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Film Capacitors

Film capacitors are a type of capacitor which utilizes thin plastic films as the dielectric instead of the more common ceramic or paper. The structure of the film capacitors allows for a higher capacitance per unit volume than other types, making them an attractive option for compact electronic applications. F1778522K2KLB0 capacitors are constructed using layers of our trademarked X7R dielectric material and are available in both radial and axial configurations.

Application Field

F1778522K2KLB0 capacitors are designed to provide increased capacitance and reliability for high-current applications. They are ideal for use in high-power switch mode power supplies, resonant and snubbing circuits, motor drives, and signal and power conditioning. These capacitors are well-suited for high-power applications since the X7R dielectric provides excellent capacitance stability and reliability over a wide range of temperatures and frequencies.

The F1778522K2KLB0 capacitors work exceptionally well in applications where there is a large amount of current switching, such as in DC-DC converters, motor drives, and LED lighting. Their high capacitance enables them to provide the necessary filtering to control voltage and reduce ripple. In addition, the X7R dielectric provides higher dielectric strength, allowing the capacitors to handle higher voltages.

Working Principle

The F1778522K2KLB0 capacitors use thin plastic films as the dielectric instead of the usual ceramic or paper. The films are constructed of layers of our trademarked X7R dielectric material which is heat resistant, and highly stable over a wide temperature range. The thin construction of the films allow for a higher capacitance than other types, making the capacitors well-suited for high-current applications.

The capacitance is produced by two layers of metal, usually aluminum oxide, which are separated by the X7R dielectric material. When a voltage is applied between the two metal layers, an electric field is created. This creates an electric charge on the interfaces between the metal layers and the dielectric material which produces a capacitance. The capacitors are able to maintain their capacitance over a wide temperature range, which is a key benefit of X7R dielectric material.

The F1778522K2KLB0 capacitors are able to provide high capacitance at low capacitance per volt. This makes them a great choice for high-current applications where they must be able to provide high capacitance over a wide temperature range. In addition, the X7R dielectric allows the capacitors to handle higher voltages and currents, offering enhanced safety and reliability in these applications.The specific data is subject to PDF, and the above content is for reference