LGN2Z821MELZ40

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Aluminum electrolytic capacitors are a type of capacitors with a special anode construction that increases the available capacitance in a very small, low profile package at a cheap cost. The anode structure is an electrolyte-soaked paper sandwiched between two sheets of aluminum foil. As the capacitor charges, ions pass through the electrolyte, creating a very tight electrical connection between the two aluminum sheets. The LGN2Z821MELZ40 is an aluminum electrolytic capacitor manufactured by Rubycons Electronics Limited.

Due to the high capacitance density and low width of the LGN2Z821MELZ40, it is an ideal choice for power supplies and other applications which require high performance and low size or mass. Specifically, the LGN2Z821MELZ40 is most commonly used in power supply circuits such as high performance personal computers and gaming consoles, as well as in automotive electronics and communications equipment. Other applications where the LGN2Z821MELZ40’s low profile may be advantageous are switching mode power supplies, resonant circuits, rectifier circuits, and filtering applications.

The working principle of the LGN2Z821MELZ40 is based on a phenomenon known as electrolytic polarization. This is caused by the inter-action between a charge and an electrolyte, which can form an additional capacitance component. The electrolyte acts as an insulator, preventing the flow of an electric current through the capacitor and allowing charge to build up on the dielectric medium which is inside the capacitor. This additional capacitance helps to create a high capacitive load, and thus a high capacitance density.

The LGN2Z821MELZ40 has a rated capacitance of 2.2µF, with a rated voltage of 35V, and a surge voltage of 55V. It has a thick end-tab construction which helps to keep the terminal-to-terminal height very low. The temperature range over which this capacitor may safely operate is -40º C to +105º C, and it has a maximum ripple current of 160mA. The capacitor has an extended life of 1,000 hours at 105ºC, and its profile is 7.3 mm X 12.0 mm.

The aluminum electrolytic capacitor embedded in the LGN2Z821MELZ40 is constructed from two aluminum layers with a very thin electrolytic film acting as a dielectric between them. The electrolyte acts as a second dielectric, increasing capacitance. At the same time, this electrolyte also acts as a conductor for the electrons, allowing for the transfer of charge. As the charge transfers between the two sides of the capacitors, a potential difference is created, which is what allows the capacitor to store energy and release it in a controlled manner.

The LGN2Z821MELZ40 is a very versatile aluminum electrolytic capacitor which offers a range of benefits including high capacitance density, low profile design, high temperature range, and extended life. It is well suited for a wide range of applications in high performance, low profile systems such as power supplies and automotive electronics.

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