QK012NH5TP

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Thyristors are semiconductor devices used to control and manage electrical power in a variety of applications. The three major types of thyristors are SCR (silicon controlled rectifier), Triac and Diac. The common feature of all thyristors is that they contain four alternating p-n-p-n layers, which form a charge storage device. TRIACs are preferred in applications where phase control is required, such as AC motors. QK012NH5TP is a standard 800V TRIAC which is used in medium power AC switching applications.

QK012NH5TP Application Field

QK012NH5TP is a standard 800V TRIAC and is used in medium power AC switching applications, such as phase control, motor control and lighting. It has an isolating interface between the semiconductor and the Heatsink, which makes it suitable for applications wherein the device must be kept away from exposed conductors or conductive surfaces. QK012NH5TP can also be used for automotive applications, home and industrial appliances, consumer electronics and HVAC systems.

QK012NH5TP Working Principle

The QK012NH5TP utilizes a four-layer construction to achieve better performance and experience. This device combines four alternating p-n-p-n layers, with each layer made from a different type of semiconductor material, such as germanium, silicon, gallium arsenide, and silicon carbide. The four layers act as a charge storage device, allowing the TRIAC to regulate a large number of electrical properties. In operation, the control voltage applied to the gate of the TRIAC causes it to turn on without the need for current flow. The resulting current flows between the main electrodes, one of which carries the load current and the other the switching current. The exact timing of the switching voltage is determined by the control voltage, allowing for precise control of the AC load.

The QK012NH5TP is capable of switching AC voltages up to 800V and can switch up to 20A of current. This device is temperature-compensated to ensure reliable switching performance in ambient temperatures of up to +100°C. It is also designed to withstand voltage transients up to 600V, making it an ideal choice for a wide range of applications.

In summary, the QK012NH5TP is a standard 800V TRIAC which is used in medium power AC switching applications. It is suitable for applications wherein the device must be kept away from exposed conductors or conductive surfaces, as it has an isolating interface between the semiconductor and the Heatsink. Its four-layer construction and temperature-compensated characteristics make it ideal for a wide range of applications.

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