WMF05P47K

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Film Capacitors

Film capacitors (also known as metallized film capacitors, film dielectric capacitors, or plastic film capacitors) are constructed utilizing a very thin plastic film as the dielectric material, and then thinly and evenly metallized by a thin layer of aluminum or zinc. This metal is then coated with a protective layer of polyurethane, nitrocellulose, or acrylic material, providing a critical barrier to environmental contaminants.

WMF05P47K Application Field and Working Principle

The WMF05P47K is a film capacitor specifically designed for applications requiring an extended temperature range, high insulation resistance, superior voltage and current stability, and reliable operation. Applications include power factor correction systems and pulse-modulator circuits, as they are reliable and highly stable film capacitors, offering an exceptional frequency stability. The capacitance and the temperature coefficient of capacitance can both be tailored to the specific needs of the customer.

The working principle behind the WMF05P47K uses a plastic film as its dielectric medium. The film is based on polypropylene or polyester, and is metalized on the film surface with an extremely thin layer of aluminum or zinc. The thickness of this layer is designed to impart specific characteristics to the capacitor. Generally, the greater the thickness, the higher the capacitance value.

The other critical factor for the working of the WMF05P47K is the degree of metallization, which is related to the amount of metal applied. In general, the more metal applied, the higher the capacitance value. The effectiveness of this metal is also dependent on the shape at which it is applied. This includes both regular patterns, which include linear, square and hexagonal patterns, or irregular shapes.

The WMFO5P47K also utilizes an additional electrolytic oxidation layer to provide effective protection against environmental conditions, particularly when a high voltage level is applied. This additional layer enhances the protection and breakdown protection offered by the capacitors.

The operation of the WMF05P47K utilizes a plastic film sandwiching a thin metallized film. An essential battle against instability, corrosion and contamination is the use of a high-resistance and low-loss base material. The film capacitors offer an excellent stability over existing temperature and voltage conditions, making them ideal for applications that require a high degree of reliability and stability.

The strength of film capacitors relies heavily on the film dielectric utilized. Different film mediums can impart distinct characteristics which must be taken into account when selecting a specific capacitor. Therefore, the size of the film and the thickness of the metallized layer must be customized in order to achieve efficiency and effectiveness when utilized.

In conclusion, the WMF05P47K is a film capacitor that can be tailored to fit the specific needs of any customer, offering excellent reliability and stability across varying temperature and voltage conditions. It provides an effective protection against environmental issues, with an additional layer of electrolytic oxidation to guarantee excellent performance and minimal contamination.

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