MAL215849332E3

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Aluminum electrolytic capacitors are invaluable components found in a variety of electronic circuits. Featuring exceptionally high capacitance values for a given volume, these capacitors come in multiple varieties and are often marked with codes, such as MAL215849332E3, that indicate their properties. This article explains the application field and working principle of the MAL215849332E3 aluminum electrolytic capacitor.

Overview

Electrolytic capacitors are made using aluminum foil electrolyte and separator paper, and are one of the most widely used types of capacitors, primarily due to their excellent capacitance-to-volume ratio and low cost. However, they have relatively low insulation resistance, making them unsuitable for certain low-level precision signal applications. Another disadvantage is their maximum operating temperature, which is lower than other types of capacitors.

The MAL215849332E3 aluminum electrolytic capacitors are commonly rated for Capacitance, Voltage, Ripple Current, Dielectric Strength, Life, and Temperature. These capacitors come in various sizes such as Radial and SMD and have a wide range of applications in different industries.

Application Field

The MAL215849332E3 aluminum electrolytic capacitor is primarily used in the power management systems of digital electronics, AC/DC LED lighting devices, motor drive systems, and UPSs. This includes applications such as power switching and inrush suppression, noise reduction, and circuit protection. The capacitor also finds use in high voltage systems such as high voltage DC/DC converters and various operated equipment, as well as low voltage applications such as LED driver circuits and small-signal drive circuits.

Working Principle

The MAL215849332E3 aluminum electrolytic capacitor is a polarized capacitor that uses an aluminum foil etched body with an oxide film, as the dielectric, separated by a paper sheet. An electrolyte solution is used to insulate the two foil. When AC voltage is applied, electric current flows through the electrolyte. The electrostatic charge on the oxide film is arranged in parallel to the applied AC voltage.

The current passing through the electrolyte causes the oxide film to become electrochemically polarized, resulting in a decrease in capacitance and an increase in the equivalent series resistance (ESR). The thickness of the oxide film is directly related to the maximum rated voltage of the MAL215849332E3 electrolytic capacitor. As the thickness of the oxide film decreases, the maximum rated voltage also decreases.

The MAL215849332E3 aluminum electrolytic capacitor is highly stable and durable due to its self-forming layer of thermal aluminum oxide on the surface of the aluminum foil. This thermal layer is the main factor in insulating the capacitor and ensuring stability.

Conclusion

The MAL215849332E3 aluminum electrolytic capacitor is a reliable and cost effective component for a variety of electronic circuit applications, such as power management, noise reduction, and circuit protection in digital electronics, LED lighting devices, motor drive systems, and UPSs. This capacitor is mainly characterized by its high capacitance-to-volume ratio, low cost, low insulation resistance, and its self-forming thermal aluminum oxide film insulation layer that ensures the capacitor\'s stability and durability.

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