BFC238310473

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BFC238310473 application field and working principle

Film capacitors are a type of capacitor that depends on thin insulating film for their structure and electrical insulation. Depending on the type of dielectric used, these capacitors can be divided into different categories such as polyester, metallized polypropylene, ceramic, paper, Teflon, Mylar, etc. Films can be deposited directly onto various substrates such as paper, plastic, etc. to form the required capacitance. They are used in a variety of fields, such as power supplies, lighting, communication systems, computers, automobile electronics, instrumentation, protection systems, etc.BFC238310473 film capacitors belong to the metallized polypropylene film capacitor type and, as mentioned above, they are mainly used in power supplies, lighting, communications, computer, automobile electronics, and other applications. This type of capacitor provides high stability when operated under extreme temperatures, humidity and shock, it also has a low dielectric absorption property and a low dissipation factor.The actual working principle of film capacitors is virtually the same as that of other types of capacitors. Basically, it consists of two metal or conductive plates (electrodes) separated by an insulating dielectric film. When the capacitor is connected to a voltage source, electric charges are accumulated onto the conductive plates, and the dielectric material prevents the electric current from transferring from one plate to the other. As the charges accumulate, an electric potential difference is created between the plates, which is called the ‘capacitance’.In order to increase the capacitance of a film capacitor, its size needs to be increased, as they are intrinsically small because of the thin dielectric film used. This fact is also useful to increase the load capability of the capacitor without necessarily increasing its size. This type of capacitor is usually used at lower frequencies, such as in the range of 300 kHz– 30M Hz, and works best at temperatures of between -40ºC and +105ºC. The advantages of using film capacitor in power electronics applications, such as in motor drives, consist in their low cost in comparison to other capacitor types, their high stability, low losses, low inductance and their long life expectancy. In addition, film capacitors are typically very small in size, which makes them suitable for use in circuits with a space constraint.In conclusion, film capacitors, and particularly the BFC238310473 film capacitor, are an essential component used in many electrical and electronic systems or devices, due to their good performance and wide range of applications. They can operate under extreme temperature and humidity conditions and provide low losses, high stability and long life expectancy.

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