UVY1A221MDD1TA

Aluminum electrolytic capacitors, also known as electrolytic capacitors, are electrolytic capacitors, which utilize the anode foil wetted by electrolyte to form an electrochemical capacitor. The working principle of aluminum electrolytic capacitors is that the anode is a thin sheet of aluminum foil bent into an unlabeled diaphragm and an electrolytic paper or aluminum oxide film is formed on its surface. The electrolytic paper or alumina film acts as the dielectric of the anode, and its cathode is made of aluminum sheet or metal mesh foil wetted by electrolyte. The anode and the cathode are separated by a separator, and the electrolyte is formed between them, forming a “sandwich” electrolytic capacitor structure.The application field of UVY1A221MDD1TA aluminum electrolytic capacitor is mainly used in various electronic products for ripple filtering, frequency division, energy storage, energy conversion and other purposes. It is widely used in personal computers, workstations, LCD monitor switching power supplies, digital amplifiers, LED power supplies and other electronic products. It can be widely used in various fields such as communication, mechanical equipment, consumer electronics and power supply. When working, the UVY1A221MDD1TA aluminum electrolytic capacitor is heated and the aluminum foil in the capacitor electrolyte is gradually electrochemically oxidized to form an oxide film on the surface of the aluminum foil. The resistance of the oxide film is very large, like an insulating layer, which isolates the surface of the aluminum foil from the electrolyte. The anode and cathode are connected by externally-applied voltage, and the positive electric field and negative electric field between the anode and cathode force the positive charge to the oxidation film and the negative charge to the electrolyte, thereby forming a capacitor. The capacitance value of the capacitor depends on the area and thickness of the oxidation film.The working voltage range of the UVY1A221MDD1TA aluminum electrolytic capacitor is usually 6.3V-450V, and the typical temperature range is -40 °C ~ 105 °C. Generally, the leakage current and ESR increase significantly with increasing temperature, and the capacitance value decreases significantly. This capacitor also has high reliability and long life time, up to 2000 hours at 105°C, so it is widely used in harsh industrial applications. Moreover, this capacitor has small size and large capacity, and it also adopts snap-in, screw and pressure welding process, which is easy to install on the printed circuit board of electronic products.