Aluminum Electrolytic Capacitors

The 381LQ821M315A042 aluminum electrolytic capacitor is an extremely reliable part that fits in a wide range of application fields. It is a type of polarized capacitor that is designed to handle large amounts of energy and current. It has a series of features that make it well-suited to its various applications.

Application Field

The 381LQ821M315A042 is primarily used as an energy storage device for audio and other signal paths. It can be used as a filter capacitor in switching power supplies, and is commonly used in power conditioning circuits for amplifiers and DJ turntables. It is also found in some digital audio players and recorders, and can be used as part of a voltage multiplier circuit. Additionally, this capacitor may be used in some automotive electronics applications, where it can supplement the main power supply of a car or other vehicle.

Working Principle

As its name suggests, the 381LQ821M315A042 is an aluminum electrolytic capacitor. This type of capacitor utilizes a chemical reaction between aluminum metal and an electrolyte to create a dielectric layer between two metal plates. This dielectric layer provides a barrier between the two plates, allowing the capacitor to store and discharge electric energy.

In order for the electrolytic capacitor to work correctly and safely, the plate material must be completely covered by the electrolyte, and the dielectric layer must be uniform and non-porous. The electrolyte also serves as an insulating layer to prevent current leakage. When electricity is applied to the plates, the electrolyte helps to release energy by breaking down the aluminum molecules and allowing electrons to flow freely.

The 381LQ821M315A042 is designed with two pins that connect one plate to another, allowing the interior of the capacitor to become electrically charged. When a circuit is connected to the plates through these pins, electric energy will flow from one plate to the other, allowing the capacitor to store and discharge energy. This capacitor is rated at 2.0V with a capacitance of 8.2μF, which means it is capable of storing 8.2 microfarads of electric energy.

Conclusion

The 381LQ821M315A042 aluminum electrolytic capacitor is a reliable and versatile component that offers excellent performance in a range of applications. Its ability to store large amounts of energy and current make it particularly well-suited to audio and power conditioning applications. Additionally, its working principle makes it especially attractive for use in automotive electronics, and its pins allow it to be easily connected to a circuit.