MKP386M540070JT4

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Film Capacitors

Film capacitors are electronic components that are based on plastic film technology and also referred to as plastic-film capacitors or film dielectric capacitors. They are one of the oldest types of electronic components, but their superior performance still makes them widely used today. The MKP386M540070JT4 is a type of film capacitor that is very versatile and suitable for use in a variety of electrical and electronic applications.

The MKP386M540070JT4 is a DC-biased film capacitor that is designed for operation in a wide range of frequencies, from 300 kHz to 2 MHz. It is available in non-polarized and aluminum electrolytic configurations and is a RoHS-compliant device. The main features of this capacitor are its excellent frequency characteristic, low ESR, high temperature stability, and high thermal shock resistance.

The main construction of this capacitor consists of a polyester, polypropylene, or other plastic film, which serves as the dielectric material between two metalized electrodes. These electrodes are zinc-coated aluminum layers that are separated by a paper dielectric layer on each side of the plastic film. This design helps to prevent electrical leakage between the electrodes and ensures high dielectric strength.

The MKP386M540070JT4 capacitor has a wide range of applications, such as in power supplies, AC/DC converters, and electronic circuits. It is also used in automotive electronics, home electronics, LED drivers, and lighting fixtures. Its low ESR and frequency characteristics make it ideal for use in high-frequency switching applications. Additionally, its high temperature stability, high dielectric performance, and reliability make it suitable for harsh environment applications.

The working principle of the MKP386M540070JT4 is relatively simple and straightforward. When a voltage is applied to the two metalized electrodes of the capacitor, an electric field is created in the plastic film that serves as the dielectric. This electric field causes the electrons to be attracted to the electrodes, thus creating an opposing electric field. This creates a pair of oppositely-polarized electric fields that produce the capacitance of the device. This capacitance is determined by the size and area of the plastic film, the distance between the electrodes, and the dielectric properties of the material.

In conclusion, the MKP386M540070JT4 film capacitor is a versatile and reliable device that is suitable for a wide range of applications. It is an ideal choice for high frequency switching and harsh environment applications due to its low ESR, high temperature stability, and high dielectric performance. The working principle of this device is fairly straightforward, as it relies on the electric field produced by the voltage applied to the electrodes to create the capacitance.

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