FCN3931E394K-U

Film Capacitors

Film capacitors are a kind of capacitors having versatile application and property, with the main feature of high insulation and high stability as well as broad application field. These special features make FCN3931E394K-U one of the most preferred film capacitors among those available on the markets.

Application Field

FCN3931E394K-U has a wide application field, from typical applications in power electronics, such as inverter, solar energy and motor drives, to sensitive instruments in telecommunications. Being able to provide a superior frequency characteristic and control over the voltage, it is also found in communication systems and many other occasions.

Working Principle

A film capacitor consists of multiple layers of thin plastic film as electrodes. The distance between the electrodes is very thin, about 0.001 mm. FCN3931E394K-U is an ‘all polypropylene film’ capacitor, meaning that it does not contain any paper in its electrodes. This type of capacitors is more often connected in ac applications, because the film makes the capacitors very resistant to be influenced by any temperature change.

Using ‘metallized’ technology (metal deposition onto the electrodes), a very thin layer of metal is applied directly onto the plastic films, making an even smaller distance. As a result, a very compact structure for the capacitors is formed without losing its stability.

A very thin oxide layer works as insulation between the layers of electrodes. It serves as a key factor in providing high insulation performance. This oxide layer also has a very stable characteristic, making the whole capacitor very stable and resistant to environmental influence. It even works so well in humid environments, making it a great choice for the application.

Conclusion

With the stability, high insulation performance, and broad application field, FCN3931E394K-U film capacitor is a great choice for any demanding applications. Metallized film technology makes it possible to install the device in an even more compact structure, making it even suitable for a wide variety of electronics and communication system.