TVB270SA

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TVB270SA is a 4.5 kV silicon symmetrical avalanche diode. It is designed for application in motor starting circuits, traction drives, industrial drives and other similar demanding applications. Because of several unique elements of design, the TVB270SA has outstanding performance in very demanding operating conditions. This device is a member of the family of thyristors.

The TVB270SA can provide low overshoot switching times with very low turn on and turn off losses, very high dv/dt immunity and excellent current sharing between multiple devices when operated under identical conditions. Therefore, the device is ideal for use in motor starting and speed control circuits, traction drives and other demanding applications.

The working principle of the device is based on what is known as the avalanche breakdown effect. Basically, when a very high electric field is applied to the device, it breaks down (or “avalanches”) and starts conducting electricity. This is the basis of thyristor operation.

The TVB270SA utilizes a unique structure which includes a number of layers of silicon dioxide between the two silicon wafers. This allows the device to be rapidly turned on and off without any damage. Additionally, the device features very low turn on and turn off losses, making it ideal for applications where high power switching is required.

The TVB270SA also features a very high dv/dt immunity, making it particularly suitable for applications where the current waveform has a high peak value. Additionally, the device can be connected in parallel with other devices in order to achieve very high current sharing.

Overall, the TVB270SA is a great choice for applications requiring a low overshoot switching time, very low turn on and turn off losses, high dv/dt immunity and excellent current sharing. The device is also suitable for high power switching applications and has been designed to ensure reliable operation under very demanding operating conditions.

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