CTA12-1200CW

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Thyristors - TRIACs have found increased application in modern circuitry and are used to perform AC power control. CTA12-1200CW is a cost-effective, lightweight thyristor module developed by C&S which is widely used for the purpose of controlling AC voltage. This article provides information about its application field and working principle.

Overview of CTA12-1200CW

CTA12-1200CW is a three-phase, 1200 Volt thyristor module with a rated current of 10 Amps and a gate trigger current of 18 mA. It is composed of three SCR (silicon-controlled rectifier) elements placed in parallel in a single case. The overall dimension of this module is 79mm* 79mm* 63mm and the average on-state voltage drop is 1.8V. The typical turn-on delay time of this module is 2 microseconds while the typical turn-off delay time is 4 microseconds. This thyristor module can be actively controlled with a standard a gate driver circuit, making it suitable for use in AC power control applications.

Application Field of CTA12-1200CW

CTA12-1200CW is ideal for a range of AC power control applications such as phase control, motor speed control, light dimming, and furnace control. It is used in many industrial applications, including:

• Automatic welding machine
• Inverters
• Industrial robots
• AC drives
• X-ray machines

This thyristor module is also used in consumer appliances such as air conditioners, electric ovens, stoves, and washing machines.

Working Principle of CTA12-1200CW

CTA12-1200CW works on the principle of a thyristor, a four-layer semiconductor device. As the name suggests, the basic element of a thyristor is the combination of three PN junction diodes in series, which makes it a four layer device. The thyristor is also known as a bidirectional device, meaning it can conduct current in both directions, thus it is suitable for AC power control applications. The three-phase, 1200 Volt thyristor module is composed of three SCRs in parallel. Each individual SCR has a rated current of 10 Amps. When the gate voltage is applied, each SCR element is triggered, allowing current to flow.

The CTA12-1200CW thyristor module is designed with a substantially low gate trigger current of only 18 mA. This feature makes it suitable for applications where higher gate drive current is not available. The on-state voltage drop of this thyristor module is 1.8V, which is low compared to other similar modules. This feature increases the efficiency of the load, making it suitable for high power applications in the industrial and consumer markets.

CTA12-1200CW is a cost-effective, lightweight thyristor module, which is widely used for the purpose of controlling AC voltage. It is ideal for a range of applications such as motor speed control, light dimming, furnace control, and more. The three-phase 1200 Volt module is composed of three SCRs in parallel, each with a rated current of 10 Amps and a gate trigger current of 18 mA. This module is designed with a low on-state voltage drop of 1.8V, making it highly efficient and suitable for high power applications in both industrial and consumer markets.

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