UVZ2AR33MDD1TD Capacitors

Aluminum electrolytic capacitors are the most widely used type of capacitor. Their main features are large capacities and high energy densities. The UVZ2AR33MDD1TD series from Radial are an example of high-quality capacitors with a working temperature rating of -55°C to 125°C, extremely low ESR, and a long life of up to 5000 hours. These capacitors are made from anodized aluminum foil with high-voltage electrolyte and are suitable for applications in high-voltage AC/DC power supplies, automotive, medical, and security systems, among others.

The working principle of aluminum electrolytic capacitors is based on the use of two plates that are separated by an electrolyte, usually a gel containing a conductive material. One of the plates, called the anode, is made of aluminum foil, which has a thin oxide layer that acts as a dielectric. The other plate, the cathode, is made of another dielectric material such as manganese dioxide, conductive polymer, or metal oxide. The electrolyte completes the circuit and acts as a medium between the two plates, allowing current to flow between them.

The electrolyte also helps prevent breakdowns by dissipating the electric field between the plates. As a result, when a voltage is applied across the plates, the electric field strength between them increases and a current flows between them. This current in turn increases the density of the electric charges on the capacitors, allowing the capacitors to store energy.

Aluminum electrolytic capacitors have several advantages compared to other types of capacitors. These include high capacitance values, low ESR values, very low leakage current, and low equivalent series inductance. These features make them suitable for use in high-frequency switching power supplies, high-voltage AC/DC power supplies, and any other application where capacitors with low ESR values and long life are needed.

In conclusion, the UVZ2AR33MDD1TD series of aluminum electrolytic capacitors from Radial are an excellent choice for applications that require a combination of high capacitance values, low ESR values, and long life. They are suitable for high-frequency switching power supplies, high-voltage AC/DC power supplies, and any other application that needs capacitors with low ESR values and long life.