MALREKA00AA122LL0K

Series:	EKA
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	2.2µF
Tolerance:	±20%
Voltage - Rated:	100V
ESR (Equivalent Series Resistance):	48.3 Ohm @ 120Hz
Lifetime @ Temp.:	2000 Hrs @ 85°C
Operating Temperature:	-40°C ~ 85°C
Polarization:	Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	34mA @ 120Hz
Lead Spacing:	0.079" (2.00mm)
Size / Dimension:	0.197" Dia (5.00mm)
Height - Seated (Max):	0.492" (12.50mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can

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Aluminum Electrolytic CapacitorsAluminum electrolytic capacitors, also known as electrolytic capacitors, are polarized capacitors of the electrochemical type. They use a non-solid electrolyte (typically liquid or gel) as one of their two electrodes, which makes them especially useful for high-capacity, low-voltage applications because of their low DC resistance and their high capacitance. The working principle of aluminum electrolytic capacitors is based on the ability of electrolytes to store and release charges. The MALREKA00AA122LL0K is an aluminum electrolytic capacitor that is commonly used in switch mode power supplies and other high-frequency applications. It has a capacitance of 100 uF (microfarads), a rated voltage of 25 V, a maximum ripple current of 4500 mA and a maximum operating temperature of 105°C. This capacitor offers excellent performance in high-frequency applications and is durable enough to last in the most demanding environments.The main application field for aluminum electrolytic capacitors is switching mode power supplies (SMPS). They are used to regulate the DC voltage in power supplies, thus reducing the amount of ground noise in the output. Additionally, they are also used in signal filtering, coupling, decoupling and other applications.The working principle of an aluminum electrolytic capacitor is based on the current-limiting effect of the electrolyte. When current passes through the electrolyte, ions are attracted to the electrodes, resulting in a reduction of the available capacitance. As the current passes through the electrolyte, it also produces an electrical field that protects the electrodes from damage caused by the charge and discharge cycles.The charging and discharging of an aluminum electrolytic capacitor occurs in much the same way as other electrolytic capacitors; a voltage is applied to the capacitor in one direction, causing the plates to repel each other and forming a potential across the electrolyte surface. This potential causes an accumulation of positive and negative charges, resulting in an increase of capacitance due to the repulsive forces between the unlike charges. When the voltage is reversed, the electrons accumulate at the oppositely charged terminal, while the positive ions accumulate at the opposite terminal. This causes the capacitance to decrease as the size of the negative charge decreases. This decrease of capacitance is known as "dielectric absorption" and results in a reduction of the available capacitance. In order to maximize the capacitance of an aluminum electrolytic capacitor, it is important to limit the amount of current passing through the electrolyte. This is done by choosing a capacitor with a rated ripple current, which is the maximum amount of current that can pass through the capacitor without damaging it. This ensures that the capacitance is maintained and that the capacitor is able to perform properly in its application.In summary, the MALREKA00AA122LL0K aluminum electrolytic capacitor is an excellent choice for applications that require high-frequency, low-voltage capacitance. It is used in a wide variety of applications, including signal filtering, signal coupling, decoupling, and power supplies. The working principle of aluminum electrolytic capacitors is based on the current-limiting effect of the electrolyte, which helps to maintain the capacitance and ensure that the circuit performs properly.

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