381LR471M250H032

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Aluminum Electrolytic Capacitors – 381LR471M250H032 Application Field and Working Principle

Aluminum electrolytic capacitors are low cost and highly versatile devices which are widely used in circuit applications. They are composed of three primary components: an aluminum foil, a dielectric electret, and a conductive electrolyte. The 381LR471M250H032 is an example of this type. This capacitor has a rated voltage of 250V AC and a maximum capacitance of 47 microfarads. It is often used in power supplies, motor control, filtering, and signal conditioning circuits.

The working principle of aluminum electrolytic capacitors is based on the electrostatic field created between two charged plates. When one of the plates is charged with a positive voltage and the other with a negative voltage, an electric field is formed across the dielectric. This electric field creates a capacitance, which stores electrical energy and can be discharged in the form of an electric current.

The aluminum foil of the capacitor is also involved in the operation of the part. A conductive electrolyte is adhered to the surface which is then polarized. This polarization creates a cylindrical electrical field which is aligned along the long axis of the foil. The dielectric layer of the capacitor also plays an important role, acting as an insulating barrier between the plates and preventing the current from dissipating too quickly.

The 381LR471M250H032 is commonly used in applications requiring high current capacity and low voltage drop. Its wide operating temperature range, low equivalent series resistance (ESR) value, and high surge current capability make it well suited for applications such as switching power supplies, DC motor control circuits, and circuit filters. It is also ideal for audio frequency (AF) signal filtering, since it has excellent high frequency characteristics and excellent off-state leakage current performance.

As with all types of capacitors, the 381LR471M250H032 should not be exposed to high voltages or currents as this can lead to damage. The part should also be stored in a cool, dry place to ensure maximum longevity. It is important to pay attention to the rated voltage and capacitance of the part when selecting the right aluminum electrolytic capacitor for an application.

In conclusion, the 381LR471M250H032 is a versatile aluminum electrolytic capacitor which is suitable for many different applications. It has excellent high frequency characteristics, low voltage drop, and is capable of handling high currents. It should be stored carefully to ensure optimal performance.

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