EKMQ250ELL682MLP1S

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Aluminum electrolytic capacitors are a type of capacitor whose anode is an aluminum foil and the dielectric is formed by certain aluminum oxide that forms on the aluminum oxide due to anodic oxidation. The terminals of the capacitor are connected to the aluminum foil and the oxide layer is interposed between them. This kind of capacitor is characterized by its large capacity and low price due to its simple process and cheap raw material. One example of aluminum electrolytic capacitors is the EKMQ250ELL682MLP1S series.

The EKMQ250ELL682MLP1S series of aluminum electrolytic capacitors has a long life, a low leakage current, and a high temperature of 65°C. This series of capacitors has two types of lead wires: axial lead and radial lead. It is mostly used in UPS and power supplies as well as for power filtering, AC filter circuits, and DC voltage regulator circuit. The EKMQ250ELL682MLP1S series is mainly applicable to the control circuit of consumer electronics, automotive electronics, communication products, non-discerning or emergency power systems.

It can also be used in applications such as high frequency inverters, switching DC power supplies, AC to DC conversion, and the buffering of PCBs. The working principle of aluminum electrolytic capacitor is that when voltage is applied between its two metal electrodes, an electric current passes through the electrolyte and begins to create an oxide film on the aluminum electrode. This oxide film acts as a dielectric layer and determines the capacitance of the capacitor. The film also helps protect the surface of the aluminum electrodes from corrosion and protects the capacitor from short-circuits.

The capacitance of aluminum electrolytic capacitors mainly depends on the area of the electrodes, the thickness of the oxide film, the solution type of the electrolyte, and the temperature of the aluminum film. During the electrical and thermal aging of the capacitor, the electrolyte migrates inside the oxide film, reducing its thickness and affecting its capacitance and leakage current so that the change in capacitance is very small. In addition, aluminum electrolytic capacitors have good stability, good self-healing effect, and low equivalent series resistance. All these make the EKMQ250ELL682MLP1S series of aluminum electrolytic capacitors ideal for use in a wide range of applications.

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