Thyristor (SCR) Circuit Symbol - Electronics Schematic Diagram #294055 (License: Personal Use)

This black-and-white schematic symbol represents a silicon-controlled rectifier (SCR), a four-layer semiconductor device used for switching high-power loads. The circle encloses the device, with the anode at the top, cathode at the bottom, and gate terminal entering horizontally on the left; the diagonal arrow indicates current direction from anode to cathode when triggered. The vertical bar near the gate signifies the control electrode’s role in initiating conduction.

Used in electronics textbooks, datasheets, circuit simulators, and engineering documentation to denote SCR components in power electronics schematics; matches user intent for learning, designing, or troubleshooting AC/DC power control systems.