BTA2008-1000D,126

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Thyristors - TRIACs are solid state components which have been widely used in many common electronic designs and devices. A TRIAC is a three terminal device that has a role similar to that of a diode, but with a few advantages over the latter. The BTA2008-1000D is a particularly efficient TRIAC device.

It has a wide range of current ratings, from 2A to 10A, and a peak inverse voltage of 1000V, making it suitable for systems that run from not just 110V, but also from 220V AC mains. It also has a very low of gate current requirements, making it an ideal choice for implementation in low power systems.

The two main advantages of TRIACs are the ability to control current in both directions, and the ability to be triggered from either direction of the waveform. This makes them extremely useful for controlling AC drivers in three phase systems, as the output voltage waveforms can be manipulated by triggering at the required points. One possible application is for the controlling of fans and blowers in air conditioning systems. The voltage applied to the fan’s motor can be modulated using the TRIAC to achieve the desired level of fan speed.

BTA2008-1000D is also particularly suitable for applications where reverse voltage protection is required, as they can be used to limit the voltage across the motor even when the motor is operating in reverse. This helps to avoid damage that can be caused by inadvertently reversing a motor.

The working principle of a TRIAC is best explained using an example of a circuit which uses a BTA2008-1000D. The circuit consists of a trigger to provide control, the TRIAC itself and the load, which in this instance would be a motor. The supply voltage is connected to the two mains terminals of the TRIAC, called MT1 and MT2, and the load is connected between MT2 and G, the gate terminal. The control signal is then connected to the gate terminal.

When the control signal is low, no current can flow and the TRIAC is ‘off’. When the signal rises and exceeds a specific threshold level, known as the Gate Trigger Voltage (GTV) of the TRIAC, a positive ion current is conducted between the MT1 and MT2 terminals. This current then continues to flow as long as the signal exceeds the GTV, and is limited by the TRIAC’s current ratings.

It should be noted that the TRIAC will remain in its ‘on’ state even when the signal drops below the GTV, as long as the current does not fall below the minimum current requirements of the TRIAC. This is a feature known as latching, and is what makes TRIACs suitable for AC drivers.

In summary, the BTA2008-1000D is a highly efficient, low gate current TRIAC that can be used in a wide range of electronic designs and applications. Its features make it particularly suitable for working with high voltage systems, reverse voltage protection and AC drivers in three phase systems. It works on the principle of a positive ion current between MT1 and MT2 terminals, which is triggered when the input signal goes above the GTV. This current is then able to stay ‘on’, even when the signal drops below the GTV.

The specific data is subject to PDF, and the above content is for reference