UVK1H470MED1TA

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors (“electrolytic” for short) are capacitors whose anode is an aluminum plate anodized to form a very thin layer of oxide on its surface. This provides one of the dielectrics of the capacitor. The other dielectric consists of an ionic conducting liquid, commonly called the electrolyte. The aluminum layer, electrolyte, and second plate form the heart of a typical electrolytic capacitor.

UVK1H470MED1TA is a type of Electrolytic Capacitors. This type of capacitor can store energy in the form of electric charge, allowing it to be discharged back into a circuit. It is widely used for electronic equipment in general, such as for power supplies, sound equipment, computer, communication, automotive electronics, consumer electronics, and military applications.

Working Principle

The working principle of a UVK1H470MED1TA relies on a phenomenon called “electrolysis.” This process occurs when a voltage is applied across two conductive plates within the capacitor. The plates are separated by a dielectric, usually a liquid electrolyte. An electric current flows through the electrolyte, which then results in a charge buildup on the plates. This creates an electric field that stores energy.

In the case of the UVK1H470MED1TA, the anode is aluminum, the dielectric is the surface oxide layer on the aluminum, and the electrolyte is a solution of dissolved ions in the oxide layer. The anode, oxide layer, and electrolyte form a sandwich-like structure, with the anode at the “bottom” of the sandwich and the electrolyte at the “top.” When the voltage is applied across the plates, negatively charged ions inside the electrolyte migrate towards the anode, while positively charged ions migrate towards the dielectric. Consequently, electrons flow through the circuit and the electric field is generated.

This type of capacitor is ideal for applications where high-capacity charge storage is necessary. They can handle very high currents with low internal resistance, and are well-suited for pulse-current applications, such as for motor-control systems, dc/dc converters, and audio applications. Additionally, they feature low electrical leakage, and are able to retain their charge even during periods of no voltage.

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