BT131-800EQP

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Thyristors - TRIACs

A TRIAC, or a three-terminal triode alternating current switch, is a type of thyristor device that is widely used in AC power control circuits. The BT131-800EQP thyristor device makes up a part of this circuit, and it is used for controlling the size and duration of the output current in the AC load circuit. It has a gate-controlled current control capability that makes it an effective power control device for converting AC input into a steady, regulated source of power.

BT131-800EQP Application Field and Working Principle

The BT131-800EQP thyristor is best-suited for use in applications involving AC power control, such as fan and pump speed control, automotive engine control, lighting control, and HVAC systems. It works by regulating the output current from the AC load, utilizing a combination of two thyristors connected in opposite direction and operating together in the same phase. The device is triggered with a gate signal, allowing for a precisely regulated output current.

The TRIAC thyristor device offers several advantages to its users. Because it is triggered with a gate signal, it allows for a low input control signal power, providing high-energy efficiency. Additionally, when it is triggered, the TRiAC can selectively manage the conduction period and amplitude of the output current. This allows the TRIAC to handle both light- and heavy-load applications, making it a highly-versatile device.

When it comes to working principle, the BT131-800EQP thyristor works by being triggered with a gate signal that causes the two thyristors connected in series to begin conducting. As this occurs, the two thyristors share a single current control path, allowing for the regularization of the current in the load circuit. As the voltage across the load increases, it eventually reaches the device’s breakover voltage point, causing the TRIAC to cease conducting and turn off to finish the process.

The BT131-800EQP is an upgraded version of the BT131-800 thyristor. It is designed to handle higher-voltage and higher-power applications, providing improved accuracy and temperature consistency compared to its predecessor. Additionally, the device features increased safety features, preventing over-current and other conditions that could harm the device and other equipment.

The BT131-800EQP thyristor is an invaluable component in AC power control circuits and devices. Its ease of integration and superior performance making it suitable for use in a variety of applications. It is a reliable and cost-effective device that provides the user with the necessary power control and regulation without introducing excessive complexity or cost.

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