R75QI21205000J

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Film capacitors are a type of capacitor that use thin plastic films to ensure electrical insulation. One of the more popular types is the R75QI21205000J, which is both versatile and with superior performance. This article will discuss the application field and working principle of the R75QI21205000J.

Application Field

The R75QI21205000J is typically used in applications that require both high capacitance and high-voltage properties, such as in motor starters, transmission machinery, power supplies, UPS systems, and even audio equipment. The high voltage performance of this type of capacitor also makes it ideal in applications that require both high capacitance and high-voltage performance in the same circuit, such as in microelectronic devices.

In addition to its high-voltage properties, the R75QI21205000J also provides extremely low frequency noise, making it suitable for high-stability processes such as in audio devices or medical instruments. This low frequency noise finds its most common use in precision medical or audio instruments. It is also used in anti-interference devices, such as in alarm systems or RF shields.

Working Principle

The R75QI21205000J operates on a standard film capacitor principle. It is manufactured from two plastic films, of different materials and thicknesses, that are bonded together. An electrical charge is then applied to the two films, creating an electric field between them. This electric field will attract and store electrical charges, which allows the capacitor to retain its charge for a period of time.

The electric field created by the R75QI21205000J can be strengthened and weakened depending on the type of film used and the distance between them. This allows for a wide range of capacitance, from 0.01uF to 10,000uF. The voltage rating of these capacitors is typically between 25V and 400V, making them suitable for a wide range of applications.

The R75QI21205000J also comes with a higher temperature rating, making them suitable for environments where temperatures may reach as high as 70°C. This makes the R75QI21205000J ideal for applications where the electric field must stay strong despite temperature fluctuations.

Conclusion

The R75QI21205000J is a type of film capacitor that is versatile and with superior performance. Its electric field is suitable for a range of applications, from power supplies to audio equipment. This type of capacitor is also capable of withstanding higher temperatures, making it an ideal choice for use in areas where temperature fluctuates, such as in alarm systems or RF shields. The R75QI21205000J is an essential component for any application that requires both high capacitance and high-voltage performance.

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