EKMH401VNN821MA63S

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	2.559" (65.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	3.6465A @ 100kHz
Ripple Current @ Low Frequency:	2.55A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	KMH
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	303 mOhm @ 120Hz
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	820µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

An EKMH401VNN821MA63S aluminum electrolytic capacitor is a component used mainly in high-power electronic devices, from medium-sized power supplies to large consumer electronics. These capacitors are designed with large capacitance and high voltage ratings. Due to their small size and good performance, they are widely used in various electrical circuits.

Structure and Working Principle

The EKMH401VNN821MA63S aluminum electrolytic capacitor is generally composed of an aluminum containing electrolyte, two electrodes (an anode and a cathode) separated by a dielectric, and a pressure release terminal. It consists of an anode made of aluminum foil which is tightly overlaid with paper, as well as a cathode made of an electrolytic solution made of organic solvent and acidic acid. This makes the structure of the capacitor very thin and enables a stable working voltage.The working principle of the EKMH401VNN821MA63S aluminum electrolytic capacitor is very simple. When a voltage is applied across the terminals, the electrolyte is ionized and electrons flow from the anode to the cathode, creating an electrical current. The ions accumulate on the anode and form a thin layer of oxide, while the polarizing electric currents move from the positive pole to the negative pole through the ionized electrolyte, producing an electric field and electric charge which store energy.

Application Areas

Due to its high capacitance, high voltage rating, and metalized design, the EKMH401VNN821MA63S aluminum electrolytic capacitor is ideally suited to high-power applications, such as power supplies, inverters, and battery backup systems. Additionally, they can be found in a variety of consumer electronics, such as PCs, gaming consoles, cell phones, digital cameras, and other household appliances.Generally speaking, these capacitors are used to store energy, enhance performance, and reduce harmonics in the system. In addition, they are also used to reduce the noise level and ripple voltage of a power system. For instance, in an inverter system, the capacitor helps to reduce the switching losses, power consumption, and total harmonic distortion. Due to their high capacitance, they are also often used in noise suppression filters, such as EMI (electromagnetic interference) filters, as well as audio and video filters. Additionally, they can also be used as input and output capacitors in switching power supplies and voltage regulators.

Conclusion

The EKMH401VNN821MA63S aluminum electrolytic capacitor is a component used mainly in high-power electronic devices, from medium-sized power supplies to large consumer electronics, due to its small size and good performance. Its working principle is very simple, and it is mainly used to store energy, enhance performance, and reduce harmonics in the system. Furthermore, these capacitors can be found in a variety of applications, from power supplies, inverters, and battery backup systems, to noise suppression filters, such as EMI filters, audio and video filters, and power supplies and voltage regulators.

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