B81123C1472M189 Capacitors

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Film capacitors, also known as dielectric capacitors, are components that store electrical energy in the form of an electric field. They are widely used in a variety of applications, such as switching power supplies, low-frequency filtering, and telecommunications.

The B81123C1472M189 film capacitor is a non-polarized capacitor with an operating temperature range of -55 °C to +125 °C. It features high capacitance, low equivalent series resistance (ESR), low equivalent series inductance (ESL) and low electrical noise. It is available in a variety of sizes, voltages and capacitance ranges, making it suitable for a wide range of applications.

Application Field

The B81123C1472M189 is designed to provide reliable performance in demanding applications such as telecommunications, power supplies, automatic control systems, and audio and video equipment. It can be used for high frequency filtering, signal coupling, bypassing and noise suppression. It is particularly suitable for high frequency applications such as high speed signal transceivers, frequency synthesizers and clock signal generators.

Working Principle

Film capacitors are constructed from two parallel plates of highly conductive material separated by an insulator. The capacitance of the capacitor is proportional to the area of the plates and inversely proportional to the distance between them. When a voltage is applied between the plates, electrons are stored in a thin, dielectric film, causing the electric field between the plates to increase. This increase in electric field is what stores the electrical charge and allows the capacitor to act as a storage device for electric energy. This stored energy can then be released later when needed.

The B81123C1472M189 film capacitor utilizes a dielectric film that is designed to provide excellent electrical strength, high insulation resistance, and low ESR and ESL. The high insulation resistance reduces the amount of heat generated by the capacitor in the circuit, while the low ESR and ESL values ensure the capacitor is suitable for high frequency applications.

Overall, the B81123C1472M189 film capacitor is a reliable and versatile device that can be used in a wide range of applications. Its low Equivalent Series Resistance and low electrical noise make it ideal for high frequency filtering and signal coupling, while its high insulation resistance and wide temperature range make it suitable for demanding environments.

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