CQ220-8D

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction to CQ220-8D

The CQ220-8D is a type of thyristor, more specifically, a triac for switching applications. A triac is a three terminal switching semiconductor that can be used to control current. Commonly known as a Thyristor, the triac is developed using two thyristors connected in an inverse parallel direction. The advantage of using the CQ220-8D is that it can switch on and off at either polarity of the voltage applied and is suitable for a range of applications.

Application fields of CQ220-8D

The CQ220-8D can be used in many applications that require high-current and high-voltage switching capabilities. Owing to its ability to switch off at either polarity of the applied voltage, the CQ220-8D can be used in many types of AC applications. CQ220-8D can be used in motor speed controls, fans, air conditioners, heating systems, sound systems and other applications requiring AC voltage control.

Additionally, the CQ220-8D can be used for light control in dimmers, luminaires, streetlights, and other lighting systems. Moreover, the CQ220-8D can also be used for power factor correction in power converters and power supplies as well as for heating applications, such as electric ovens, irons and electric stoves.

Working principle of CQ220-8D

The working principle of the CQ220-8D is relatively simple. When an AC voltage is applied across the selection terminals, the thyristors within the CQ220-8D are activated, thereby allowing current to pass through the device. The thyristors then take control of the current and other voltages depending on the polarity of the applied voltage. When the thyristors are activated they latch continuously allowing the current to flow until a gating signal is sent. The gating signal is sent to deactivate the thyristors and hence switch off the current.

It is important to note that the CQ220-8D has relatively low turn-off time and doesn’t have the voltage and current fluctuations associated with SCRs or other thyristors. The turn-off time of the CQ220-8D is essentially the time that elapses between the activation signal and when the thyristors turn off. This ensures that the power remains constant and no extra heat is produced.

Advantages of CQ220-8D

The advantages of using the CQ220-8D for switching applications include its ability to switch on and off at either polarity of the voltage applied, its low turn-off time, and its stability in terms of voltage and current fluctuations. As mentioned above, the CQ220-8D can control the current and other voltages depending on the polarity of the applied voltage. This means that it can switch on and off either positive or negative polarity of the applied voltage. Furthermore, the CQ220-8D has low turn-off time, which ensures that the current and power remain constant and no extra heat is produced.

Finally, the CQ220-8D also provides stability in terms of voltage and current fluctuations. The CQ220-8D has a good temperature stability and an impressive dielectric strength, thus providing protection from voltage overload or current surges. Moreover, it is able to handle large operating temperatures and has a wide range of operating temperature ranges.

Conclusion

The CQ220-8D is a type of thyristor, more specifically, a triac for switching applications. CQ220-8D can be used in many applications that require high-current and high-voltage switching capabilities. The working principle of the CQ220-8D is relatively simple and the advantages of using the CQ220-8D for switching applications include its ability to switch on and off at either polarity of the voltage applied, its low turn-off time, and its stability in terms of voltage and current fluctuations. Therefore, the CQ220-8D is a great choice for use in many AC applications.

The specific data is subject to PDF, and the above content is for reference