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Film Capacitors: MMK5222K63J01L16.5TR18 Application Field and Working Principle

Film capacitors are an important electronic component consisting of two or more capacitors. They are also known as metallized film capacitors, tin-film capacitors, plastic-film capacitors, PEN film capacitors and so on. These capacitors are flexible, stable in performance and reliable, making them commonly used in many products, such as air conditioners, washing machines, household appliances, industrial automation, and new energy vehicles.

MMK5222K63J01L16.5TR18 Application Field

MMK5222K63J01L16.5TR18 comprises an epoxy-coated aluminum case that encloses two pieces of polypropylene film having electrodes and a dielectric. This structure of the capacitor interacts electrically with other components, allowing it to act as a component in various electronic devices. The polypropylene film (PP) used in MMK5222K63J01L16.5TR18 gives the component a temperature coefficient of about -3/1000/K which enables it to remain relatively stable over a temperature range of -40 °C to + 125 °C. This means it is suitable for use in many industrial and consumer applications, such as auto-electronic, vibrating power and supply instruments, microwave ovens, smart TVs, medical equipment, motor-driven systems and strategic military technology.

Working Principle

In principle, a circuit containing a film capacitor is exactly the same as a classic capacitor in which two metal plates are separated by an insulator termed a dielectric. When a voltage potential or potential difference is applied across the two electrodes of the PP film capacitor, extra electrons will accumulate on one plate, creating an electric field across the two plates. This field will then produce an attractive force between the two plates, and electrons stored on one plate will be attracted to the other. This accumulation of electric charge will take the form of an electric current flowing through the loop created by the capacitor and other circuit elements, giving the overall system energy and current stability.

The amount of electrical energy stored in a film capacitor is determined by the thickness of the film, the area of the film, the dielectric constant of the film, and the voltage applied to the two electrodes of the film. Since the film is much thinner than electrolytic capacitors or ceramic capacitors, the latter two types of capacitors can typically store a much higher charge than film capacitors, while film capacitors can typically store a much larger current compared to the other two types of capacitors. This difference in electrical characteristics between the three types of capacitors makes film capacitors ideal for applications that require high stability of current and/or voltage.

Overall, the MMK5222K63J01L16.5TR18 is a high-performance and reliable film capacitor which can be used in a wide range of applications. This versatile capacitor is designed to provide advantages over other types of capacitors in terms of low power loss, low dielectric absorption and excellent stability under temperature changes. The PP film used in the construction of this capacitor helps it to exert a temperature coefficient of about -3/1000/K, enabling it to remain relatively stable over a temperature range of -40 °C to + 125 °C.

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