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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are important components of electronic equipment, and they are widely used in a variety of applications. The MAL225641103E3 is a high quality aluminum electrolytic capacitor that provides the reliability required by some of the most demanding applications. This article will discuss the application field and working principle of the MAL225641103E3 aluminum electrolytic capacitor.

Application Field

The MAL225641103E3 is a radial leaded aluminum electrolytic capacitor with a voltage rating of 160 VDC. It is available in a variety of capacitance values, from 10 uF to 330 uF, making it suitable for many different applications. The capacitor is designed to be used in power supply circuits, especially for those circuits that require higher ripple current and capacitor volume.

The MAL225641103E3 is also suitable for applications in motor control or any other application that requires high energy-dense capacitance. The low equivalent series resistance (ESR) of the capacitor ensures a low profile, enabling it to be used in confined spaces. It is also resistant to vibration and shock and can maintain its operating characteristics in extreme temperatures. The capacitor is rated to 105°C with a -40°C to +105°C temperature range.

Additionally, the MAL225641103E3 has UL, CQC, and X1 certification in many countries, making it suitable for use in many different types of equipment. It is available in both surface mount and through-hole packages, allowing for easy integration with existing circuit designs.

Working Principle

An aluminum electrolytic capacitor consists of two concentric metal surfaces separated by an electrolyte. The inner surface is typically made of aluminum, while the outer surface is typically made of tantalum. The Aluminum surface is the anode, while the tantalum surface is the cathode.

The capacitor is charged by connecting the anode and cathode to a DC voltage source, such as a battery. This causes an electric field to form between the anode and cathode, which forces electrons to migrate from one surface to the other. As the electrons migrate, they accumulate on the anode, creating a positive charge on the anode relative to the cathode.

The electric field created by the charge separation also causes ions from the electrolyte to migrate to the anode and cathode surfaces. These ions create an electrical double layer between the anode and cathode, which acts as a barrier to further migration of electrons. This double layer stores the charge and forms the electrical capacitance of the capacitor.

When the capacitor is connected to an AC voltage source, the capacitance of the capacitor will cause it to “reach out” and discharge, allowing current to flow through the capacitor. The magnitude of the current will depend on the frequency of the AC voltage source. The amount of charge stored on the capacitor is also temperature dependent, meaning that higher temperatures decrease the capacitor’s capacitance.

Conclusion

The MAL225641103E3 is a high quality aluminum electrolytic capacitor that is designed for robust use in a variety of applications. It is available in a wide range of capacitance values and can withstand a wide temperature range. Moreover, the low equivalent series resistance of the capacitor ensures that it is suitable for use in power supply circuits and motor control applications.

The working principle of the MAL225641103E3 involves the formation of an electric double layer between the anode and cathode of the capacitor, which forms the capacitance. When the capacitor is connected to an alternating voltage source, it discharges, allowing current to flow through it. The magnitude of the current depends on the frequency of the AC voltage source, and the amount of charge stored on the capacitor is also temperature dependent.

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