MAL202128108E3

Polarization:	Polar
Package / Case:	Axial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	--
Size / Dimension:	0.177" Dia x 0.394" L (4.50mm x 10.00mm)
Lead Spacing:	--
Impedance:	55 Ohms
Ripple Current @ Low Frequency:	12mA @ 100Hz
Applications:	General Purpose
Ratings:	--
Series:	021 ASM
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	2500 Hrs @ 85°C
ESR (Equivalent Series Resistance):	150 Ohm @ 100Hz
Voltage - Rated:	63V
Tolerance:	±20%
Capacitance:	1µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Aluminum Electrolytic CapacitorsAluminum electrolytic capacitors are widely used in electronics in many industries because of their distinguishing features such as large capacitance values, low equivalent series resistance (ESR) and long life cycles. They are made of a porous anode aluminum foil, a liquid electrolyte and a metal oxide dielectric layer. There are two types of aluminum electrolytic capacitors: axial lead and radial lead.The MAL202128108E3 is a radial lead aluminum electrolytic capacitor which has a capacitance value of 1000 μF, a voltage rating of 25 V and a tolerance of ±20%. It can be used in many different application fields where a low ESR and a high capacitance value are needed.ApplicationsThe most common applications of the MAL202128108E3 capacitor include power supplies, computer power supplies, LCD monitors, LED lighting, precision instrumentation, and Automotive electronics.In power supplies, the MAL202128108E3 can be used as an input or output filter capacitor to reduce the ripple voltage and to reduce interference. It can also be used to smoothen the voltage waveforms and to control and reduce power losses.In computer power supplies, the capacitor can act as a buffer capacitor when used together with an energy storage inductor. This buffers the voltage when the power supply is started or when the load changes abruptly. It also reduces the AC ripple from the power source, protecting the rest of the circuitry from damaging voltage spikes.The MAL202128108E3 capacitor can also provide power supply stability for LCD monitors. It is used as an output filter to reduce ripple voltage and interference and provide a steady supply of voltage to the backlight LED.The capacitor can be used in LED lighting applications as an energy storage device. It helps to boost the DC supply when the LED is started and helps to sustain the power during short circuit conditions or when the voltage drops too low.In precision instrumentation, the capacitor can be used as a feedback capacitor in active filters and signal conditioning circuits to reduce noise changes from the power source.The capacitor can also be used in Automotive electronics to reduce interference from the Alternator and to provide a smooth DC voltage supply for the ECU.Working PrincipleThe MAL202128108E3 capacitor works on a dielectric principle. Inside the capacitor, there are two electrodes which are separated by a thin oxide layer. This oxide layer acts as a dielectric. When a voltage is applied, an electric field is created in the oxide dielectric layer. This electric field causes an accumulation of electrons at one side of the electrodes, forming a capacitive effect. This reduces the current flow in the circuit and increases the capacitance.When a direct current is applied, the electric field causes a polarized current to flow in the dielectric, creating an electric double layer. This increases the capacitance of the capacitor. As the current passes through the capacitor, the electric field produces an opposing voltage which is referred to as the back power voltage. This voltage is released in the form of heat, which is dissipated from the capacitor.The MAL202128108E3 capacitor is capable of operating at high temperatures and it is also resistant to damage from voltage spikes. This makes it a reliable capacitor for various applications that require a high capacitance value and low ESR.

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