LX803ME

Thyristors - TRIACs are electronic components used as electrical switches for controlling and switching of electronic loads. It is a three-terminal device that acts as a switch for AC (Alternating Current) circuits. The LX803ME is one of these Thyristors - TRIACs and it is used in many applications.

The LX803ME is a 4-quadrant TRIAC module, commonly used in motor speed control, AC power control, dimming of incandescent lamps and other applications that require phase control of AC loads. It is rated for low voltage applications, up to 400 Volts, and has a maximum current rating of 8 Amps.

One of the key features of this Thyristor - TRIAC is its fast switching operation as it can switch between 0 and 100% of the AC cycle in a fraction of a microsecond. This makes it ideal for applications that require highly accurate phase-controlled switching and dimming. Its low on-state leakage current of less than 1mA makes it suitable for isolating applications where certain electronic components require isolation from the power source.

The LX803ME features robust construction, time-domain capacitive snubber, built-in logic level compatibility and noise immunity and low EMI. It is RoHS compliant and can operate in temperatures from -40°C to 85°C, making it suitable for a variety of applications in industries such as automotive, HVAC, and home appliances.

The working principle of the LX803ME Thyristor - TRIAC is based on the use of four bi-directional GTOs, known as Quadrants. The device can be triggered in any of the four Gate-Trigger (GT) zones, leading to the control of spontaneous current flow in two directions. The GTOs are driven by an external gate current, and the output current is controlled by the amount of GT current supplied to the Thyristor. By varying the Gate current, the amount of output current can be varied in both directions- i.e. any point in between full On and full Off can be achieved.

In summary, the LX803ME is a high quality, reliable and cost-effective Thyristor - TRIAC ideal for AC load control applications. It is rated for low-voltage applications and has a fast switching capability allowing for an accurate control of the AC circuit. Its robust construction and low on-state leakage current makes it suitable for a variety of applications, allowing for an efficient and reliable control of electronic loads.