Q2016LH6

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Thyristors - TRIACs

A TRIAC is a three terminal electron device, which is a three terminal version of SCRs. The typical TRIAC is rated at 400V to 600V, but higher voltage ratings are available. TRIACs are available with peak current ratings of 10A to over 100A. The TRIAC is capable of conducting current in either direction when it is triggered (gated). It is therefore a bidirectional switch.

Q2016LH6 Application Field and Working Principle

The Q2016LH6 TRIAC is often used in general purpose applications such as light dimmers, speed controls, and power supplies. It is designed for AC operations and can be used with a wide range of currents and voltages. The TRIAC is suitable for medium power applications, particularly for applications that require short switching time.

The Q2016LH6 works by the gate input allowing an amount of current to flow between the two main terminals, the MT1 and MT2. When the gate input is given a positive voltage, the TRIAC will remain open and allow no current to pass through. When it is given a negative voltage, it will close and allow a current to flow in either direction. The amount of current that will flow is dependent on the applied voltage.

The TRIAC\'s gate has two separate circuit elements-one for the positive and the other for the negative half cycle. The amount of current that each of the two elements can withstand is different. When the TRIAC is opened and then closed again, the current flowing through it is asymmetrical-the first opening will allow more current to flow than the second.

In order to control the amount of current flowing through the TRIAC, the gate input must be accurately controlled. This typically involves the use of a thyristor control circuit. A thyristor control circuit consists of a power supply, a current-sensing resistor or diode, and a control circuit. The control circuit modulates the gate current in order to regulate the amount of current flowing through the TRIAC.

The Q2016LH6 is also available with surge suppression to prevent it from shorting out in the event of an overvoltage. It also has an inductive relay which can be used to further protect the TRIAC from damage due to overcurrent.

The Q2016LH6 is a very useful and reliable component for applications where precise control of current is required. It is also very easy to use and relatively inexpensive. With its combination of features, it is well suited for a wide range of applications.

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