BTA12-600BW

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Thyristors - TRIACs refer to a broad class of electronic devices that act somewhat like semiconductor switches, but with greater versatility. These devices are widely used in industrial applications and work best when they are controlled by modern electronics technology. The BTA12-600BW is a TRIAC from a series of devices that have applications in the automotive industry, lighting and LED lighting, motor control, heating elements, power supply and dimmer applications. This particular device is rated for an off-state voltage of 600V and a continuous current (ITM) of 12A. Below is an overview of its application field and working principle.

Application Field

The BTA12-600BW device is suitable for applications where SCR, UJT and MOS devices are inadequate. It is widely used in automotive engines and other applications where high frequency voltage or current control is needed. It is also used in LED lighting, HID lighting, motor control programs, heating elements, power supply and dimmer applications. In addition, these devices are well-suited for applications where a switching action must be maintained over a wide range of temperatures and frequencies.

Working Principle

The BTA12-600BW consists of two thyristors connected in inverse parallel known as a pair of tri-thyristor or “TRIAC”. Each thyristor has two PNPN junctions connected in series with the gate terminal positioned between them. The TRIAC functions best when a voltage is applied to terminals A1 and A2, which cause current to flow from the main terminal of the triac. When the gate terminal is then triggered, both thyristors are forward-biased and current is allowed to flow from both directions. This operating state can be maintained over a wide temperature range and for different frequencies.

The BTA12-600BW is an example of a TRIAC that has applications in the automotive industry, lighting, LED lighting, motor control, heating elements, power supply and dimmer applications. This device is suitable for applications where SCR, UJT and MOS devices are inadequate and its two thyristor circuitry allows it to function in a wide array of conditions.

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