Thyristor Diode SCR 

The Semikron SKKH 570/16E is a powerful Thyristor/Diode Module (also known as an SCR Module) designed for heavy-duty power control applications. It belongs to the SEMIPACK 5 series of industrial power modules.

Main Specifications:

Indicates the internal structure is a Thyristor/Diode Module configuration. This is often an anti-parallel (AC switch) or series (half-controlled rectifier) connection, depending on the internal wiring (for this model, it is typically a dual thyristor-diode in a common housing)