EC103M2

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Thyristors are a type of semiconductor device that are widely used in various power control/switching applications. They are effective for controlling high currents, low voltages and for providing a large on-off ratio. The SCRs, or silicon-controlled rectifiers, are one of the most commonly used thyristors and are used in many applications including AC motor control, arc welding power controllers, transformer rectification and UPS systems. The EC103M2 SCR is a type of ‘symmetrical’ module thyristor specifically designed for AC switching and rectifying applications. In this article, we will look at the application field and working principle of the EC103M2 SCR.

The EC103M2 SCR has a maximum on-voltage of 300V, maximum off-state voltage of 420V, junction temperature range from -40℃ to +125℃ and a maximum gate current of 30mA. These characteristics make it suitable for a number of different applications including heating controllers, AC and DC motor control, lighting and audio equipment and solar energy systems.

The EC103M2 SCR consists of two main parts: the anode and the cathode. The anode is the positive terminal of the SCR and is connected to the positive terminal of the power supply. The cathode is the negative terminal of the SCR and is connected to the negative terminal of the power supply. The gate is the control terminal of the SCR and is used to either turn the SCR on or off.

When the gate voltage is applied, the SCR turns ON and allows current to flow between the anode and the cathode. However, when the gate voltage is removed, the SCR turns OFF and no current can flow between the anode and cathode. This process of turning the SCR ON and OFF is referred to as SCR triggering.

The EC103M2 SCR can be triggered using various methods. The most common method of triggering the EC103M2 SCR is by applying a voltage to the gate terminal. When a voltage is applied, the SCR conducts current between the anode and the cathode for as long as the gate voltage is applied. This is known as forward conduction or ‘positive gate triggering’.

Another method of triggering the EC103M2 SCR is by applying a voltage to the anode terminal. When a voltage is applied to the anode terminal, the SCR will conduct current between the anode and the cathode until the gate voltage is removed. This is known as reverse conduction or ‘negative gate triggering’. The advantage of this method is that it requires less power to trigger the SCR as the gate voltage is not required.

The EC103M2 SCR can also be triggered by applying a current to the anode terminal. When a current is applied, the SCR will conduct current between the anode and the cathode until the gate voltage is removed. This method of triggering the SCR is known as current conduction or ‘current gate triggering’.

It is also possible to trigger the EC103M2 SCR using other methods such as temperature or light. Temperature triggering involves applying a temperature to the gate terminal and is mainly used for industrial applications. Light triggering is used for applications such as dimmers and is achieved by applying a light source to the gate terminal.

In conclusion, the EC103M2 SCR is an effective device for controlling high currents and voltages and is used in a wide variety of applications. It can be triggered using a variety of methods including voltage, current and temperature.

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