CQ202-4M-2

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Thyristors - TRIACs are used as an integral part of many light-duty electrical circuits, including those found in household appliances, environmental controls, motion sensors, and other applications. One of the most commonly used devices in this category is the CQ202-4M-2. This device is a bidirectional, three-terminal, half-controlled semiconductor device capable of providing superior control of industrial and residential AC circuits.

On one terminal, the CQ202-4M-2 electro-luminescent device has a base terminal, which accepts AC input voltage. The emitter and collector terminals are connected directly to the AC bus. This design allows the device to be able to control the flow of AC current in both directions, as well as shut off current completely. This makes the device ideal for use in applications where a high degree of control over AC current is desired.

The CQ202-4M-2 works on the principle of "load commutating thyristor". This concept involves the switching of the current between either of the two AC terminals, depending on what phase the AC current is in. If the phase of the current is such that it is flowing in the same direction as the current flowing through the device\'s base terminal, the device will switch off, allowing the current to flow in the opposite direction. If, however, the current phase has changed to the opposite direction as its base terminal, the device will turn on, allowing the current to flow in the direction of its base terminal.

The CQ202-4M-2 has some unique features that make it distinctively suitable for use in many industries. Firstly, the device can handle a maximum of 400 VAC, at a rated power of up to 2.5 kW. Secondly, the device has a maximum on-state current rating of 6 Amps, and a maximum operating temperature of 150 degrees Celsius. Thirdly, the device has a high surge capability of up to 10,000 Amps. This ensures that the CQ202-4M-2 can handle sudden power fluctuations in its environment without malfunctions.

The CQ202-4M-2 is used in a wide range of applications, including motor control, light dimming, heating/cooling of air, and industrial automation. In motor control applications, the device is used to control the speed of individual motors with precision. In light dimming applications, the device is used to provide a smooth and consistent level of light, while in heating/cooling applications, it is used to control the flow of heated or cooled air. Finally, in industrial automation, the device is used to facilitate automation processes, such as assembly line functions and machine operation.

Overall, the CQ202-4M-2 is an important device for many household and industrial applications. It is capable of providing precise control of AC circuits, along with a high surge capability. Additionally, the device is highly suitable for motor control, light dimming, heating/cooling of air, and industrial automation applications.

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