UPM2W010MPD

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Aluminum electrolytic capacitors are a type of capacitor, typically used in power electronic applications, that are made from an electrolyte of a stabilizing or reservoir liquid like oil (also known as a dielectric liquid) and a dielectric material. Aluminum electrolytic capacitors can store a large amount of energy and has low leakage current. In operation, it acts as a high-frequency filter or decoupler in electronic circuits.

UPM2W010MPD Application Field and Working Principle

UPM2W010MPD is an ultra-miniaturized aluminum electrolytic high-capacity capacitor which is used in charging and power cell applications. This type of capacitor has a large capacity and is used in low power and low impedance applications. The working principle of the UPM2W010MPD aluminum electrolytic capacitor is based on the electrochemical exhaustion of the active aluminum or tantalum layer. It is basically a dielectric and filled with liquid and a sealant to make it more durable and stable. The UPM2W010MPD aluminum electrolytic capacitor consists of two metal electrodes, dielectric, and a dry interfacial film.

The anode of the electrolytic capacitor is made of aluminum foil which has been oxidized, creating an oxide layer of alumina and a chemically active coating of aluminum oxide film. The oxide layer acts as a dielectric, and when a voltage is applied to the capacitor, it stores electrical charge. The dielectric of the capacitor is formed by a radial region between the anode and the cathode of the capacitor. The dielectric allows the electrical charge to be stored across the anode and the cathode. The dielectric material used is typically a polyester film.

The cathode of the capacitor consists of a thin metal foil with a positive terminal that is in contact with the electrolyte. The electrolyte, typically potassium hydroxide, forms the cathodic contact, which forms an anion exchange membrane. This anion exchange allows ions to cross the dielectric for charge storage.

UPM2W010MPD aluminum electrolytic capacitors are primarily used in low power, low impedance applications such as in power supply designs and motor drive circuits. They are also used in telephone, personal computers and nuclear equipment applications. The major advantage of using aluminum electrolytic capacitors is that they are able to store a large amount of energy in a small size compared to other capacitors. Additionally, they are lighter and thus more efficient, as aluminum has a higher power density than other materials often now used in capacitors.

UPM2W010MPD aluminum electrolytic capacitors are also highly reliable, and when polarised, they maintain their capacitance and voltage stability for long periods of time. This makes these capacitors highly suitable for power supply designs and for a variety of control applications. While other materials like tantalum capacitors can be used for control applications, aluminum electrolytic capacitors are preferred for their lower cost and higher efficiency.

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