MAL215055331E3

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Aluminum electrolytic capacitors, commonly known as electrolytic capacitors, are polarized polarized capacitors which mainly consist of anode aluminum foil, anode oxide film, non-solid electrolyte and cathode foil. The MAL215055331E3 is a kind of aluminum electrolytic capacitor which is mainly used in switching power supply and circuit filter and so on. The following article will mainly introduce the application field and working principle of the MAL215055331E3.

Application Field of MAL215055331E3

The MAL215055331E3 is a kind of low-ESR aluminum electrolytic capacitor with a high-frequency characteristic and very low impedance. It is mainly used for smoothing circuits, frequency dividers, and snubbers in switching power supplies, LED drivers and DC-DC converter circuits.

It is applicable in half-bridge snubbers in impulse converters, middle-frequency resonance circuits in AC furnaces, and high-power precision motor drive circuits. In addition, the MAL215055331E3 can also be used for buffering circuits in a wide range of audio products, such as speakers as well as audio equipment.

Working Principle of MAL215055331E3

The MAL215055331E3 consists of two aluminum foil electrodes, which are separated by an insulating media. The oxide film is used on the positive pole for the dielectric, and a conductive electrolyte on the negative pole is also used as the second electrode. The anode aluminum foil is more than 0.08mm in thickness, while the oxide film and the cathode are around 0.02mm.

When the MAL215055331E3 is in an energized state, a voltage is applied between the two electrodes. This creates an electric field through the oxide film between the anode and cathode, producing charges that are redistributed between the two electrodes. This redistribution process creates an electric field between the two electrodes as the positive charge is attracted to the negative electrode and the negative charge is attracted to the positive electrode.

When the circuit is opened, the electric fields generated by the charges are neutralized and the whole capacitor is discharged. However, due to the influence of the electrolyte and electrochemical phenomena, it takes a relatively long time for the whole capacitor to return to equilibrium. This time lag is referred to as the recovery time, which is dependent on the capacitance and the applied voltage.

Conclusion

The MAL215055331E3 is a type of aluminum electrolytic capacitor mainly used in switching power supplies, frequency dividers, snubbers and other circuits. It has a low ESR and a good high-frequency characteristics. Moreover, it can also be used in audio products such as speakers or audio equipment for buffering circuits. It consists of two aluminum foil electrodes separated by an insulating medium and electrochemical principles are used for the electric field redistribution. Finally, the capacitor needs a certain time for full discharging.

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