ERHA551LGC472MFD0M

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Aluminum electrolytic capacitors are a type of capacitor that employs an electrolyte as one of its electrode plates. They consist of two aluminum foils, separated by a paper separator, and covered with an electrolyte of aluminum oxide. These capacitors have the advantage over other capacitors of offering higher volumetric efficiency, along with a larger capacitance and voltage rating in comparison. Whereas other capacitors have one dielectric material between the electrodes, aluminum electrolytic capacitors use two materials, the electrolyte and the aluminum oxide on the electrodes.

ERHA551LGC472MFD0M is a particular type of aluminum electrolytic capacitor. It is a radial leaded type, with radial leads for termination and insulation. As most of the electrolytic capacitors, these capacitors have a liquid electrolyte, housed in the capacitor case and held by aluminum foil layers, thus providing a larger capacitance. Due to their relatively high capacitance values, these capacitors are ideal for power supply filter circuits and are used for smoothing or bypassing of high current pulses. These capacitors also help in the decoupling of AC and DC components in both analog and digital circuit applications.

In terms of working principle, the electrostatic capacitance of an aluminum electrolytic capacitor is formed through the attraction of positive ions of the electrolyte to the negatively charged aluminum foil. These two electrodes, the electrolyte and the aluminum oxide, are separated by a paper separator, which prevents the direct contact of the electrolyte and aluminum oxide. As a result, when a voltage is applied across the two electrodes, the positive ions move towards the negative electrode and accumulate near it. This accumulation of positive ions on the negative electrode creates an electrostatic field, thus forming an electric double layer and providing capacitance.

The size of the specific capacitor ERHA551LGC472MFD0M is 2.3mm x 6.3mm. The rated voltage of this capacitor is 4.7V and its capacitance is 0.1µF. This capacitor is suitable for applications such as filtering, bypassing, and smoothing, due to its relatively large capacitance. This capacitor is also highly reliable, despite its small size, and it can handle temperatures up to 85°C. Typical applications include audio equipment, dimmers, automotive electronics, and media players.

In conclusion, the aluminum electrolytic capacitor ERHA551LGC472MFD0M is a radial leaded type capacitor with a rated voltage of 4.7V and a capacitance of 0.1µF. This capacitor is suitable for applications like power supply filtering, bypassing, and smoothing. Apart from that, this capacitor is reliable, temperature resistant, and can be used in audio equipment, dimmers, automotive electronics, and media players.

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