ES1LJHR3G

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ES1LJHR3G Application Field and Working Principle

ES1LJHR3G is a high voltage single phase reverse blocking thyristor, also referred to as a silicon controlled rectifier (SCR). It is usually used to control high power ac circuits where a small phase lag and low control power are required. It is widely used in UPS and motor control systems, communication systems, and power supply systems, as well as various types of transformers, regulators, and power inverters.

Features and Benefits of ES1LJHR3G

The ES1LJHR3G has several features and benefits that make it well suited for use in high power control applications. These include:

• A high voltage blocking voltage rating of 800 V.
• Low leakage current of 0.07 µA.
• Low thermal resistance of 48.8 K/W.
• A wide temperature operating range from -55 to 125°C.
• High reverse-blocking capability.
• Low on-state resistance.
• High slew rate.
• High dV/dt capability.

Working Principle of ES1LJHR3G

The ES1LJHR3G consists of four semiconductor layers, as shown in the diagram below. Two of the layers form an intrinsic gate junction, while the other two form a reverse-blocking junction. When a gate signal is applied to the gate junction, the leakage current increases, and the device turns on. The main current then flows through the device, and the charge is stored in the reverse-blocking junction. When the gate signal is removed, the current no longer flows, and the charge stored in the reverse-blocking junction is used to block any reverse current from flowing through the device.

The ES1LJHR3G also has several additional features important in controlling AC circuits, such as temperature compensation, noise suppression, and current limit protection. As a result, the device is able to provide stable and reliable control of AC circuits.

Conclusion

The ES1LJHR3G is a high voltage single phase reverse blocking thyristor that is well suited for controlling high power ac circuits. It has a high reverse-blocking capability and low on-state resistance, as well as several protection features to ensure stable and reliable operation. It is widely used in UPS and motor control systems, communication systems, and power supply systems, as well as various types of transformers, regulators, and power inverters.

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