B32529C1472J000

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Film Capacitors

Film capacitors are a type of capacitor that uses thin plastic film as the dielectric. They are usually small and use the same materials as film resistors. Film capacitors are classified according to their dielectric materials, including Mylar, polystyrene, polypropylene, poly(phenylene sulfide), polycarbonate, polyester, polyvinylidene fluoride, and polyimide. Film capacitors also come in different forms, such as flat package, cylindrical package, radial leaded and axial leaded.

The B32529C1472J000 is an axial film capacitor, manufactured by the EPCOS (formerly Siemens) company. It has a capacitance of 0.047 µF and a voltage rating of 250 VAC. It is ideal for use in noise suppression, power supply bypassing, coupling, snubbing and decoupling applications.

Working Principle

A film capacitor works in a similar way as other capacitors. When a voltage is applied across the terminals of a film capacitor, the dielectric material (called the dielectric) inside the capacitor becomes polarized, allowing it to store energy in an electric field. This electric field produces a capacitance, which is the measure of the amount of electrical charge that a film capacitor can store.

A film capacitor is made up of two thin coil-wound electrodes made from metal foil. The dielectric is sandwiched between these foil electrodes and separated from them by two thin layers of plastic. The dielectric material is usually polypropylene or polyester. When a voltage is applied to the capacitor, the electric field causes the dielectric material to become polarized, or to move its electrical charge. This creates an electric field which stores energy in the form of an electric charge. The greater the capacitance of the capacitor, the more charge the capacitor can store.

Application Field

The B32529C1472J000 is an axial film capacitor that can be used in a wide variety of applications, including snubbing and noise suppression, coupling, power supply bypassing and decoupling. It is mostly used in automotive, industrial, telecom, and consumer electronics applications.

The B32529C1472J000 can be used in signal line noise suppression and signal line filtering, as well as voltage stabilizing, power supply filtering, power factor correction and other power regulation applications. The capacitor has a relatively low dielectric absorption ratio as compared to other types of film capacitors and offers low ESR and ESL values.

In consumer electronics, the B32529C1472J000 can be used in applications such as audio, digital video and entertainment equipment. It is also used in the filtering and complete control of high voltage lines in professional audio equipment and power supply systems.

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