B32621A6222K189 Capacitors

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Film Capacitors

Film capacitors, also known as polyester, plastic or dielectric film capacitors, are capacitors made with thin flexible films as the dielectric, usually polyester, polypropylene or polycarbonate films. Film capacitors have a wide range of application fields, including voice & signal processing, computer peripherals, radio communications, studio & broadcast audio, medical instruments, power conditioners, inducstion heating, lighting, and electric power. Polyester film capacitors tend to be applied more frequently in audio applications, polypropylene film capacitors are often applied in more high frequency applications, while polycarbonate film capacitors are most commonly used as DC blocking capacitors because of its low dielectric constant.

B32621A6222K189 Application Field

The B32621A6222K189 polyester film capacitor is primarily intended for signal and general signal coupling purposes, for suppressing or blocking high-frequency interference, for signal and power line bypassing, snubbing and line-by-line capacitance applications. The capacitor can also be used in a variety of switching power supply applications, such as in filters, to reduce or eliminate interference, or for boosting performance or boosting efficiency. It is an excellent choice for any high-frequency signal or power conditioning.

B32621A6222K189 Working Principle

The B32621A6222K189 working principle is based on the principles of capacitance, which is a measure of the electric charge stored between two conductors in an electronic circuit. A capacitor consists of two conductors separated by an insulating material, often referred to as a dielectric. When an electrical voltage is applied to the two conductors, an electric field is created which causes a charge to be stored between the two conductors. This charge is then used by the capacitor to store energy, allowing current to flow in and out of the capacitor. This process of charging and discharging is what gives the capacitor its title of a "filter" as it filters out any unwanted high-frequency signals.

The B32621A6222K189 is constructed from two thin polypropylene thin film layers to form a single dielectric layer with a very low dielectric constant, giving it excellent characteristics for use in high-frequency signal or power conditioning applications. It has a high total capacitance value, a low ESR (Equivalent Series Resistance), and a high breakdown voltage, making it an ideal choice for a wide range of applications. The thin film layers are encapsulated in a plastic body together with terminals, sealant and solder, while the entire unit is hermetically sealed in a metal can.

The B32621A6222K189 is a reliable and durable option for signal and power conditioning applications as its low ESR and high capacitance values allow it to effectively filter out unwanted signals while also providing efficient energy storage. Furthermore, the robust construction of its metal can housing helps to ensure that the capacitor is protected from vibrations and shocks, making it an excellent choice for use in a wide range of applications.

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