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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are capacitors whose capacitance is obtained by combining two aluminum foils together with a separator containing an electrolyte paste.The two plates are the anode and the cathode respectively, and the electrolyte is an ionic conducting material between the two.

LGW2G101MELZ25 Application Field and Working Principle

The LGW2G101MELZ25 is a radial leaded aluminum electrolytic capacitor designed for use in a wide range of applications including HVAC equipment, communications equipment, and industrial systems. The LGW2G101MELZ25 features an operating temperature range of -55°C to +105°C and is available in six different capacitance ranges: 1µF to 10µF, 10µF to 33µF, 33µF to 56µF, 56µF to 120µF, 120µF to 180µF and 180µF to 1000µF. The maximum ripple current for this capacitor is 2.4A at a frequency of 100KHz and 105°C.

The LGW2G101MELZ25 utilizes an externally applied voltage applied across the two aluminum plates to create a charge separation. This is done when the foil is anodized, which creates an oxide layer along the surface of the foil. This oxide layer acts as a porous medium through which ions can diffuse and establish an electric field across the foil. The anode, which acts as a source of electrons, becomes negative, while the cathode, which acts as an electron sink, becomes positive.

Once the voltage is applied, an electric field is created and the electrons are transferred from the anode to the cathode. This creates an electric double layer on the surface of the plate, which is filled with ions from the electrolyte solution. These ions are then attracted to each other, creating a separation of charge and resulting in the formation of an electric field between the anodes and cathode. The electric field then causes the ions to move through the oxide layer, creating the capacitance.

In addition to the above, the LGW2G101MELZ25 also features a low-impedance design to ensure reliable operation even in high-temperature environments. The capacitor also offers extended life with up to 2000 hours of operation at full load. This makes it an ideal choice for applications where long operational life is essential.

The LGW2G101MELZ25 is a reliable and cost-effective aluminum electrolytic capacitor that can be used in a wide range of applications. The capacitor is available in six different capacitances, has a wide operating temperature range, and offers extended life under full load. The low-impedance design ensures reliable operation even in harsh environments and makes the LGW2G101MELZ25 a great choice for applications requiring reliable and long-term performance.

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