B41690A7258Q7

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are passive electronic components, typically consisting of two conductive plates separated by an electrolytic fluid housed in a rigid, metal case. The plates are made of aluminum foil, with the back side coated with a solid electrolyte. The solid electrolytic layer delivers added strength and acts as a separator between the two conductive plates. In some cases, an additional layer of a dielectric film may be added for reinforcement.

B41690A7258Q7

B41690A7258Q7 is a type of aluminum electrolytic capacitor manufactured by Rohm. It has a rated capacitance of 22uF, a rated voltage of 25V, and an operating temperature range of -40C to +85C. The capacitance increases with voltage, and it is a type of transistor that performs well for pulse supplies and high-speed circuits.

Application Field and Working Principle

Aluminum electrolytic capacitors are widely used in high-frequency circuits, such as audio circuits, TV sets, computers, monitors, and communications equipment. They are popular among consumers because of their small size, high capacitance, and low cost.

The working principle of aluminum electrolytic capacitors is relatively simple. When the capacitors are in use, there is a direct current across the conductor plates. As the direct current passes through the plates, it creates a electric charge that cause the electrolyte between the plates to attract and hold electrons. These electrons create an electric field that is strong enough to attract and redistribute the charge across the capacitor.

This electric field also affects the electrical properties of the capacitor, such as the impedance and the ability to store energy. The electrode displays this effect by having a high capacitance or "storage capacity", which is basically the amount of electrical energy or power the capacitor can store up before it needs to be recharged.

The above-mentioned properties of capacitors make them very useful in electronic circuits. They are capable of delivering peak current output for a short period of time, which is very important in many circuits. They also offer a uniformly high ESR, (Equivalent Series Resistance), or an essentially finite amount of resistance, across the entire operating range, which gives circuits an improved power delivery.

In addition, they are very stable in temperature and can handle frequencies up to 100MHz (100,000,000 cycles per second). This makes them especially ideal for use in sensitive electronics such as video, audio, and communication equipment.

In short, aluminum electrolytic capacitors are popular and versatile components that are widely used in many types of electronic circuits. Thanks to their high capacitance, low cost, and ability to withstand operating conditions in extreme temperatures, many manufacturers rely on B41690A7258Q7 type of aluminum electrolytic capacitors for their applications.

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