B43501A187M82

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Aluminum electrolytic capacitors, such as B43501A187M82, are a type of electrical component found in many electronics devices. In its most basic form the capacitor is made of two metal plates, a cathode and an anode, with a dielectric material, known as an electrolyte, between them. The electrolyte is usually a liquid, but can also be a solid. The characteristics of aluminum electrolytic capacitors make them an ideal choice for use in many different types of electronics.

Application Field

Aluminum electrolytic capacitors, such as B43501A187M82, are most commonly used in power supplies, and are an essential part of switching power supplies, which are used in a variety of products, including computers, mobile phones, and televisions. Aluminum electrolytic capacitors are also used as filters on audio amplifiers, and as snubbers in power converters. They can also be used for decoupling, when two different areas of a circuit need to be isolated from each other.

Aluminum electrolytic capacitors are widely used in motor drives, light dimmers, and fluorescent tube drivers. They are also used in motor control centers, UPS power supplies, and adjustable speed drives in robotics. Additionally, B43501A187M82, can be used in lighting protection circuits, EMI filter circuits, and as coupling capacitors.

Working Principle

The capacitance of an aluminum electrolytic capacitor, such as B43501A187M82, is determined by the area of the electrodes, the distance between them, and the permittivity of the electrolyte. It is typically around a few thousand times the value of its ceramic counterpart. When a voltage is applied across the capacitor, current flows through the electrolyte, charging it up and creating an electric field between the two metal plates.

When the voltage across the capacitor is decreased, as when the capacitor is used in a power supply, the current between the plates slows and a charge is stored between them. This charging and discharging of the electrolyte creates a steady capacitance. When the voltage is increased, the charge stored in the electrolyte is released, creating a high-current flow, which is what makes them ideal for use in power supplies.

The dielectric used in aluminum electrolytic capacitors, such as B43501A187M82, is typically either an oxide or a carbonate. The oxide is usually formed by the reaction of the electrolyte with the metal electrodes, while the carbonate is formed by the reaction of the electrolyte with the anode. The dielectric can have a significant effect on the capacitance of the capacitor and its ability to hold a charge for a long time.

Conclusion

The B43501A187M82 aluminum electrolytic capacitor is a versatile component with a wide range of uses. Its high capacitance-to-volume ratio makes it ideal for use in electronic designs, and its ability to store a charge makes it a perfect choice for use in power supplies and other applications where high current flow is needed. With the variety of dielectrics available, aluminum electrolytic capacitors can be tailored for a wide range of electronics devices.

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