MAL213238479E3

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Aluminum electrolytic capacitors are a type of capacitor that typically use anodic aluminum oxide (AAO) as the dielectric and an electrolytic solution of aluminium ions as the electrolyte. The MAL213238479E3 is an aluminum electrolytic capacitor designed for use in various applications. This article looks at the application field and working principle of the MAL213238479E3.

Applications

The MAL213238479E3 is designed for use in applications such as UPS, HID, medical equipment, industrial and automotive control devices, and industrial automation. It can be used as a start-up capacitor for electric motor starting or as a decoupling capacitor to reduce power line noise. It has a ripple current up to 2414mA and capacitance range up to 2200 micro-F. The capacitor is rated for 105°C operations and is designed for a long life span. It also comes with an option for a “Low ESR” option to reduce ESR and increase life. The MAL213238479E3 is available in both radial and snap-in packages with a variety of capacitance and voltage ratings.

Working Principle

The working principle of an aluminum electrolytic capacitor is based on the capacitance of the anodic oxide layer formed on its surface. The leads of the device are made from lead and attached to opposite sides of an aluminum foil. An electrolytic solution of aluminium ions is used as the electrolyte and an anodic oxide layer (AAO) is formed on the aluminum foil. A DC voltage is applied across the two leads and the aluminum foil is charged, which in turn causes the ionic layer of the AAO to become polarized. This polarization increases the capacitance of the foil and increases the charge on the device. The degree of the polarization is determined by the voltage applied across the terminals and by the characteristics of the electrolyte.

The AAO layer is very thin and can be easily damaged, making aluminum electrolytic capacitors very fragile. To prevent damage, they are usually mounted in special enclosures to protect them from heat, vibration and other sources of stress. Additionally, aluminum electrolytic capacitors can also be combined in series or parallel to increase their capacity.

Conclusion

The MAL213238479E3 is a type of aluminum electrolytic capacitor with various applications such as UPS, HID, etc. Its working principle is based on the capacitance of the anodic oxide layer formed on it surface and its ability to polarize when a DC voltage is applied across it. The MAL213238479E3 has a ripple current up to 2414mA and capacitance range up to 2200 micro-F and is also available in radial and snap-in packages with various capacitance and voltage ratings.

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