ECQ-E6472KF

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Film Capacitors

Film capacitors, also known as plastic film capacitors, are commonly used as a ‘filter’ in applications involving high frequency signals, audio and video filtering or filtering/stabilization of power supplies. Plastic film capacitors are non-polarized and are also used as couplers or timing components in circuits.

The construction of the ECQ-E6472KF film capacitor is based on the structure of a thin sheet of plastic film such as polypropylene (PP) or polyester (PET) used as the dielectric. A metal layer is evaporated onto the film which forms the two electrodes. The dielectric film and electrodes are sealed with a heat-resistant thermoplastic material to form a capacitor with a cylindrical or rectangular shape.

The most common application of film capacitors is in DC-link circuits. Such circuits involve the use of an electrolytic capacitor and a film capacitor connected in parallel. The electrolytic capacitor works as the main smoothing capacitor and its ‘ripple’ current is limited by the film capacitor. The ECQ-E6472KF film capacitor is ideal for this application due to its large capacitance, its high ripple current rating, its low ESR and its high insulation resistance.

The ECQ-E6472KF is also widely used in AC/DC chopper circuits which require stable initial voltage. This is achieved by connecting the ECQ-E6472KF in series with an electrolytic capacitor to the chopper circuit. The film capacitor provides the required stability since it is inherently less affected by fluctuations in temperature and distort of the load current by a large factor.

Film capacitors are also used in noise suppression applications. The ECQ-E6472KF is often used to reduce the noise in audio amplifiers and other audio applications. This is due to its low ESR and its ability to absorb high frequency noise. In addition, its noise-suppressing properties can be further enhanced by connecting it with a negative temperature coefficient resistor in parallel.

The ECQ-E6472KF film capacitor is also used in high frequency switching power supplies. Its high frequency carrier allows it to create high-quality power and support the higher frequency of power generated by switching power supplies. Its other characteristics, such as its low ESR, high insulation resistance and large capacitance, also make it well-suited for this application.

Finally, the ECQ-E6472KF can be used for power factor correction. In this application, the ECQ-E6472KF is connected in parallel with an electrolytic capacitor to form an ‘RC’ circuit. This circuit provides a stable voltage output when the load is not the same, which helps improve the power system efficiency.

The ECQ-E6472KF film capacitor is an ideal choice for a variety of different applications. It features a robust construction, a range of different capacitance values, high ripple current rating, low ESR, high insulation resistance, and various other properties that makes it suitable for various different applications. Whether it is being used in DC-link circuits, noise suppression, power factor correction, or high-frequency switching power supplies, the ECQ-E6472KF can provide the necessary performance and reliability.

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