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Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor is an electronic component composed of two electrodes, usually aluminum foil, and an electrolyte impregnated paper or foils as a separator, which can store electrical energy, and is typically used as a filter or bypass capacitor in power supplies. The B41505A3339M000 belongs to this class of capacitors, which is characterized by a high capacitance and low equivalent series resistance (ESR).

Application Field

The B41505A3339M000 is an aluminum electrolytic capacitor with radial lead, which is suitable for line decoupling and can be applied in various situations, such as power supply for linear Voltage regulator, used in main power of DC / DC converters, bypass or coupling capacitor in power converter circuits, ripple filter or bypass capacitor in digital circuits, board level capacitors in audio power amplifiers, etc.

Working Principle

The capacitor is composed of a series of two parallel plates coated with an electrolyte impregnated paper or foil between them. One of the plates is connected to the positive terminal of the capacitor, while the other is connected to the negative terminal. The two plates have a voltage difference between them, and the electrolyte stores electrical charge between them. When an alternating current is applied to the capacitor, the current flows in one direction, one plate is charged positively and the other negatively. This causes a flow of electrons from the positive to the negative plate. When the current reverses direction, the current flows in the opposite direction.

The capacitor’s dielectric material supports the continuous transfer of charge between the plates, and the capacitance can be adjusted by changing the area of the plates, the distance between the plates, and by changing the permittivity of the electrolyte. The B41505A3339M000 can store a large amount of charge due to its large capacitance, and its ESR is relatively low. These features make the B41505A3339M000 suitable for line decoupling applications.

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