V47CH8T Circuit Protection

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TVS (Transient Voltage Suppression) devices are widely used for providing electrical protection in systems that are sensitive to high voltages. Among them, varistors (also known as Metal Oxide Varistors - MOVs) and V47CH8T are the two most popular and widely used solutions. This article will explain in detail the application fields and working principle of V47CH8T.

Electrical Characteristics of V47CH8T

V47CH8T is a high energy absorptive bimetal device which provides overvoltage protection for electronic components and circuits. It can handle high surge energy up to 150 Joules without any damage. The typical clamping voltage of V47CH8T is around 18V. It has excellent temperature coefficient, fast response to voltage spikes, and low temperature drift performance. It offers outstanding reliability and resistance to thermal and voltage cycling.

Application Fields of V47CH8T

V47CH8T is widely used in power line protection and telecom application. It effectively helps to suppress over voltage transients in power line applications and prevents damage to the system. It is mostly used in switching power supplies, AC-DC converters, motor drives, and solar power systems. It is also suitable for use in power line surge protection devices. In addition, V47CH8T can be used in telecom applications such as protection of telephone and radio equipment, and lightning protection of communication cables.

Working Principle of V47CH8T

V47CH8T is a bimetal element consisting of two strips of different metals (iron and chromium) that are joined together. When the voltage across the V47CH8T exceeds its specified voltage rating, the resistance of the device increases. This increase in resistance reduces the amount of current that can flow through the device. The resistance of the bimetal element thus acts as a current limiter. This current limit helps to protect sensitive electronics from damage caused by voltage spikes. The rapid response time of V47CH8T ensures that it can protect against high-voltage transients in a fraction of a second.

Conclusion

V47CH8T provides rapid and reliable protection from overvoltages for many applications including power line protection, telecoms, and solar power systems. It is one of the most reliable and cost-effective overvoltage solutions and offers excellent performance compared to other similar solutions. Thus, it is being increasingly used in many high-sensitive projects.

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