MAL210679473E3

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Aluminum electrolytic capacitors use a design with two electrodes interconnected by a conductive electrolyte, instead of a dielectric as used in typical capacitors. Generally used for low-frequency operations or high-voltage applications, these capacitors can vary in size with electrolytic capacitors usually being somewhat larger than other types of capacitors. The MAL210679473E3 aluminum electrolytic capacitor is designed for use in such applications for electronic devices.

Using a proven snap-in design, these capacitors provide wide capacitance range, up to about 220µF nominal, with tolerance levels as low as ±20%. In addition, these capacitors provide such features as high stability and long life, which make them suitable for use in consumer applications.

This highly durable aluminum electrolytic capacitor is also designed for use in many industrial and medical device applications. Security and telecom applications, computer and power supply systems, and other high-end equipment requiring high-temperature and high-frequency operations can also find this capacitor useful.

At the heart of the MAL210679473E3 aluminum electrolytic capacitor is a aluminum foil wrapped around a paper substrate, and a conductive electrolyte. This electrolyte is often a combination of organic and inorganic acids, and serves as the insulating dielectric. As electric current passes through the capacitor, the ions that comprise the electrolyte form a layer of oxide on the aluminum foil anode. The oxide layer does not change when the electric current passes through the capacitor. Thus, the capacitor is said to be “formed” and it is the oxide layer that determines the capacitance.

The amount of capacitance and the working voltage of the MAL210679473E3 aluminum electrolytic capacitor is determined by the number and thickness of the aluminum foil used, the amount and type of electrolyte, and the type and thickness of paper substrate used. The rated voltage of the capacitor is determined by the rapid oxidation of aluminum in an organic electrolyte. The foil is quickly oxidized in the presence of an organic electrolyte and thus restricts the electric current passing through the capacitor, which leads to a low ESR value.

The construction of the aluminum electrolytic capacitors provides several advantages. One such advantage is that these capacitors are virtually immune to changes in temperature and humidity, and they offer good heat and flame resistance. In addition, aluminum electrolytic capacitors are easy to assemble and are widely available.

The MAL210679473E3 aluminum electrolytic capacitor is an excellent choice for electronic devices requiring wide capacitance range, high stability, and long life-cycles. The capacitor provides reliable service in a wide range of temperatures and offers excellent resistance to heat and flame. With a snap-in design, and consistent insulation and performance, the capacitor is suitable for use in numerous applications including security and telecom, computer and power supply systems, and other high-end electronic equipment.

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