MKP385320125JFM2B0

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Introduction

Film capacitors (also known as plastic film capacitors, Polyester capacitors, MKP385320125JFM2B0 capacitors) are a type of capacitor, typically constructed with one or more layers of plastic film as the dielectric medium, with metal electrodes on either surface and are used for electronic applications such as pulse circuits, timing circuits, energy storage applications, snubber circuits, high frequency applications, position sensing circuits, and electromagnetic interference filtering.

Application Fields

Film capacitors are mostly used in circuit applications where size is only one factor in the design. They are also used in applications such as signal filtering and smoothing, audio crossover networks, frequency discrimination, interference suppression, timing circuits, telecom systems, power supplies, switching regulators and resonators. Film capacitors are preferred in these applications because they offer excellent stability across temperature and humidity, and over time. Furthermore, film capacitors typically offer excellent capacitance stability and ripple current ratings, along with small size, light weight and reliable performance in high temperature, high humidity and harsh environments.

Working Principle

The MKP385320125JFM2B0 capacitor consists of an insulating plastic film, such as polyethylene terephthalate (PET), with copper electrodes bonded to each surface of the film. The electrodes serve to provide a connection and to concentrate electric field lines, and vary in shape, size, composition and number depending on the type and size of the capacitor.When the capacitor is connected to an AC voltage source, a dielectric field is created between the electrodes, and charges of opposite polarity accumulate on the surfaces of each electrode. An capacitance is created as a result of this electric field, and the magnitude of this capacitance is a function of the geometry of the electrodes and the dielectric material between them. The dielectric also serves to insulate the electrodes, providing a layer of insulation between the conductors.

Conclusion

The MKP385320125JFM2B0 capacitor is a film capacitor which is capable of providing excellent linearity and stability across temperature and humidity, along with small size, light weight and reliable performance in high temperature, high humidity and harsh environments. It is well suited to a wide range of applications, including signal filtering and smoothing, audio crossover networks, frequency discrimination, interference suppression, timing circuits, telecom systems, power supplies, switching regulators and resonators.

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