UAS2D151MHD

Aluminum Electrolytic Capacitors

Aluminum Electrolytic Capacitors are a specialized type of capacitors which use a very thin layer of anodic aluminum oxide as the dielectric medium. Initially, these capacitors required mechanical contact between the aluminum plates and the electrolyte, known as wet aluminum electrolytic capacitors. Modernized versions such as UAS2D151MHD, however, are dry, with the electrolyte impregnated into the paper separator. This removes the need for a mechanical contact, making these capacitors more reliable.

UAS2D151MHD Aluminum Electrolytic Capacitors also feature a combination of high capacitance ratings in small packages, due to the use of a manganese dioxide cathode. The general parameters of this type of capacitor are 150 μF capacitance, 6.3VDC rated voltage, and a tolerance of 20%. The typical application fields for Aluminum Electrolytic Capacitors such as this one include power supplies, DC-DC converters, and electronic circuitry, where their ability to store large quantities of electrical charge comes in handy.

UAS2D151MHD capacitors achieve their performance through a process known as “polarization”, which is essentially the modulation of electrons in the capacitor dielectric to achieve the desired capacitance. At the beginning stages of operation, the aluminum plates are electrochemically “charged”, which leaves them with residual electrical charge and assets the capacitance effect. Obviously, the amount of charge stored in the plate determines the performance, and is usually specified in Farads. During operation, the capacitors current flow is determined by the charge stored in the plate, which gradually decreases after each cycle as electrons flow freely through the dielectric.

One of the key features of UAS2D151MHD capacitors is their long working life, with the rated temperature range being from -40°C to +85°C. The long life is due to the use of an internal propellant, which ensures that the oxide layer does not fall off as it would in a wet aluminum electrolytic capacitor. The long-life, combined with the high capacitance ratings, makes UAS2D151MHD capacitors ideal for many electronic PCB applications.

In conclusion, UAS2D151MHD Aluminum Electrolytic Capacitors are a specialized type of capacitors with impressive performance characteristics and long working life. Through the process of polarization, these capacitors can be used to store large amounts of electrical charge, which makes them ideal for power supplies, DC-DC converters, and many electronic amplifiers. With their small size and high capacitance, UAS2D151MHD capacitors are perfect for almost any PCB application, allowing for even more compact design.