LKX2D391MESY40

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.654" (42.00mm)
Size / Dimension:	0.787" Dia (20.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	1.965A @ 50kHz
Ripple Current @ Low Frequency:	1.31A @ 120Hz
Applications:	Audio
Ratings:	--
Series:	LKX
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	200V
Tolerance:	±20%
Capacitance:	390µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

LKX2D391MESY40 Application Field and Working Principle

Aluminum electrolytic capacitors are widely used for various electrical and electronic applications, and they are available in a wide range of sizes and package options. The LKX2D391MESY40 is an aluminum electrolytic capacitor manufactured by TDK which comes with a standard lifetime of 2,000 hours. It is a radial leaded product and has an ESR of 0.65 mΩ. This aluminum electrolytic capacitor is also highly reliable and has a low-dissipation factor.

Application Field

The LKX2D391MESY40 aluminum electrolytic capacitor has a wide range of applications. It is ideal for switching power supplies, inverters, LED lighting, audio equipment and mobile power applications. It is also suitable for use in noise suppression and filtering applications, as it has a low ESR and low internal dissipation.

Working Principle

Aluminum electrolytic capacitors use the electrochemical properties of an electrolyte to store an electrical charge. This means that they have two electrical poles: a positive one connected to the anode and a negative one connected to the cathode. The two layers separated by a dielectric material, a gel or a film, are placed in an electrolyte solution of metal ions.When a voltage is applied, the electrolyte ionizes and the anion inside of it exchanges electrons with the cathode, creating an electric current. This current is one of the processes that create the capacitance of the capacitor. The second process is the accumulation of ions on the anode, which causes the dielectric layer to become charged. This allows electrons to flow freely between the anode and cathode and creates the capacitive effect.When the capacitor is discharged, the reverse of the above processes occur: the ions are released from the anode and the molecular structures that store the charge on the dielectric layer become reordered.In summary, the LKX2D391MESY40 aluminum electrolytic capacitor has a wide range of applications due to its low dissipation factor and high reliability. Its working principle involves the ionization of the electrolyte and the accumulation and release of charged particles on the anode and dielectric layer respectively.

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