Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Thyristors - TRIACs

BCR16CM-16LB#BB0 is a bidirectional, TRiode for Alternating Current (TRIAC). The \'#BB0\' after the part number is a B-level part number in which it has a guaranteed VBO of 11.5V or less at Ic = 2mA.

The main applications of TRIACs involve light dimming, heating control, fan speed control, and motor control. It is also used for powering resistive and reactive industrial loads as well as more sophisticated electronic control system. TRIACs are two-terminal semiconductor devices with three independent terminals (MT1, MT2, and gate) and are classified according to their on-state current capability. Low-power TRIACs (for example BCR16CM-16LB#BB0) are widely employed in the control of both AC and DC circuits.

TRIACs Working Principle

A TRIAC is a semiconductor device made up of two thyristors in opposite direction with their gates connected together. Under the normal condition, TRIAC is in OFF state, so that it does not allow the flow of current in either direction. To turn ON the TRIAC, one must short the MT1 and MT2 by providing a positive or negative Gate voltage. The TRIAC is an on-state device and will remain in the ON-state as long as there is sufficient current in the circuit.

In order to turn off the TRIAC, the current through it must be reduced below a certain level. This can be done by reducing the current from the gate terminals or by changing the voltage, as in zero-crossing control. If the current is not reduced below the holding current level, then the TRIAC will remain in the ON-state.

TRIAC Applications

TRIACs are used in switching applications across a wide range of electronic applications such as light dimmers for home appliances, motor speed control for industrial motors, and in input circuit protection for AC mains power supply. They are used for controlling lighting and other low-power appliances such as fans and heating elements. TRIACs are used as AC phase control elements in temperature controls and motor controllers in home appliances such as washing machines, refrigerators, and air conditioners.

TRIACs can also be used in AC source protection such as input circuit protection in AC mains supply. The TRIACs are paired with a fast-acting fuse, thermistor, or metal-oxide varistor (MOV) to provide over-current protection. The high-surge capability of the TRIAC makes it suitable for raw AC line switching applications.

Conclusion

BCR16CM-16LB#BB0 is a low-power TRIAC with a guaranteed VBO of 11.5V or less at Ic = 2mA. It is suitable for switching applications such as light dimming, motor control, and input circuit protection in AC mains supply. The TRIAC can be used to control both AC and DC circuits, due to its bidirectional capability.

The specific data is subject to PDF, and the above content is for reference