FCN1913H104J

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Film Capacitors, an important component in electrical circuits, are widely utilized in various electronic devices to store electric energy. FCN1913H104J is a typical film capacitor with unique features and excellent performance. This article will focus on the application field and working principle of FCN1913H104J.

Overview

FCN1913H104J is one of the most widely used film capacitor, featuring a large capacitance, good temperature stability, and excellent electrolytic stability. The main parameters of the capacitor are described in the datasheet, and the most common materials for its construction are polypropylene film. Additionally, FCN1913H104J has a maximum rated operating voltage of 500V and a maximum capacitance of 1080µF.

Application Field of FCN1913H104J

FCN1913H104J is mainly used in electric circuits as a filtering, bypassing, blocking, de-coupling, or transient voltage suppressing element. As an electronic component, FCN1913H104J can also be used in various components, such as audio amplifiers, power supplies, and switching power supplies. Furthermore, it is also commonly used in consumer electronics, automotive electronics, and industrial control systems.

Working Principle

A film capacitor consists of an insulating film, usually made of polypropylene or other materials, sandwiched between two metal plates, forming a structure which can be referred to as “plates-and-film”. The structure of FCN1913H104J differs from other capacitors in the fact that it has two pairs of plates instead of one. Each pair consists of a single metal plate and a polypropylene film.

This structure enables the electric field to spread evenly across the surface of the film, which makes it possible for the capacitor to maintain a relatively low equivalent series resistance (ESR) without influencing the capacitance. On the other hand, the double plates structure maximizes the voltage sense factor. This explains why the voltage rating of FCN1913H104J, though seemingly normal, is actually higher than most similarly-sized capacitors.

Voltage sensing is also enhanced by a special structure of the film capacitor. Both aluminum and copper metal electrodes are sandwiched between the two films. The thickness of the film is less than 100nm, which makes it possible for a relatively large voltage to pass through without damaging the capacitor. As a result, FCN1913H104J is capable of working with higher voltages than other similarly-sized capacitors.

On a basic level, the working principle for a film capacitor is the same as for an ordinary capacitor. The applied voltage causes electric charges to collect on the plates, forming an electric field. The insulation between the plates keeps the charges from leaking and allows the capacitor to store electrical energy. The more energy stored, the larger the capacitance of the device.

Conclusion

FCN1913H104J is one of the most widely used film capacitors due to its excellent features and performance. It is mainly used in electric circuits as a filtering, bypassing, blocking, de-coupling, or transient voltage suppressing element. Additionally, it can be utilized in various components, such as audio amplifiers, power supplies, and switching power supplies. The working principle of film capacitors is similar to ordinary capacitors, with the main difference being the thickness of the film. As a result, FCN1913H104J is capable of working with higher voltages than other capacitors of the same size.

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