MKP1845533256

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Film Capacitors

The term “film capacitor” is an internal generic name. The physical construction and the electrical properties of different film capacitors are related to the selection of different types of dielectric materials, such as polyethylene, polypropylene, polystyrene, and Mylar.One of the most common types of film capacitor is polypropylene film capacitor, referred to as “MKP1845533256”.

MKP1845533256 is a polypropylene film capacitor with a medium rating. It features a polypropylene dielectric film, spiral metalized electrodes, an aluminum foil layer and a non-woven web. It’s also highly temperature stable and can handle high voltage up to 1KV.

Application fields

Due to its excellent electrical characteristics, MKP1845533256 can be commonly used in various fields, such as high frequency switching power supplies, household appliances, automotive electronics, lighting equipment, instrumentation, etc.

Specifically the capacitor is suitable for high frequency electronic balancers, PFC circuits, consumer electronics, automotive electronics, AC and DC line filters for low frequency circuits and radio frequency circuits for onboard radios. It\'s also suitable for output filters in switching power supplies, as well as energy-saving lamps, CFLs, LED drives, ballasts, strobe control boards, etc.

Working Principle

The working principle of the MKP1845533256 film capacitor is similar to that of other capacitors. When a potential difference is applied between two electrodes, the internal dielectric becomes polarized in the same direction. The opposed polarities on the two electrodes cause an electric field in the capacitor. The magnitude of this electric field is related to the material, size, and shape of the electrodes, as well as to the electric field of the dielectric material between the electrodes.

The capacitance of the MKP1845533256 film capacitor is determined by the surface area, distances of the electrodes and the material of the dielectric. As the electric field in the capacitor increases, the current in the capacitor increases as well, and this process is known as charging. When the voltage is removed, the capacitance will start to discharge, the current will decrease and the voltage between the two electrodes also returns to zero.

When electrical energy is supplied to the MKP1845533256 film capacitor, electrons move through the dielectric material to the electrodes. During this process, the electric field of the dielectric material is polarized in the same direction. After the electric energy is removed, the polarization of the electrodes returns to zero and the capacitance resumes its original state.

Therefore, the MKP1845533256 film capacitor is able to maintain a capacitance and store energy, and it is a good choice for many electronic applications due to its stable performance and high voltage rating.

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