225PHC400K

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Film capacitors, also known as polyester capacitors and plastic film capacitors, are a type of electronic capacitor that uses plastic film as its dielectric medium. They are constructed bydielectrically segregating electrical layers by multiple layers of plastic film, in a manner essentially like that of paper capacitors.The 225PHC400K is a polyester film capacitor with an overall diameter of 4mm, making it an ideal choice for applications where there\'s limitedsspace available for installation. This capacitor has a capacitance range between 0.01μF and 470μF, a voltage capability of 250V and a rated voltage of 400V. Its temperature range is between -40°C and 85°C, and loss factor of 0.6%.The main applications of the 225PHC400K are in frequency compensation, signal coupling, bypassing, high frequency switchgear, AC motorstarting and DC DC converters. It is also suitable for digital and analog circuits with low noise and low dissipation.The working principle of the 225PHC400K is based on a dielectric medium – the material separating the plates of the capacitor. In this case, it\'s a polyester film between two metal or aluminum layers that forms the plates of the capacitor.When a voltage is applied across the plates, a charge begins to accumulate on the plates. The electric field caused by the accumulation of charges creates an attraction between the plates, creating an electric dipole which stores electrical energy in the capacitor. The capacitor then releases the electrical energy as the voltage across the capacitor is reduced or reversed.The amount of energy stored in a capacitor is determined by its capacitance, which is expressed in Farads (F).The capacitance of the 225PHC400K will depend on the thickness and dielectric constant of the dielectric material – in this case the polyester film.The efficiency of the capacitor also depends on the factors mentioned above, as well as the size and shape of the plates. The size and shape of the plates affects the amount of electrical field created and thus affects the effectiveness of the capacitor.The 225PHC400K uses advanced polymer film construction to deliver superior capacitance and voltage performance. The combination of advanced polymer dielectric materials and the excellent construction of the 225PHC400K ensures reliable operation and long life under rigorous environmental conditions. It is also very heat resistant, making it well-suited to applications in environments with wide temperature variations.In conclusion, the 225PHC400K is a polyester film capacitor with a capacitance range between 0.01μF and 470μF, a voltage capability of 250V and a rated voltage of 400V, and a temperature range of -40°C to 85°C. It is suitable for digital and analog circuits with low noise and low dissipation, and is used mainly for frequency compensation, signal coupling, bypassing, high frequency switchgear, AC motor starting and DC DC converters.It is an ideal choice for applications where space is limited and its advanced polymer construction ensures reliable performance and long life. Its heat resistance and excellent performance makes it a reliable and preferred choice in a wide range of applications.

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