is derived from the internal structure. In the course of the experiments you come back to this.

In addition, there exists a combination of a p- and n-gate thyristor.

Various thyristors for different applications. (Enlarge)

Circuit symbol p-gate thyristor.

Circuit symbol n-gate thyristor.

C 106 Thyristor

A C-106D thyristor and its connectors. (Enlarge)

The C-106 is a p-gate thyristor with connectors. The connectors are denominated cathode (C), anode (A) and gate (G). In the picture, the C 106 thyristor is shown with the assignment of the connectors.