Triacs are electronic components that control electrical current in electronic circuits. Triacs consist of three electrodes and a contact point and play an important role in the operation of electronic devices. Triacs, while passing electric current, limit the movement of their electronic cavity and therefore they can control the electric current.

Triacs are available in a variety of shapes and sizes and are made from a variety of materials. Triacs are usually made of metallic materials such as copper and aluminum, and they transmit electric current through these materials.

Triacs are used in a variety of electronic devices and are particularly used in power supplies, signal processing devices, and other devices. Triacs may be more expensive than other electronic components, but they perform better at higher frequencies.