DSF050J153

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DSF050J153 Application Field and Working Principle

Film capacitors, also known as Plastic Film Capacitors, are a type of capacitor that use organic films for the dielectric, ideal for high-frequency applications with relatively low working voltages. The DSF050J153 is a type of film capacitor that comes as a standard version with long-term guarantee for retaining main performance characteristics.

The basic design of the DSF050J153 film capacitor consists of polyester film, aluminium foil, and a sealed epoxy resin cover. The aluminium foil acts as the electrodes to conduct electric current, whilst the polyester film acts as the dielectric material and the epoxy resin acts as a shield layer and an insulator.

Application Field

The DSF050J153 film capacitor has a wide range of applications such as coupling, by-pass, pulse or sampling circuits, as well as AC/DC convertor, signal detection and demodulation, high frequency filtering, and micro-wave switching circuit. It is also widely used as power inverters, switching mode power supplies, surge arresters, communication equipment, rectifiers, fluorescent lamps, etc.

It benefits from low losses at high frequencies, wide operation temperature and high reliability which make it a preferable capacitors for in many cases including medical, automotive, military and avionics.

Working Principle

As the name suggests, film capacitors use a dielectric formed from plastic film. The film can consist of either polyester film, which is generally used for smaller capacitances, or polypropylene, which is generally used for higher capacitance applications.

When voltage is applied to the aluminium foil acting as the electrodes of the capacitor, the polyester dielectric material will cause the electric field to polarize, thus creating electric charges and causing an electric current to flow. This current results in a transfer of energy in the form of electric charge, which is stored in the polyester film.

This storing of energy in a film capacitor is the basis of the working principle of the DSF050J153. The capacitor is capable of storing relatively large amounts of energy in a very small space, making it ideal for applications where space is a premium.

The film is also effective at filtering out high-frequency signals and simultaneously having low losses at high frequencies. This improved frequency response makes the capacitor ideal for high-frequency applications.

Conclusion

The DSF050J153 film capacitor is a reliable and efficient capacitor for use in a wide range of applications. Its low losses at high frequencies, wide operation temperature and high reliability make it preferable in many cases including medical, automotive, military and avionics. The simplicity and effectiveness of its design makes it ideal for use in high-frequency applications such as coupling, by-pass, pulse or sampling circuits, AC/DC convertor, signal detection and demodulation, high frequency filtering, and micro-wave switching circuit.

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