MKT1820533064G

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Film Capacitors

Film capacitors, also known as plastic film capacitors, plastic dielectric capacitors or polymer film capacitors, are capacitors that use various plastic films as the dielectric material. This term refers to electrical components that offer little resistance to the flow of electrical charges.

Film capacitors are generally used for applications that require high frequency and high voltage conditions, such as televisions, electronics, and telecommunication equipment. They are also used in RF (Radio Frequency) and power supply filter networks as well as power line bypass capacitors. Film capacitors are available in different shapes and sizes and offer great stability over time and temperature, as well as counteracting fluctuations in voltage.

MKT1820533064G

The MKT1820533064G is a polyester film capacitor with a non-inductive winding, designed for use in various industrial and telecommunications applications. It has a rated voltage of 630Vdc and a capacitance of 4.7µF.

Application Field

The MKT1820533064G is primarily used for applications that require high frequency signals, such as motors, fluorescent lamps, anti-interference, radiation, switching power supplies, electronic ballasts, communication systems, and control circuits. It can be used in parallel circuits as part of a filter circuit. It is also suitable for DC/DC converters, automotive circuits, and high frequency power circuits.

Working Principle

A film capacitor works by having two plates (the electrodes) separated by a dielectric material (in this case, a film). When a voltage is applied to the capacitor, the electric field created in the dielectric material accumulates electric charge. Electrodes attract opposite charges from one another, resulting in a capacitance. The dielectric material is chosen based on the preferred characteristics, such as permittivity or breakdown voltage. The MKT1820533064G has plastic film insulation, which offers excellent resistance to voltages up to an extremely high limit.

The electrodes are also treated to reduce losses due to two effects: dielectric absorption and self-induction. As the charges accumulate in the electrode, they can be reabsorbed by the dielectric material, resulting in a loss of energy. This is known as dielectric absorption. Self-induction is an effect caused by the electrodes becoming magnetically charged when a voltage is applied. This can cause a loss of energy due to the resistance of the winding.

The MKT1820533064G is designed to minimize losses due to dielectric absorption and self-induction. It is also designed to reduce parasitic effects such as microphonic noise and stray capacitance. It is capable of withstanding high temperatures and is impervious to atmospheric elements and oil contamination.

Conclusion

The MKT1820533064G is a versatile and reliable plastic film capacitor that is suitable for a range of industrial and telecommunications applications. It is used to provide high frequency signals while offering low noise and high reliability. It is designed to be resistant to high temperatures, voltages, and contamination, and to minimize losses due to dielectric absorption and self-induction.

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