B43508C9397M67

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Aluminum electrolytic capacitors are a type of capacitor made with a metal oxide film as an electrolyte. They are used in various automotive, industrial, audio, and telecommunications applications. B43508C9397M67 is a typically used type of aluminum electrolytic capacitor. It is usually specified with values of capacity, voltage, and ripple current.

Application field

B43508C9397M67 aluminum electrolytic capacitors are often employed in power supplies, voltage doubler and regulator circuits, motor start applications, RF and audio filter circuits, cathode ray tubes, deflection circuits, digital clocks and delay lines, mechanical timer applications, low voltage signal processing circuits, etc.

Working principle

The working principle of an aluminum electrolytic capacitor is based on a phenomenon called “charge transfer”. In such a capacitor, a thin metal oxide layer between the two metal electrodes acts as a dielectric. When voltage is applied to the capacitor, free electrons from the anode migrate through the metal oxide layer to the cathode, forming a space charge region. This space charge region opposes the field of the external voltage, forming a dielectric breakdown. The breakdown can result in displacement currents which can cause an increase in the capacitance of the device.

The capacitance of an aluminum electrolytic capacitor is directly related to the area of the electrode surface, the thickness of the metal oxide film, and the relative permittivity of the electrolyte. The capacitance of B43508C9397M67 aluminum electrolytic capacitor ranges from 0.0022uf to 470uf.

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