MAL216255473E3

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Aluminum electrolytic capacitors are widely used in numerous industrial, medical, communications, and consumer electronics applications.

The MAL216255473E3 is a polarized aluminum electrolytic capacitor with long lifetime, high ripple current and low impedance. Its exemplary characteristics make it a great choice for medium to high current, long life applications.

Application Field

The MAL216255473E3 is mainly used in power supply for heavy industrial equipments, automotive devices such as ECU and UPS, computers, LED lighting, switch mode power supplies, and DC to DC converters, among other applications. The unique features of this product make it a superior choice for numerous types of power systems.

It can also be employed in telecom and signal processing, as well as Smart Grid technology, AC drives, DC drives, and nuclear power plant control systems. For all these applications, the device provides excellent characteristics in terms of speed, power supply ripple current, long operational life and temperature characteristics.

Working Principle

Unlike other types of capacitors, aluminum electrolytic capacitors are made up of an aluminum oxide film on the anode roll. This is in contrast with the conventional capacitors which use film dielectric layers such as plastic or paper dielectrics. This aluminum oxide layer can be made extremely thin such that its thickness is equivalent to one hundredth of the thickness of the aluminum foil. Thus, aluminum electrolytic capacitors are able to store very high electrical charge densities despite occupying small volumes.

The MAL216255473E3 has a polarized electrolyte electrolytic capacitor. This means that the applied voltage must be of the same polarity as the aluminum foil at the anode. Furthermore, this electrolytic capacitor uses a unique cylindrical construction style which allows it to have a large and stable capacitance value in comparison to other capacitors of the same size.

As with all electrolytic capacitors, the MAL216255473E3 also suffers from dielectric leakage and dry out. Hence it is essential to ensure the capacitor is properly installed and protected from overvoltage and reverse polarization. This capacitor should also not be used in circuits running at frequencies greater than 1 kHz.

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