EKMM401VNN121MQ25W

Series:	KMM
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	120µF
Tolerance:	±20%
Voltage - Rated:	400V
ESR (Equivalent Series Resistance):	2.072 Ohm @ 120Hz
Lifetime @ Temp.:	3000 Hrs @ 105°C
Operating Temperature:	-25°C ~ 105°C
Polarization:	Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	730mA @ 120Hz
Ripple Current @ High Frequency:	1.0439A @ 50kHz
Lead Spacing:	0.394" (10.00mm)
Size / Dimension:	1.000" Dia (25.40mm)
Height - Seated (Max):	1.063" (27.00mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can - Snap-In

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Aluminum electrolytic capacitors, also known as aluminum electrolytic capacitors, are mainly composed of an anode with an etched surface, a porous tantalum sleeve and a dielectric oxide film, and is covered with a pressure-sensitive adhesive that seals the internal electrolyte and components. The main application field of the EKMM401VNN121MQ25W is in the field of aluminum electrolytic capacitors.The working principle of the EKMM401VNN121MQ25W aluminum electrolytic capacitor based on the above structure are summarized as three principles.First, the structure of the EKMM401VNN121MQ25W aluminum electrolytic capacitor increases the total capacitance. This is mainly due to the increase in contact area of the anode and the dielectric oxide film. The anode has a high surface area, which can store more charge than a flat surface area. The dielectric oxide film can increase the capacitance, due to its larger thickness relative to other dielectric materials.Second, the dielectric oxide film also helps increase the leakage current of the EKMM401VNN121MQ25W aluminum electrolytic capacitor. The leakage current is defined as the current that passes through the capacitor when no voltage is applied. The dielectric oxide film has many small pores, which increases the amount of leakage current that flows through the capacitor. This increases the reliability of the capacitor.Third, the electrolyte solution inside the EKMM401VNN121MQ25W acts as an electric insulator, which prevents the anode from corroding or generating electric arcs. The electrolyte solution also helps to regulate the charge and discharge cycles of the capacitor, helping to provide longterm stability. Additionally, the electrolyte solution helps to reduce the dielectric losses, which allows for increased efficiency and higher energy density.In conclusion, the EKMM401VNN121MQ25W aluminum electrolytic capacitor is an important component in a wide range of electronic circuits. Its structure, materials, and working principle allow for high capacitance, leakage current, and low dielectric losses. This makes it an ideal solution for a variety of applications, from audio equipment to power electronics.

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