T727084844DN

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Thyristors - SCRs

T727084844DN is a silicon controlled rectifier (SCR) device that is part of the thyristor family. SCRs are power electronics switches with two terminals, Gate and Anode. They are used in many applications, from motor control to lighting, to provide electrical control of higher voltage and current than other traditional electronic switches.

Applications of the T727084844DN

The T727084844DN is a reliable and economical choice in a variety of applications, including motor control and switching, heating/lighting control, process control, and solid-state relays. As with all thyristors, the T727084844DN has high-voltage and high-current capabilities, meaning that it can switch circuits with higher voltages and currents than other traditional electronic switches.

In motor control, the T727084844DN is used to control the speed, direction, and torque of AC induction motors, DC motors, and stepper motors. These motors are used in variable-speed drives, elevators, and HVAC systems, as well as manufacturing and industrial applications. The T727084844DN can also be used in light dimmers and can switch LED and CFL lighting. Additionally, the device can be used for switching heaters and for energy savings.

Working Principle of T727084844DN

The T727084844DN is a thyristor-type power-switching device. It works by using a reverse-biased internal PN junction to store a charge; this charge allows the device to trigger and switch on at an ideal voltage, and remain switched on as long as a current is kept flowing through the device. When the Gate terminal of the device is triggered, the device is switched on and current flows through the Anode and Cathode terminals.

The SCR switches off when the current falls below the Holding Current, or when the Anode-to-Cathode voltage drops below the device\'s Break-over Voltage. Additionally, the device can be manually switched off by reversing the anode-to-cathode voltage, triggering the built-in gate protection circuit. As with most power switching devices, the gate of the T727084844DN must be properly protected from over-voltage and over-current conditions.

Conclusion

The T727084844DN is a dependable, low-cost power switching device, designed for a wide range of applications. It is a reliable choice for motor control, switching, lighting, and process control, as well as for solid-state relays. The device works by using a reverse-biased internal PN junction to store a charge, which allows for triggering and switching on at an ideal voltage. The device can be manually switched off by reversing the Anode-to-Cathode voltage, and must have its Gate terminal properly protected.

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