Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of capacitor that uses an aluminum foil with an oxide layer on its surface as the anode electrode and a liquid, generally an aqueous solution of ethylene glycol, as the electrolyte. The dielectric layer between the anode and the cathode gives the capacitor its capacitance. The most common type of aluminum electrolytic capacitor is the axial lead capacitor.

397LMX200M2CD Application Field

The 397LMX200M2CD is a miniature aluminum electrolytic capacitor typically used in applications that require a very small form factor. This type of capacitor features an axial leaded construction with a rated voltage of 50V and a capacitance of 200uF. The 397LMX200M2CD is suitable for use in applications such as power supplies, audio signal processing, and embedded systems. In addition, this capacitor has a high ripple current capability and excellent capacitance stability over time.

397LMX200M2CD Working Principle

As an aluminum electrolytic capacitor, the 397LMX200M2CD relies on an anode made of aluminum foil and a thin layer of oxide deposited on the anode\'s surface to provide its capacitance. This dielectric material provides insulation between the two conducting plates of the capacitor. The oxide layer is then contacted by an electrolyte solution, generally ethylene glycol, which together with the dielectric layer provides the charge storage capability of the capacitor.

The capacitance of the 397LMX200M2CD is a result of the area of the aluminum foil plates, the thickness of the oxide layer, and the amount of liquid electrolyte used. The capacitance tends to vary with age due to changes in the oxide layer on the aluminum surface. With each charge and discharge cycle, the oxide layer becomes thinner, thus reducing the capacitance of the capacitor. The 397LMX200M2CD is rated for over 5,000 charge/discharge cycles at its rated voltage before its capacitance drops below its specified value.

Conclusion

The 397LMX200M2CD aluminum electrolytic capacitor is a miniature component designed for operation in a wide variety of applications. Its anode is composed of aluminum foil with an oxide layer on its surface which, combined with an electrolyte solution, provides the capacitor\'s capacitance. The capacitance of this component is relatively stable over time, but it does degrade due to the thinning of the oxide layer, thus reducing its capacitance. The 397LMX200M2CD is well-suited to applications such as power supplies, audio signal processing, and embedded systems.