B43890A5475M000

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Aluminum electrolytic capacitors are a type of capacitor composed of an anode and cathode separated by a dielectric oxide film. It is constructed using a rolled aluminum foil that is etched with a pattern and then coated with an electrolyte solution. It is commonly used in electronic circuit designs for various purposes including filtering, buffering and signal conditioning.

The B43890A5475M000 is a large-capacity aluminum electrolytic capacitor with a capacitance value of 4.75mF and a voltage rating of 450V. It is a capacitance polarized aluminum capacitor, listing its characteristics as a high stability, low ESR (ESR = 0.68Ω) and low equivalent series inductance (ESL = 0.8nH). It is enclosed in a large case measuring 60 to 84 mm in length and 43 to 55mm in diameter. This type of capacitor is general purpose and is suitable for use in a wide range of circuit applications.

The construction of the B43890A5475M000 aluminum electrolytic capacitor consists of three parts: the anode (aluminum foil), the cathode (system of zinc coated cellulose fiber) and the electrolyte (aqueous sulfuric acid). The construction begins with etching the anode to create a fine pattern called a ripple. An alkaline electrolyte is applied to the ripple which acts as a charge transfer layer. The cathode is then applied to the ripple and the electrolyte and a voltage is applied to the capacitor. This causes an electrolytic reaction to occur between the anode and cathode which results in the formation of an oxide film. This oxide film acts as the dielectric layer and is responsible for the capacitor’s high capacitance value.

The B43890A5475M000 aluminum electrolytic capacitor is a popular choice for many circuit applications due to its high capacitance value. It is mainly used for applications in which high capacitance values are required such as DC link circuits, motor control circuits, and switching power supplies. It can also be used in AC line filtering, high-voltage rectification, power factor correction, and energy storage applications. This capacitor is also highly reliable, allowing for use in systems where failure is not an option.

In conclusion, the B43890A5475M000 aluminum electrolytic capacitor is a versatile capacitor with a wide range of applications. It offers a high capacitance value, low ESR and ESL values, and is highly reliable, making it suitable for a variety of electronic circuit designs. It is commonly used for DC link circuits, motor control circuits, switching power supplies, AC line filtering, high-voltage rectification, power factor correction, and energy storage applications. It is an important component in any electronic circuit design and is essential for the efficient operation of any device.

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