2N6071BTG

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Thyristors - TRIACs

The 2N6071BTG is a Bi-directional Triode AC Switch, better known as TRIAC. It functions as a switch in the AC power circuit, and is used in applications such as load control, phase control, light dimming and motor control.

Application Field

The 2N6071BTG is widely used in industrial, commercial and consumer-level products. It is widely used in heating systems, load control, dimmers, lighting control, AC motors, appliances, and other AC power systems. This TRIAC can also be used to provide power to operation in high-current AC environments, such as in HVAC systems, welding equipment and motor control systems.

Working Principle

The 2N6071BTG can be triggered on by a low-level current which is able to flow through the Gate-Cathode junction of the TRIAC. By applying a voltage between the Gate and Main Terminal (MT), the device is easily switched on and off. In the on-state, current is allowed to flow both ways across the terminals and the Gate. When in the off-state, the Gate-Cathode junction is effectively open and no current flow is observed. The 2N6071BTG is designed to be used as an on-off switch, and it is not recommended for use in variable-speed or variable-resistance applications.

The switching action of a TRIAC can be controlled by switching the power-supply current on or off. To prevent accidental triggering, the Gate-Cathode junction of 2N6071BTG has a relatively high breakdown voltage of 400V. It also has a high current gain of 20.

The main advantage of using a 2N6071BTG over a conventional mechanical switch is the low voltage trigger level and low capacitance level. The low voltage trigger level ensures that the TRIAC can be triggered on with low-level AC signals, while the low capacitance ensures less power loss when switching in high frequency applications.

Conclusion

The 2N6071BTG is a Bi-directional Triode AC Switch, better known as a TRIAC. It is widely used in industrial, commercial, and consumer-level products, including heating systems, load control, dimmers, lighting control, AC motors, and other AC power systems. It can be triggered on by a low-level current which is able to flow through the gate-cathode junction of the TRIAC. The main advantages of using a 2N6071BTG over a conventional mechanical switch are the low voltage trigger level, low capacitance and high current gain.

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