MAL213668151E3

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of capacitor with a solid aluminum electrolyte that is used in a variety of applications. They are characterized by their high capacitance values, low equivalent series resistance (ESR), and long life expectancy. Aluminum electrolytic capacitors use two aluminum electrodes – an anode and a cathode – with a semi-solid electrolyte in between. Typically, the capacitor is filled with a liquid electrolyte or an oxide-enriched paste. The aluminum electrolyte acts as the dielectric and provides a large capacitance.

MAL213668151E3 is an aluminum electrolytic capacitor. It is a radial lead axial-lead capacitor with a 105°C operating temperature. Its applications include automotive electronic equipment, home instrumentation, TV sets, audio equipment, DVD players, and electronic toys. It is a long life, low temperature surface-mount aluminum electrolytic capacitor. It provides high ripple current capability and is designed for use in commercial and industrial applications.

Working Principle

The working principle of an aluminum electrolytic capacitor is based on the electrical energy stored in the electronic dielectric. Electrical energy is stored between two electrodes separated by an intervening dielectric. The aluminum electrolyte acts as the dielectric in this type of capacitor. With this arrangement, an electric field is created which causes a current to flow through a pair of electrodes. The current flows through the electrodes and an oxide layer is formed on the surface of the aluminum electrodes. This oxide layer forms the electronic dielectric. The charge is stored on the electrolyte until it is discharged, at which time it returns to its original state.

In its most basic form, an aluminum electrolytic capacitor is simply two aluminum foil sheets coated with an electrolyte. The aluminum foil acts as the electrodes and the electrolyte provides the dielectric. When a voltage is applied between the two electrodes, ions are attracted to the positive electrode. An electric field is created which helps create a conductive channel between the two. This allows electric current to flow through the capacitor and form the basic function of an aluminum electrolytic capacitor.

The capacitance value of an aluminum electrolytic capacitor also depends on the size and shape of the capacitor. Generally, larger sizes and flatter shapes with fewer sharp edges will increase the capacitance. The maximum capacitance for a given size will also be affected by the characteristics of the electrolyte and the dielectric. For example, the capacitance may be increased by the addition of an electrolyte with a higher capacitance.

An aluminum electrolytic capacitor also has the ability to withstand high-frequency ripple current. This is because the oxide layer formed on the aluminum foil provides an additional layer of insulation for the capacitor, which helps reduce losses in capacitance. The ability of an aluminum electrolytic capacitor to handle high-frequency ripple current is one of its major advantages over other types of capacitors.

The Mal213668151E3 aluminum electrolytic capacitor is a great choice for applications needing a high ripple current rating, long life expectancy, and high capacitance. With its 105°C operating temperature, it is ideal for automotive electronics, home instrumentation, TV sets, audio equipment, DVD players and electronic toys. Its excellent performance at high frequencies makes it a great choice for high-performance applications.

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