VS-VSKH570-18PBF

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Thyristors, are solid-state semiconductor devices created to switch electrical current when triggered. They are composed of four layers of alternating n-type and p-type Silicon, structured in a so-called “PNPN” configuration. Silicon-controlled rectifiers, also known as SCRs, are solid-state semiconductor devices used for switching, voltage regulation, and signal processing applications. SCRs are similar to thyristors but are three-electrode devices composed of three layers of n-type, p-type, and n-type Silicon arranged together in a “PNP” configuration.

A VS-VSKH570-18PBF module is an SCR power module designed with protection features. This module is designed as a four-pin rectifier that is created with advanced technology to provide superior electrical and thermal characteristics, minimal leakage current, and good temperature coefficient. It is a 600V/2a block SCR suitable for high current applications, and is capable of switching up to three times the rated current without additional cooling. The protection features include electrical and thermal overload protection, overvoltage protection, reverse voltage protection and reverse current protection.

The VS-VSKH570-18PBF module’s application field includes motor control, welding, battery charging, UPS and power conditioning, induction heating, and any other application where a reliable and efficient control of current is needed. By controlling the current, the peak or average current can be reduced, which can result in a better power factor, efficiency and longevity of the application.

The working principle of a VS-VSKH570-18PBF module is based on the combination of two different electrical switching elements: the semiconductor thyristor and the diode. When a sufficient gate current is applied to the module, the thyristor turns ON and the current flow path is established, allowing the current to flow through the diode to the load. This is an important feature, because it allows the current to flow in both directions and allows the module to serve as a controlled switch. The current control can be maintained with this module due to a higher control voltage compared to the switch trigger voltage.

When the gate current is removed, the module will remain in the same state but current is no longer possible from the diode to the load. The module’s built-in protection features make it ideal for applications where sudden surges of current, such as during surges in voltage or load changes, can be prevented.

In addition to the aforementioned features, the VS-VSKH570-18PBF module is also designed with a built-in on/off switch. This switch allows the module to be switched off remotely and is particularly useful in applications where the load must be isolated from the power source in order to prevent damage to the other components in the system. This on/off switch can be triggered manually or by remote control, depending on the application.

In summary, VS-VSKH570-18PBF module is an SCR power module designed with protection features that is suitable for many applications where current control and reliability are important. It is capable of controlling current in both directions, allowing peak and average control, offering protection against electro-thermal overload, overvoltage, reverse voltage and reverse current, and providing the option of a built-in on/off switch for remote control.

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