SFT37T80K391B-F

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Film capacitors, also known as plastic film capacitors, film dielectric capacitors, film-foil capacitors or polymer film capacitors, are a type of capacitor. They are made by stretching a thin plastic film such as polyester, polypropylene, polycarbonate, PEN, PPS, PTFE, nylon and acrylic to allow a wide range of capacitance versus voltage values.Film capacitors are used in a wide range of applications such as high-frequency signal coupling in electronic audio equipment, voltage re-distribution in power conversion systems, energy storage and filtering in switch-mode power supplies, as well as for high-frequency effects in electric guitar amplifiers.

SFT37T80K391B-F Application Field and Working Principle

The SFT37T80K391B-F is a film capacitor that is a one-piece, dust-proof type capacitor for use in motor run capacitors. The capacitor features three windings, and a capacitance of 0.39 uF at an operating frequency of 50 Hz and 1 440 VAC, making it an ideal solution for applications such as motor run capacitors, fan capacitors, and other general purpose applications.

The SFT37T80K391B-F consists of three major components: an electrolyte, an insulating dielectric film, and conductive plates. The electrolyte is a liquid that acts as a conductor between the two conductive plates, allowing electrical current to flow through the capacitor. The dielectric film acts as an insulator and helps store an electrical charge between the two plates. The two conductive plates are sandwiched between the dielectric film and the electrolyte. When a voltage is applied to the plates, it causes the molecules in the dielectric film to shift and creates an electric field which stores energy.

When the voltage is removed, the electric field collapses, allowing the stored energy to be released. The amount of energy stored is proportional to the capacitance of the capacitor, which is determined by the size, dimensions, and thickness of the plates and the dielectric film, as well as the type of electrolyte used.

The SFT37T80K391B-F is an ideal choice for motor run capacitors. Due to its high temperature stability and low leakage current, it can be used in a wide variety of applications. The film capacitor also offers excellent protection from high surges, making it suitable for use in motor control and other high-performance applications.

In summary, the SFT37T80K391B-F film capacitor is an ideal solution for applications requiring high temperature stability and low leakage current. With its dust-proof construction and reliable performance, it is an ideal choice for motor control and other demanding applications.

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