Hello friends, I hope you all are doing great. Today, I am going to share the new SCR and TRIAC Library for Proteus . Thyristors are the switches of the AC world: the part inside every light dimmer, the speed control of a drill or a fan, the heater control of a soldering station and the solid-state relay. They behave like no other transistor. A tiny pulse on the gate turns them on, and then they stay on by themselves, gate or no gate, until the current through them dies away. That one property is what makes them so useful on AC, and so puzzling the first time you meet them. Updates SCR and TRIAC Library for Proteus Latest version: V1.0 (November 2026, this tutorial) Other component libraries: C945 Transistor · PC817 Optocoupler · Relay Module · Resistor · 5 mm LED · Designer Colour LED · P ...