CQ92-2N

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Thyristors are solid-state semiconductor devices that are commonly used as electrical switches in power electronics, and one type of thyristor is called a TRIAC (or Triode for Alternating Currents). The CQ92-2N thyristor is a type of TRIAC that has a high current carrying capacity and a low turn-off voltage.

The CQ92-2N TRIAC is a four-layer semiconductor device that is produced using an epitaxial planar technology. It consists of a main body (the PN junction form) and two anode terminals and one gate terminal. The main body contains an N-type layer, an P-type layer and a vertical junction between them, which forms the switching region of the device. The anode is the positive and negative current collection layer, which is connected to the body, while the gate is the switching and control layer.

The CQ92-2N has a high peak inverse blocking voltage up to 600V and a low on-state voltage drop of 0.7V at 25A, making it suitable for use in high power switching applications. Additionally, it is capable of a high resistance to noise and transients.

The CQ92-2N is mainly used in applications such as soft-start, speed control, and over voltage protection. Its high current carrying capacity and small on-state voltage drop make it suitable for these applications. It is also used in HVAC systems, lighting control, and power distribution systems.

The working principle of the CQ92-2N is based on the principle of a thyristor. It is a current-controlled, four-layer solid state switch that relies on T-shaped junctions. When a positive voltage is applied to the gate, a flow of electrons will be created, which then breaks down the potential barrier across the PN junction, allowing current to flow through the device. When the applied voltage is reduced, the flow of electrons is reduced to zero and the device is turned off.

The CQ92-2N TRIAC is an important component in the power electronics industry and has many practical applications. Its high current carrying capacity and low on-state voltage drop make it suitable for use in power switching applications such a HVAC systems, lighting control, and over voltage protection. By applying a positive voltage to the gate, the device can be turned on to allow a flow of electrons, which can then be used to control the current.

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