CQ202-4BS

Thyristors - TRIACs

A TRIAC is a type of thyristor, which is a solid-state semiconductor device with adjustable gating. It is a three-terminal AC switch, similar to SCR but with much greater current handling capabilities. The TRIAC is a general purpose AC switch, offering superior performance over conventional SCRs due to its larger current capability and its adjustable gating characteristics. TRIACs are widely used for controlling the switching of AC power for applications such as dimmers, motor controllers, and other electrical control systems.

CQ202-4BS Application Field and Working Principle

The CQ202-4BS is a TRIAC switch, used mainly in the field of industrial automation. The CQ202-4BS is a three-terminal AC switch and can be used to control the switching of AC power for applications such as motor controllers, dimmers, lighting systems and other AC control systems. The CQ202-4BS has adjustable gating characteristics, allowing the user to control the switching phase angle of the AC power.

The CQ202-4BS has a wide range of operating voltages from 6V to 800V at 2.5kV and up to 2A at 75V. It is also capable of being triggered by a variety of currents and voltage levels, making it an ideal choice for a range of AC switching applications.

The CQ202-4BS works by providing a current path to the correct terminal of an AC switch. When the gate current, IGT, is exceeded, the TRIAC will be triggered to switch and the voltage on the load will switch in phase with the supply voltage. The switching phase angle is controlled by the gate current, IGT and the voltage on the load respectively. The CQ202-4BS also has the advantage of being able to be triggered by either current or voltage levels.

The CQ202-4BS is also equipped with a number of protection features such as overvoltage and overcurrent protection, ensuring reliable operation in a variety of demanding applications. It also offers a wide temperature range, allowing it to be used in a variety of applications and in extreme temperatures.

The CQ202-4BS is an efficient and reliable switch, offering superior performance for a wide range of AC switching applications. Its adjustable gating characteristics, protection features and wide temperature range make it an ideal choice for many industrial automation and AC control applications.