MAL215038102E3

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are electrical components found in many electronic devices and circuits. They consist of a metalized can containing a liquid electrolyte wrapped in an aluminum foil. Capacitors of this type are used for smoothing, noise reduction, filtering and controlling voltages. The MAL215038102E3 capacitor is a surface-mounted aluminum electrolytic capacitor for use in high-frequency circuit boards, such as portable electronic devices and equipment, for improved power-handling capability.

Application Field

The MAL215038102E3 is well-suited for a variety of applications, especially ones involving high-frequency switching, such as switching power supplies, DC-DC converters, and portable electronics. Its compact size and high capacitance make it particularly attractive for those needing hybrid and miniaturized devices. Additionally, the capacitor has a low equivalent series resistance of 0.01ohms and a high ripple current (IR) of 40A.

Working Principle

The working principle of an aluminum electrolytic capacitor is based on the Faraday principle which states that a current is created with an electric field within a circuit when two electrodes are placed within a polarizable dielectric material. The dielectric is usually a product of the electrolyte contained in the capacitor. An aluminum foil is wrapped over the electrolyte and sealed up. Once an electric field is established, some of the ions located within the dielectric are polarized and locked in at certain points. This is the capacitance. The ions constitute the charge which is equal on both sides of the capacitor.

When a voltage is applied to the aluminum electrolytic capacitor, the current creates a flow of ions and charges through the device, generating electric and magnetic fields. The electric field stores energy in the electrodes. The magnetic field causes displacement of the ions which will cause a change in the capacitor’s Faraday flux and result in a voltage drop. Therefore, the capacitor’s capacitance can be controlled by adjusting the charge stored in the electrodes. Due to its comparatively short storage time, the MAL215038102E3 capacitor is suitable for high-frequency applications.

In summary, the MAL215038102E3 aluminum electrolytic capacitor has many important characteristics which makes it the ideal choice for circuits in portable and high-frequency applications. Its low equivalent series resistance and high ripple current make it ideal for those looking to reduce power use, while its compact size and high capacitance make it well-suited for makers of miniaturized and hybrid devices.

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