MAL203859109E3

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Aluminum Electrolytic Capacitors (AECs) are widely used in various fields due to their advantages in terms of size, cost and performance. One of the most common AECs is the MAL203859109E3. This capacitor has a capacitance value of 220µF and an operating temperature range of -40℃~+125℃.

The MAL203859109E3 is typically used in DC power supply circuits, high performance speaker circuits, electric appliances, and motor drives due to its combination of large capacitance and high voltage tolerance. It is also capable of suppressing large inrush currents and is well suited for use with switching power supplies since it exhibits very low ESR values at high frequencies. In addition, it can also be used for storing energy and protecting against transient over-voltage.

The working principle of the MAL203859109E3 is similar to that of other AECs. It consists of aluminum foil (anode) and paper (cathode) separated by an electrolyte. A voltage applied to the terminals of the capacitor causes a charge to accumulate on the aluminum foil, which creates an electric field that attracts and holds carriers (ions) in the electrolyte between the anode and cathode. This creates a physical barrier, which stores and releases electrical energy.

The electrolyte acts as the dielectric of the capacitor and determines its maximum capacitance. The higher the dielectric constant, the higher the capacitance of the capacitor, and therefore the greater the energy storage capacity. The dielectric also affects the ESR, the ESR determines the damping effect of the capacitor in the resonance circuit, and the higher the ESR, the better the performance of the capacitor.

In conclusion, the MAL203859109E3 is a high-performance aluminum electrolytic capacitor which is widely used in many applications. Its combination of large capacitance and high voltage tolerance contribute to its popularity. Its operating principle, based on the accumulation of charge on aluminum foil between anode and cathode, makes it capable of storing and releasing energy efficiently.

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