250VXH390MEFC25X30

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are capacitors that utilize a chemical reaction between an aluminum anode and an electrolytic solution (usually an organic solvent such as an ethanol/mineral oil mixture) and an aluminum oxide layer as its dielectric. They are used for a wide variety of applications, including power management, energy storage, power switching, and signal filtering. The size and capacity of an aluminum electrolytic capacitor will vary depending on the application it is used for.

250VXH390MEFC25X30 Application Field and Working Principle

The 250VXH390MEFC25X30 series of aluminum electrolytic capacitors is designed for high-voltage, high-performance power applications. This series is commonly used for pulse generator circuits, power filters, charge and discharge circuits, and general switching power supplies. The capacitance range of this series is from 0.47uF to 470uF and it operates at a rated voltage of 250V. This series is constructed with a long life, high surge withstanding capability and rated for temperatures up to 125°C.

The 250VXH390MEFC25X30 aluminum electrolytic capacitor utilizes a thin aluminum oxide layer as a non-conductive dielectric, which is formed on the surface of the metal capacitor core. This is accomplished through an electrochemical reaction that deposits a layer of titanium dioxide on the aluminum foil. This layer of titanium dioxide acts as a dielectric, with a thickness of 3.5 micrometers. The electrodes are then connected to an electrolyte that supplies ions to the capacitor when a voltage is applied. This causes the metal ions to migrate across the dielectric and form a double-layer capacitor. When the capacitor is discharged, the metal ions are removed from the oxide film and the capacitor is reset.

The 250VXH390MEFC25X30 aluminum electrolytic capacitor is also designed with an extended life feature that significantly increases its operational life. This is accomplished by increasing the temperature of the electrolyte to higher levels and providing an optimized composition of the electrolyte. This helps ensure that the capacitor maintains its performance over long periods of time, which helps reduce maintenance and replacement costs. Additionally, this series is constructed with a laser-welded case, which helps eliminate any possibility of leakage.

Conclusion

The 250VXH390MEFC25X30 series of aluminum electrolytic capacitors is designed for high-performance, high-voltage power applications. This series utilizes an electrolyte-filled thin aluminum oxide layer as its dielectric, which provides excellent capacitance and operational life. This series also offers a laser-welded case that helps protect against any potential leakage. The 250VXH390MEFC25X30 series of aluminum electrolytic capacitors is a great choice for applications where high performance, high voltage power is required.

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