L6X5

Thyristors - TRIACs

TRIACs (Triode for Alternating Current) are thyristors belonging to the family of bidirectional solid state switches, used mainly in AC circuits. They are ideal candidates for heavy industrial power applications. The TRIAC is triggered into conduction by applying half wave pulses to its main terminals and current flows in both directions. This makes it useful for controlling power in AC circuits and useful in analog switching circuits. TRIACs are used extensively in motor start circuits, control circuits, power switches, protective control and lighting systems.

L6X5 application field and working principle

The L6X5 series is an integrated TRIAC which comprises a silicon controlled rectifier (SCR) and a gate-controlled switch, as well as an RC snubber network. It has a relatively large gate current that allows for quick switching, with leakage current of 2.5mA at 25°C. This series is suitable for controlling power in applications that require higher currents, such as electric motors, lighting, pumps and control circuits. It is also suitable for use in medium power AC motors for precision position control.

The L6X5 series works based on the basic principle of TRIACs where the gate current is passed through an RC network to charge the gate capacitance, which turns on the switch. When the switch is on, the stored gate current flows through the device and the main current of the device flows in both the forward and reverse directions. When the gate current is increased to a certain level, the TRIAC will latch on to the main voltage. By adjusting the gate current through the RC network, the switching point of the TRIAC is adjusted.

The L6X5 series can be used in a variety of applications, such as motor controllers, lighting circuits, AC switches, power supplies and SMPS (switched-mode power supplies). It is also suitable for use in applications that require constant power control, such as a thyristor-based AC power regulator. To ensure the proper functioning of L6X5 series, it is important to properly install the snubber network and correctly use the gate current for triggering the TRIAC.

The L6X5 series has a wide range of features and benefits that make it an ideal choice for power control applications. It has a fast switching time, low gate and main voltage requirements, and a low power consumption. It is also available in a range of standard AC voltages and characteristics, making it very versatile and suitable for a variety of applications.

The L6X5 series of TRIACs are an ideal choice for use in AC power control applications due to their wide range of features and benefits. They are robust and reliable and have a high switching speed, making them suitable for applications where precise power control is required. The L6X5 series can handle currents ranging from 0.8A to 5A, making them ideal for most power control applications, from small to large. Additionally, the comprehensive RC snubber network ensures the safe and proper functioning of the L6X5 series.