The Change Silicon Controlled Rectifier dialog box allows you to select a Silicon Controlled Rectifier in the library to replace the one that was automatically selected by PI Expert.
Use the Fields button to open the Select Fields dialog box and customize the set of the rectifier parameters that are displayed in the Change Silicon Controlled Rectifier dialog box.
To change the rectifier, select the desired rectifier in the list and click OK.
See Component Library, Component Sets and Silicon Controlled Rectifiers Library for more information.