BFC246816275

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Film Capacitors

Film capacitors, also known as polyester capacitors or dielectric film capacitors, are constructed with metal foil, sometimes multiple layers for each plate, with a thin film of polyester insulation between them. The insulation prevents electrical leakage, and the air keeps the capacitance to a minimum. Initially developed in the early 1930s, film capacitors are one of the most stable and reliable capacitors available, offering long life, and low ESR (Equivalent Series Resistance).

BFC246816275 Application Field and Working Principle

The BFC246816275 capacitor is specifically designed for use in medical equipment, audio equipment, low-voltage power supplies, AC and DC motors, and inverters. It is available in a wide range of microfarads and tolerances, with a voltage rating of 250V DC and a temperature range of -40°C to +105°C. It also has an ripple current rating of up to 6200ARMS.

The BFC246816275 capacitor uses a polyester film as the dielectric material and is based on a metallic aluminium- or copper-foil double layer construction. The plates are rolled together and the plate-slot construction prevents the formation of short-circuits between each of the two separate plates, protecting against electrical breakdown. Moreover, the polyester film has excellent dielectric properties and helps to effectively insulate the plates.

The capacitor works by creating a stored charge between two surfaces made of an electrically conductive material, creating an electric field between them. The voltage between these two surfaces is called the capacitance, which is how much charge can be stored between the two surfaces. A thin layer of insulation separates the two surfaces, allowing the capacitor to store charge without allowing them to short circuit or come in contact with each other. When a current passes through the capacitor, the stored charge creates an opposing voltage, which is then stored in the capacitor.

The BFC246816275 capacitor is very lightweight and can handle a large variety of applications, with excellent reliability and long life due to its excellent dielectric insulation. It also has very low ESR and ripple current, and is suitable for high frequency AC applications. Furthermore, it has a wide temperature range, from -40°C to +105°C, which makes it suitable for use in extreme environmental conditions. The BFC246816275 capacitor also has a compact form and is available in a wide variety of different microfarads and different tolerances, offering great flexibility for a wide range of applications.

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