URZ2A3R3MDD

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are electrochemical energy storage devices. They are used to store electrical energy in a form of electric charge due to the separation of anode and cathode. The process of storing charge is achieved by using concept of electro Chemical polarization

URZ2A3R3MDD Application Field and Working Principle

The applications of Aluminum Electrolytic Capacitors are mainly confined to the fields of radio, television, audio equipment and measuring instruments, etc. URZ2A3R3MDD class of capacitor is widely used in power supplies and silicon-controlled rectifier (SCR) applications.

The body of URZ2A3R3MDD Aluminum electrolytic capacitor consists of a rigid aluminum casing that is lined on the inside surface with an electrolytic paper. On top of the paper a long strip of cathode-anode material is tightly clamped. The terminals passing through a small hole, sealed with metal cap, on the end of the can are hooked up to an electric circuit.

The capacitor works on the principle of having two oppositely charged plates separated by an electrolyte and a dielectric material, or ‘insulating layer’. In a capacitor, the electric charge accumulates onto one plate, which becomes positive, while the other plate builds a negative charge. This charge buildup creates the capacitance. As the electrolyte and dielectric, the aluminum electrolytic capacitor uses a combination of an electrolyte – an electrically conductive liquid – and an alternatively electrolyte-soaked paper-based material. The paper layer works as a separator, thus, it filters out impurities.

URZ2A3R3MDD class of capacitor has good high temperature capacity, long-term stability, high ripple current rating, very low ESL, and long life. Its high ripple current, low dissipation factor, and long life make it ideal for a variety of circuit applications such as power supplies, switch-mode power supplies, and battery chargers.

In addition to their low price, Aluminum electrolytic capacitors have a long lifespan. They require no service or maintenance and will typically deliver many years of reliable service under regular operating conditions. The main disadvantage of Aluminum electrolytic capacitors is their failure rate, which can be as high as 20%.

URZ2A3R3MDD class of capacitor will provide years of reliable service in power supply, switch-mode power supplies, and battery charger applications. Its long-term stability, low ESL, high ripple current rating, and long life, makes it the most attractive option for these applications.

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