Does the DIAC conduct equally during the positive and negative alternations? - Answers

The DIAC (Diode for Alternating Current) conducts during both positive and negative alternations of an AC signal, but it primarily activates during the positive half-cycle. When the voltage across the DIAC exceeds its breakdown voltage, it conducts, allowing current to flow until the voltage drops below a certain threshold, at which point it turns off. This behavior results in the DIAC primarily being used in applications like triggering circuits and over-voltage protection. Thus, while it can conduct in both alternations, its operation is more prominent in the positive cycle.