ECQ-E12473KFB

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Film Capacitors

A film capacitor or film dielectric capacitor, is an electrical capacitor with an insulating plastic film as the dielectric, sometimes combined with paper as a carrier of the electrodes. Commonly used materials for the film are polypropylene (PP), polychlorotrifluoroethylene (PCTFE) and polyester or polyethylene terephthalate (PET). Film capacitors are widely used as signal coupling and decoupling capacitors in video, audio and radio applications, as well as for power supply smoothing and filtering.

ECQ-E12473KFB Application Field and Working Principle

The ECQ-E12473KFB is a PP film capacitor. It is mainly used for the energy storage in voltage equipment, general motor start and filter device, and other applications of DC and low-frequency AC applications. PP film capacitor has low dielectric loss and is suitable for high frequency and high current applications.

The working principle of the ECQ-E12473KFB film capacitor is based on the law of electrostatic attraction and repulsion, like that of an ordinary parallel-plate capacitor in which two conductors separated by a dielectric material form the capacitor plates. When voltage is supplied to the capacitor, electric charge is accumulated on the two plates. The charge stored in the capacitor is determined by the plate area and the dielectric material used between the plates. If the area of the plates and/or the dielectric material used is increased, then the amount of charge stored in the capacitor will also increase.

The ECQ-E12473KFB has a rated voltage of 400V and a capacitance of 0.0047uF. It is constructed of a PP film dielectric with copper-clad aluminum leads and metalized diaphragms, and is housed in an epoxy case. This device is suitable for AC and pulse applications in audio and noise suppression circuits. It also provides a high capacitance in a small and lightweight package.

The ECQ-E12473KFB also offers a number of features including standard electrical characteristics, good pulse handling capability, and a long product life. It has excellent resistance to heat, humidity and most solvents. It is also RoHS-compliant and UL-recognized.

In conclusion, the ECQ-E12473KFB PP film capacitor is a versatile and reliable component for use in various applications. It is well-suited for use in high-frequency applications requiring high capacitance values such as audio and noise suppression circuits. It also provides excellent electrical performance and a long product life.

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