BTB12-800BW3G

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Introduction to Thyristors - TRIACs

Thyristors - TRIACs (Triode Alternating Current) are semiconductor devices that can switch high voltage and current in both directions. This makes them suited for AC applications where the direction of current flow needs to be reversed often, such as motor control and light dimmers. They are also used for low level triggering in other applications. The main difference between a TRIAC and a single thyristor is that a TRIAC has three controlled terminals, instead of one in a single thyristor.

The BTB12-800BW3G and its Application Field

The BTB12-800BW3G is a TRIAC device developed by Toshiba Electronic Components. It is specifically designed for medium current applications, such as ballast control, motor control, and power control. These applications require switching devices that are capable of controlling large amounts of current, while at the same time, maintaining power efficiency and reliable operation. The BTB12-800BW3G is an ideal candidate for such applications as it features a relatively high breakover voltage of 800V and a current handling capability up to 12A.

Moreover, the BTB12-800BW3G is housed in a TO-220 package, which helps to ensure optimal thermal dissipation during high current operation. The device is also capable of operation with gate current as low as 2A, making it an ideal choice for low power control.

Working Principle of the BTB12-800BW3G

The BTB12-800BW3G works on the principle of two thyristors connected in series, with a common gate terminal. One thyristor allows current in one direction while the other thyristor allows current in the other direction. When a gate voltage is applied to the gate terminal, both thyristors are turned on and current flows in both directions. As long as the gate voltage is applied, the current will continue to flow. The BTB12-800BW3G is designed to provide maximum current and voltage handling capabilities, while minimizing the amount of power consumption.

The device also has a low-level gate triggering capability of 2A or less. This means it can be turned on and off quickly, allowing the user to control the current and voltage in a wide range of applications. The device can also be operated in tandem, allowing for more efficient current control.

Conclusion

The BTB12-800BW3G is an ideal choice for applications requiring medium current control, such as motor control and power control. It features a relatively high breakdown voltage of 800V, as well as a high current handling capability of up to 12A. It is also capable of being operated with a low-level gate triggering capability of 2A or less. This makes it suitable for applications with low power control.

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