UVY2D221MHD

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Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor, also known as an aluminium electrolytic capacitor, is an electrical filter that is used as a power supply device in many electronic circuits. It consists of two aluminum foils that are separated in the middle by an oxide layer. This oxide layer acts as an insulator, allowing current to not travel between the foils. The oxide layer also acts as an electrical dielectric, enabling capacitance between the two electrodes.

The most common type of aluminum electrolytic capacitor is the single-end polarized capacitor. This type of capacitor has a positive terminal on one end and a negative terminal on the other. The positive terminal must be connected to the higher voltage source, while the negative terminal must be connected to the ground. This type of capacitor is widely used in DC-DC converters, television sets, and computer memories.

UVY2D221MHD is a surface mount, aluminum electrolytic capacitor that is used in a variety of applications. This capacitor is designed for high voltage and high temperature applications and offers high capacitance and low ESR values. It is designed to store energy and to provide a medium for passing electrical signals from one point to another. The primary application of this capacitor is in automotive applications, particularly in engine control systems.

In its working principle, a charge is applied to the negative plate of the capacitor through a current source. This charge passes through the oxide layer (dielectric) and is stored as an electrostatic field in the space between the two plates. When the voltage across the dielectric is reversed, the electrostatic field collapses, resulting in an electrical discharge. This discharge passes from the positive plate to the negative plate through the circuit.

The capacitance of the capacitor is determined by the thickness, area, and dielectric constant of the oxide layer. The larger the area and dielectric constant of the oxide layer, the higher the capacitance of the capacitor. The dielectric constant of the oxide layer is determined by the composition of the layer as well as the temperature. The dielectric constants of common dielectrics such as tantalum, aluminum oxide, and polyester vary between 6 and 100.

The UVY2D221MHD is a high-quality aluminum electrolytic capacitor that is suitable for most applications. Its high capacitance and low ESR values make it ideal for automotive and power supply designs. It is designed to handle high temperatures and offers high reliability. This capacitor is the perfect choice for any application where high performance and reliability are required.

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