Z0107MA 2AL2

Thyristors - TRIACs

The Z0107MA 2AL2 is a silicon bidirectional thyristor, commonly known as a TRIAC. A TRIAC is a three-terminal device that acts as a solid-state switch, capable of controlling the flow of electricity in both directions. TRIACs are used in AC power control applications, such as switching, phase-control, and phase-angle modulation.

Application Field

The Z0107MA 2AL2 is designed for applications in heating, lighting and motor speed control. Its nominal on-state current is 150mA, with a maximum of 300mA, and the normally closed voltage rating is 500V. Due to its low on-state voltage, high-current monolithic construction and smooth switching characteristics, this device is ideally suited for switching and phase-control of resistive, electronic and electromechanical loads. It is also suitable for various AC environment applications, such as alarm systems, motor speed controllers and AC dimmers.

Working Principle

The Z0107MA 2AL2 device comprises two thyristors that are connected in parallel by their gate terminals. When the gate voltage of one thyristor is supplied with a positive pulse, a current starts to flow from the main terminal anode (MA) to the cathode (KC) of the same thyristor. When the gate voltage of the other thyristor is supplied with a corresponding pulse of opposite polarity, it turns on, resulting in direct current flow from the MA to the KC of both thyristors. This action results in a synchronized conduction of both thyristors and the device behaves as if it were a single thyristor. This is known as \'controlled 4-layer commutation\'.

The Z0107MA 2AL2 is a symmetrical device, meaning that the same current levels can be observed in one direction as in the other. It also has anoutput gate voltage rating of 20V, meaning that it can be operated in a range of high-gate voltages and currents, thus allowing the device to switch with a very low on-state voltage.

Conclusion

The Z0107MA 2AL2 is a versatile and reliable switching device that can be used in a wide range of applications for controlling AC power. It has a low on-state voltage and can be operated in a range of high-gate voltages and currents. With its high-current monolithic construction and smooth switching characteristics, this device is ideal for AC environment applications, such as alarm systems, motor speed controllers and AC dimmers.