MKT1813510066R

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Film Capacitors

Film capacitors, also known as foil capacitors, are devices most commonly used for signal filtering or DC blocking applications. A film capacitor is an electronic component consisting of two conductive surfaces separated by an insulating film. A thin oxide layer is often applied to increase the dielectric strength, reduce cross-talk between layers, and provide protection for the surfaces.

The MKT1813510066R is a radial-leads, polyester film capacitor. Its dielectric material consists of polyester (Mylar) film, and its construction allows for reliable operation even in harsh environmental conditions. It is designed for use in a variety of applications, including power electronics, industrial electronic equipment, lighting and telecommunications.

Application Field: The MKT1813510066R is used primarily in AC/ DC power supplies, such as the power conversion stages of consumer electronics and industrial products. It is also suitable for signal filtering, power conversion, and as an AC blocking capacitor in DC circuits, for example, in photovoltaic panels. The MKT1813510066R has a voltage rating of 630Vrms and a maximum capacitance of 22μffarad.

Working Principle: A film capacitor consists of two conductive surfaces between which a dielectric material is placed. The dielectric material is usually an organic film such as polyethylene terephthalate (PET), or a ceramic material like barium titanate. As voltage is applied across the two conductive surfaces, the dielectric material undergoes a breakdown, allowing current to flow. This effect is known as polarization, and the amount of current that is able to flow between the two surfaces is determined by the dielectric strength of the material. The resulting current is proportional to the voltage applied across the capacitor.

Once the polarization has occurred, the current through the capacitor is mainly determined by the capacitance of the device. Capacitance is a measure of the amount of charge stored per volt of applied voltage. Film capacitors have high levels of capacitance, which means they can store large amounts of charge, and therefore have high capacitive reactance. This means that they are excellent at blocking high-frequency signals. This is why film capacitors are often used in AC/ DC power supplies, signal filtering, and as power conversion stages in consumer electronics and industrial products.

Film capacitors are also preferred for their temperature resistance compared to other types of capacitors, making them suitable for use in a range of applications. The MKT1813510066R is particularly well-suited for use in harsh environments, such as in higher temperatures or in extreme climates. The device features excellent temperature cycling characteristics, allowing it to maintain reliable operation even in the most challenging conditions.

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