MKP1847560444Y5

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Film Capacitors

Film capacitors are passive components consisting of a thin plastic film or coated metal foil that serves as the dielectric layer for storing electric energy; a metal foil, which is the main electrodes; and a metal frame for mounting and connecting the two foils. Film capacitors are more reliable than ceramic capacitors due to their superior temperature stability, greater stability over time, and excellent dielectric loss.

The MKP1847560444Y5 is a type of film capacitor offering excellent performance for various applications. Its features include a wide temperature range (up to -55℃ to +125℃), high insulation resistance, high stability vs. temperature and time, and a wide range of voltage ratings from 50V for low voltage applications to 10kV for high voltage applications. Furthermore, it is also RoHS-compliant, making it suitable for a variety of applications even in green IT designs.

In terms of application areas, the MKP1847560444Y5 film capacitor is mainly intended for use in the following areas: dc/dc converters, energy-saving backlighting systems, switch mode power supplies, electronic ballasts for lighting applications, and smart grid asynchronous compensation systems. These capacitors are also suitable for applications in audio circuits, medical applications, automotive and aerospace applications, and any other application that requires high temperature stability and high reliability.

Working Principle

Film capacitors use two thin layers of thin film, one as the dielectric, and the other, the bottom layer, as the plate. This arrangement makes it possible for electric charges to accumulate on the surfaces of one or both layers when a voltage is applied across the plates. This accumulation of charges increases the capacitance of the device and the current flowing through the capacitor is controlled by the capacitance.

The two plates are insulated from each other, resulting in a relatively high insulation resistance. The high insulation resistance helps ensure that the charges do not dissipate easily and remain stored for a longer time. This makes the MKP1847560444Y5 an ideal choice for applications requiring high reliability.

The film capacitor also provides a predictable impedance value over a wide range of frequencies and temperatures. This is attributed to its high self-healing properties which prevents any decrease in capacitance due to short circuits or resistance buildup. Due to its small size and lightweight, the MKP1847560444Y5 is also suitable for various applications where space and weight are at a premium.

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