MKP385182200JDA2B0

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Film capacitors come in several varieties and can be broadly categorized as metalized film capacitors and film capacitors. MKP385182200JDA2B0 is one of the metalized film capacitors with the capacity of 2200pF and voltage of 500V.

The MKP385182200JDA2B0 belongs to the PPMK series (Polypropylene Metallized) of metalized capacitors. It is mainly used in DC circuits, such as DC-DC converters, switch mode AC-DC power supplies, LED lighting, and harmonic filters for motor drives.

Metalized film capacitors are usually preferred over other types of capacitors due to their low ESR (equivalent series resistance), low ESL (equivalent series inductance), and high current capacity. Their dielectric material is usually polypropylene film, highly flexible and good for high frequency applications.

The MKP385182200JDA2B0 has a large temperature range from -55°C to +105°C, making it suitable for applications under extreme temperature changes. It also has a self-healing characteristic due to its lower breakdown voltage, which prevents the device from failing due to short circuit or other faults.

The working principle behind metalized film capacitors is simple. When a voltage is applied to the device, electrons are attracted to the metalized layer, where dielectric material is very thin, allowing for a higher capacitance. As the voltage increases, the metalized layer becomes thinner and the capacitance decreases. The reverse occurs when the voltage is reduced; the metalized layer thickens and the capacitance increases.

In conclusion, MKP385182200JDA2B0 is a low-loss and high-current capacity metalized film capacitor that is highly suitable for DC applications, including DC-DC converters, switch mode AC-DC power supplies, LED lighting, and motor drive harmonic filters. Its self-healing characteristic further ensures a longer lifespan. The working principle behind metalized film capacitors is relatively simple, requiring just a voltage to be applied to achieve a certain capacitance.

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