HR101R652M040AA2B

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Part Status:	Active

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are energy storing components consisting of an anode foil, a cathode foil and an electrolyte. The anode and cathode are typically layers of aluminum foil and an electrolyte, often aqueous stomach acid, are sandwiched between the two. When electric current passes through the capacitor, the capacitance and energy stored by the capacitor depend on the surface area of the aluminum foil, the thickness of the electrolyte and the amount of charge stored. Aluminum electrolytic capacitors are often seen in high-voltage, high-current applications.The HR101R652M040AA2B is an aluminum electrolytic capacitor, designed for applications such as linear power supplies, SMPS, inverters, and audio-visual equipment. It is based on a high-precision, long-life feature set that provides optimal performance in demanding applications.The HR101R652M040AA2B has a working voltage rating of 25 VDC and a rated capacitance of 1000 µF with a peak surge allowance of 1.1 VDC. The HR101R652M040AA2B features a long-life series of design parameters, allowing for use in demanding applications where high-precision applications are essential. It has a high ripple current rating of 1.5VRMS, a low-ESR characteristic of less than 20 mOhms, and a temperature coefficient of ±10%. It can handle up to 125°C of ambient temperature and an ESR of less than 1 mOhm.The working principle of an aluminum electrolytic capacitor is based on the principle of polar capacitance. It takes advantage of the capacitance of polar liquids, which is called the "dielectric constant". The dielectric constant is the measure of how much electric field is stored in a given unit volume of the material. When an electric field is applied to the aluminum foil, its dielectric constant increases, thus straining it and building up an energy load. To store as much charge as possible, this charge is released and stored within the electrolyte layer.This charge build-up leads to a rise in the voltage across the capacitor which is similar to that of a battery. This voltage buildup is limited by the amount of charge available in the electrolyte layer. As current passes through the capacitor, the voltage across the capacitor decreases as the stored charge is released.The HR101R652M040AA2B aluminum electrolytic capacitor is an efficient component for many high-voltage, high-current applications. Its high ripple current rating, low-ESR characteristic, long life and temperature coefficient of ±10% make it suitable for use in high-precision, demanding applications often seen in linear power supplies, SMPS, inverters, and audio-visual equipment.

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