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Aluminum Electrolytic Capacitors

400PK47MEFC16X25 Application Field and Working Principle

Aluminum electrolytic capacitors are one of the most widely used capacitors due to their excellent energy density and low cost. This type of capacitor contains two aluminum plates with an oxide-coated dielectric on one surface and an electrolyte at the other. This type of capacitor consists of a cylindrical aluminum case with two sticky end terminals connected to ends seals of the dielectric. The center of the capacitor is filled with electrolyte.

The capacitance of aluminum electrolytic capacitors is affected by several factors. Depending on the dielectric thickness, the temperature of the electrolyte and the external pressure, the capacitance will vary. This can range from a few pico-Farads to several micro-Farads. The largest capacitors can even exceed 1 Farad.

There are two types of electrolysis, cathodic and anodic. The cathodic type consists of a positive and negative charge on the plates while the anodic type consists of an alternating positive and negative charge. The electrodes of an aluminum electrolytic capacitor are typically made from aluminum foils that are sandwiched between two layers of insulation. The corrosion of the metal electrodes in combination with the electrolyte serves as the charge carrying medium. In other words, the electric charge is held between the two metal electrodes and the electrolyte.

The 400PK47MEFC16X25 is an anodic type aluminum electrolytic capacitor. It is a radial leaded device with non-solid electrolyte. It is a small size, low impedance, low voltage and long life capacitor. It has applications in a wide range of power supplies and signal processing circuits. The low-impedance characteristic makes them suitable for power supply and DC/DC conversion. It can also be used in power line filter circuits and for energy storage.

The 400PK47MEFC16X25 is an extremely small non-solid electrolytic capacitor. It is constructed with a ceramic bottom plate and an etched silver top. This design helps to reduce the size of the capacitor while providing excellent electrical and mechanical capabilities. This capacitor uses a non-solid electrolyte to increase its capacitance and reduce its ESR. Furthermore, due to its low temperature and non-polarized construction, this capacitor can be safely connected in reverse polarity as well as in parallel.

In summary, the 400PK47MEFC16X25 is a small size, low impedance, long life anodic aluminum electrolytic capacitor that is suitable for power supply and DC/DC conversion circuits. It is primarily designed for energy storage and power line filter applications, but can also be used in other circuitry. It has a low temperature, non-solid electrolyte construction and can safely be connected in reverse polarity as well as in parallel connections.

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