PVC1182

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Film Capacitors

Film capacitors, also known as plastic capacitors, are electronic components using a thin dielectric foam or plastic film as the insulating material. In comparison to ceramic capacitors, film capacitors are able to provide greater volumetric efficiency. This makes them popular in medical, aerospace, and military equipment, as well as in computer, telecommunication, and consumer audio-video equipment.

One such type of film capacitor is the PVC1182, which is designed specifically for DC blocking and AC line coupling applications. Common in aerospace and military applications, the PVC1182 film capacitor is non-inductive and provides high insulation resistance and moisture resistance.

Application Field

The PVC1182 film capacitor is used mainly in applications involving high reliability, such as aerospace and military equipment. Its ability to block DC currents, while not influencing AC currents, makes it ideal for use in AC line coupling applications. Its insulation properties make it perfect for high-altitude applications such as aircraft and satellites. Its moisture resistance also makes it suitable for use in refrigerated storage and medical applications.

Working Principle

A film capacitor works on the same basic principle as other types of capacitors. It relies on a dielectric material (in this case, a plastic film) to store an electrical charge between two conductive plates. As with other types of capacitors, the amount of charge a film capacitor can store is determined by its capacitance value, which is calculated using the following equation:

Capacitance (C) = Dielectric constant times the area (A) of the electrode divided by the distance (d) between them.

In the case of the PVC1182, the dielectric is a polyvinyl chloride (PVC) film, which provides excellent insulation and energy storage capabilities. This makes the PVC1182 an ideal choice for applications like AC line coupling and high-altitude DC blocking.

The PVC1182 also has a high stabilizing temperature coefficient, which ensures that it won’t suffer from extreme temperature changes. This makes it suitable for use in applications involving wide temperature ranges. It also has an exceptionally low leakage current, which is a critical factor for applications such as medical equipment.

Overall, the PVC1182 is a reliable choice for applications requiring a reliable partner in DC blocking and AC line coupling. Its insulation properties are superior to those of ceramic capacitors, making it the ideal choice for aerospace and military applications. Its leakage current and temperature stabilization properties are also beneficial in a variety of other applications.

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