Q4008VH3TP

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

The Q4008VH3TP is part of a large class of devices known as thyristors, specifically called TRIACs. A TRIAC is a solid-state semiconductor device similar to a relay but with the capability of controlling current in both directions (positive and negative or "any direction"), offering full-wave control as opposed to half-wave control for other types of thyristors.

Generally, a TRIAC is two SCRs (silicon-controlled rectifiers) along with a diode that are joined together to form a single semiconductor device. SCRs are especially capable of controlling large amounts of AC power (alternating current) using a small amount of input current. When an external voltage is applied to the TRIAC, it allows current to flow in either direction of the AC circuit. And because it can control power in both directions without manual intervention, the TRIAC is used to regulate the AC current in many electrical circuits.

Applications for a Q4008VH3TP

The Q4008VH3TP is a Quadrant Heavy-Duty TRIAC with 8A/400V and is a "very sensitive" gate. It is typically used in motor controls, light dimmers and home appliance control systems, as it can provide full-wave control and accurate timing. The Q4008VH3TP is designed to dissipate far greater power than other alternatives, making it a very reliable option.

This TRIAC is also an ideal choice for applications such as Compact Fluorescent Lamps (CFLs), half-wave and full-wave heating controls, and other low-power lighting applications requiring an efficient and reliable solution.

Working Principle of the Q4008VH3TP

The Q4008VH3TP\'s main working principle is related to the fact that a TRIAC has two layers of P-type and N-type material forming a double gate or bidirectional structure. The two gates mutually overlap, forming a p-n junction and releasing two different points of control. When a positive voltage and a negative voltage are applied to the terminal pins (called the MT1 and MT2 pins), the TRIAC produces an electrical current that can control the current flowing through the circuit.

Controlling the current flow is doable due to the voltage and current relationship produced when the MT1 and MT2 pins are connected. In other words, by adding more voltage to the gates, the semiconductor material allows more electrical current to flow, thus allowing you to precisely control the amount of current that is needed.

Controlling the voltage and current can be done using AC signals, meaning that the TRIAC can control large amounts of power. In the case of a single-phase AC circuit, the TRIAC can produce a phase-shift of up to 540-degrees when controlling the voltage of the circuit. This phase-shift can help to control the AC output, giving you greater control over the power being delivered.

Conclusion

In conclusion, the Q4008VH3TP is an ideal choice for a wide range of applications including motor controls, light dimmers, heating controls, and other low-power lighting applications requiring precise control of AC power. With its 8A/400V rating, the Q4008VH3TP is a reliable, efficient and high-current TRIAC that is capable of controlling current in both directions. Furthermore, the device can be easily controlled using AC signals, allowing for precise control of voltage and current in the circuit.

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