Triac Function: A Triac is a bidirectional semiconductor switch, meaning it can control the flow of current in both directions (from MT2 to MT1 and vice versa) in AC circuits.
Voltage and Current Ratings: The BTA16 series includes various models with different voltage and current ratings. For example, the BTA16-600B is a commonly used Triac with a voltage rating of 600 volts and a current rating of 16 amperes.
Applications:
Gate Triggering: Triacs are typically triggered into conduction by applying a gate current. Once triggered, they continue to conduct until the current through them drops below a certain threshold or when the AC voltage crosses zero during the natural zero-crossing of the AC waveform.
Heat Dissipation: When using a Triac, it's important to consider heat dissipation and the need for a heat sink, especially in high-current or high-power applications. Excessive heat can damage the device.