B41890A4827M

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Aluminum electrolytic capacitors, often simply referred to as electrolytic capacitors, are fixed capacitors that contain an electrolyte, usually an alkaline, aqueous solution, to facilitate the formation of a semipermeable layer of oxide on the aluminum plates. B41890A4827M, is a specific type of such capacitors. This article attempts to explain its application and working principle.

B41890A4827M belongs to the radial leaded family of Aluminum Electrolytic Capacitors. It has a capacitance of 4700uf and a voltage rating of 25V. It comes in the form of a radial cylinder and features axial leads that emerge from both ends, with lead spacing of 5mm. The device is typically manufactured by sintering aluminum foil, with an increase in watt density and lifetime. This allows the device to be used as an energy storage device in difficult applications involving temperatures beyond + 125 °C.

This type of capacitor has a number of application fields, such as DC-DC converters, Backup / Backplane power supplies, Automotive electronics, Solar Inverters, Set-top-box and high-temperature applications where the capacitor is expected to survive beyond 125 C. It is also tested for shock, vibration, and thermal cycling.

The working principle of an aluminum electrolytic capacitor is based on the fact that when an electrical current is passed through an electrolyte it produces a magnetic field. This magnetic field causes an oxide deposit to form on the surface of the capacitor plates. This creates a barrier which allows charges to build up on the plates and create an electrical field. This field then causes a change in the dielectric of the capacitor. This change allows the capacitor to store a large amount of electrical charge.

The aluminum oxide formed on the capacitor plates helps to reduce the amount of electric current that can flow through the capacitor. This allows the capacitor to act as a regulator. The oxide deposit also acts as a barrier which helps to reduce leakage. This is beneficial in applications such as DC-DC converters where a low loss is desirable.

The aluminum electrolytic capacitor is a reliable component that is well suited for a wide variety of electronic applications. It has a good temperature rating and a long life span. It is also quite inexpensive, making it an asset for both large and small projects. Additionally, its size and form factor make it a flexible choice for a variety of circuit designs.

In conclusion, B41890A4827M is a specialized type of capacitor in the aluminum electrolytic family. It has a number of advantages, such as a long lifetime, good temperature rating, wide capacitance and voltage rating. Furthermore, its form factor, compact size and low price make it an attractive choice for a variety of applications.

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