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Thyristors - SCRs - Modules

VYK70-16IO7 application field and working principle

VYK70-16IO7 is a silicon controlled rectifier (SCR) module made of four SCRs and one diode. It is widely used in residential, commercial and industrial applications such as control and protection of electric motors, power supplies, uninterruptible power supplies (UPSs) and capacitors, acting as an electric switch. It is also used for welding, lighting control and temperature control.

This SCR module consists of four SCRs with each containing two electrodes and one gate. A diode is also connected to the middle of the four SCRs which act as a freewheeling diode. This diode helps to reduce voltages stored in the inductive load when the SCR is turned off. The SCR acts like an on/off switch when there is a voltage applied to the gate terminal.

When an anode-cathode voltage is applied to the SCR, the voltage triggers the gate and current begins to flow from anode to cathode. To reverse the direction of the current flow, the gate must be triggered again. The gate triggers at a defined voltage range, which is referred to as the "trigger voltage". The range of the firing voltage is from 1.2 volts to 10 volts, making it a medium triggering SCR.

The most important factor when it comes to the working of the VYK70-16IO7 is its reverse voltage handling capability. The peak reverse voltage of this SCR module is 16V, which is the maximum voltage that can be applied in the opposite direction of the current flow. The maximum peak current rating of this SCR module is 300A, and its power loss is very low. This SCR module is also designed to operate at very high temperatures, making it ideal for industrial applications.

The VYK70-16IO7 SCR module can be used to control and protect electrical motors, power supplies, uninterruptible power supplies (UPSs) and capacitors. It can also be used for welding, lighting control and temperature control. This SCR module is widely used for applications with medium and high power, due to its low power loss and reverse voltage handling capability.

To summarize, VYK70-16IO7 is a four-part SCR module made of four SCRs and one diode. It has medium triggering voltage range, maximum peak current rating of 300A, and peak reverse voltage of 16V. It can be used to control and protect electrical motors, power supplies, UPSs, capacitors, welding, lighting, and temperature control. Because of its low power loss and reverse voltage handling capability, this SCR module is widely used for applications with medium and high power.

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