BTA312-800B,127

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Thyristors - TRIACs

A TRIAC, or Triode for Alternating Current, is a three-terminal semiconductor device with three layers of alternating P-type and N-type semiconductor material. It is used primarily in metering and switching applications, offering a high-speed response to control signals with a wide dynamic range and an efficient implementation of power control. TRIACs are current-controlled switching devices, meaning they switch when the current through them reaches a certain level. A TRIAC is a variable resistor, allowing for precise control of the load current.

BTA312-800B,127 Application Field and Working Principle

BTA312-800B,127 is a thyristor/triac with a holding current of 800mA (at 25°C) and its maximum nominative blocking voltage is 1200V. It is a compact, efficient and cost-effective device which is designed for a wide range of applications such as domestic, industrial and consumer electronics. The device is suitable for AC switching, dimming and power control applications, providing a long term and reliable solution.

The principle of operations of BTA312-800B,127 is based on the strong current of its negative gate MT2. When this current is below the trigger current (ITRIG), a zero voltage firing occurs by the negative gate MT2, and the thyristor or TRIAC starts to conduct. As the current continues to increase the thyristor or TRIAC turns off when the current reaches the maximum off-state current (IH) or the off-state voltage reaches the specified breakover voltage (VBO).

The BTA312-800B,127 is designed to have a high dV/dt capability, providing more reliable and stable switching. Additionally it has high commutation capability for controlling inrush currents, which makes it suitable for dimming and power control applications. The device can be used for switching, high-speed power control and dimming.

By using BTA312-800B,127, electrical systems can be very energy efficient. The energy-saving feature in the system ensures that the amount of energy used is reduced, guaranteeing long-term savings. Thanks to the excellence of its power control, the device offers significant efficiency in the conversion of eletrical energy.

Overall, the BTA312-800B,127 is an ideal choice for electronic circuits requiring tight precision and control for switching and dimming purposes. This device has a wide range of applications that include domestic, industrial and consumer electronics and its excellent power control capability is key to ensuring efficient and reliable performance in any environment.

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