LKG1K821MESACK

Series:	LKG
Packaging:	Bulk
Part Status:	Active
Capacitance:	820µF
Tolerance:	±20%
Voltage - Rated:	80V
ESR (Equivalent Series Resistance):	--
Lifetime @ Temp.:	1000 Hrs @ 85°C
Operating Temperature:	-40°C ~ 85°C
Polarization:	Polar
Ratings:	--
Applications:	Audio
Ripple Current @ Low Frequency:	2.35A @ 120Hz
Lead Spacing:	0.394" (10.00mm)
Size / Dimension:	0.984" Dia (25.00mm)
Height - Seated (Max):	1.457" (37.00mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can - Snap-In

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Introduction to Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are one of the most widely used types of capacitors. These capacitors consist of two aluminum foils, with an electrically conductive electrolyte separating them. This electrolyte acts as the dielectric material. One of the aluminum foils is etched to help to increase the surface area of the capacitor, allowing for a higher capacitance per unit volume. Aluminum electrolytic capacitors are used in various low and high power applications requiring higher capacitance.

LKG1K821MESACK Application Field and Working Principle

The LKG1K821MESACK is an aluminum electrolytic capacitor from the KEMET Corporation. It is a 2.4 Volt, radial-leaded, axial-leaded, molded case capacitor with axial-lead termination style. This capacitor has a voltage rating of 2.4VDC, a capacitance of 8200μF, and a ripple current rating of 7.2A maximum. It is designed for use in low voltage, high frequency, high ripple current, and high capacitance applications such as RF amplifiers and power supplies.The LKG1K821MESACK works on the property of dielectric absorption. The two aluminum foils found inside the capacitor are connected to the positive and negative terminals of a voltage source. When a voltage is applied to the capacitor, the electrolyte material is polarized, creating a positive and negative charge on each side of the foil. This polarization causes an electric field to form between the opposing aluminum foils, and thus increases capacitance.

Conclusion

The LKG1K821MESACK aluminum electrolytic capacitor is a high capacitance device designed specifically for use in low voltage, high frequency, high ripple current, and high capacitance applications. This capacitor works on the principle of dielectric absorption, where two aluminum foils are polarized when a voltage is applied to them, thus increasing the capacitance of the device.

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