T72H0645B4DN

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Thyristors are a family of semi-conductors characterized by their ability to switch on and off, both with the passage of electrical current and the application of a voltage. The T72H0645B4DN is a six-terminal thyristor that is part of the family of silicon-controlled rectifiers (SCRs). These SCRs are often used when precise, high-power control or switching is needed in a given application. The T72H0645B4DN is commonly used in applications requiring precise motor control, surge protection, AC-to-DC conversion, and voltage regulation.The T72H0645B4DN is a sensitive gate SCR. This means that only a small current, around 25mA, needs to be applied to its gate in order to activate the main thyristor, compared to the main thyristors of other SCRs, which typically require a much higher current to turn on. This makes the T72H0645B4DN ideal for applications requiring very precise control of current and voltage.The T72H0645B4DN works by passing an AC current between its main thyristor and its gate terminal. When the correct voltage is reached (typically 25mA) the thyristor activates and allows the current to pass between its internal contacts. This type of SCR is typically used in applications requiring precise on/off control or pulsing, because of its ability to provide a very precise switching action.The T72H0645B4DN also offers some unique protection features. It is designed with a built-in diode that buffers the gate terminal from the main thyristor and prevents unnecessary transients that can damage or disrupt the component. This also gives it greater protection against voltage and current spikes or surges, making it an ideal choice for applications that are regularly exposed to such conditions.Overall, the T72H0645B4DN offers reliable and precise control for many applications. Its compact size, low activation current and built-in protection features make it an ideal choice for applications that require the precise control and protection from current and voltage surges. The T72H0645B4DN offers a great solution for many applications, from motor control, surge protection, and voltage regulation to AC-to-DC conversion.

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