MAL205657332E3

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.260" (32.00mm)
Size / Dimension:	0.866" Dia (22.00mm)
Lead Spacing:	0.394" (10.00mm)
Impedance:	45 mOhms
Ripple Current @ Low Frequency:	2.09A @ 100Hz
Applications:	Audio
Ratings:	--
Series:	056 PSM-SI
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	12000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	67 mOhm @ 100Hz
Voltage - Rated:	40V
Tolerance:	±20%
Capacitance:	3300µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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MAL205657332E3 Aluminum Electrolytic Capacitors IntroductionAluminum electrolytic capacitors are part of the major electrical components that are widely used in domestic electronics and alternative power sources. They are polar capacitors with a dielectric composed of aluminum oxide that is formed on the anode surface. The anode is then wound with an electrolytic paper into a capacitor. The electrolyte, usually an aqueous solution, provides the ionic conduction path between the anode and the cathode. These capacitors are excellent for applications where large amounts of capacity and high voltage withstands are needed. Application FieldMAL205657332E3 aluminum electrolytic capacitors are used in just about every electronic product imaginable including automotive, telecommunications, computers, audio, video, digital still cameras, and household appliances. They guarantee maximum performance in terms of temperature compensation, minimization of size, power loss, and distortion. They are also often used to decouple power supply lines in a circuit, filter high frequency interference, and store energy in DC-DC converters and inverters. Working PrincipleThe working principle behind aluminum electrolytic capacitors is simple: positively charged ions are released into the electrolyte during the polarization process, forming an oxide layer on the anode. This oxide layer acts as a dielectric and stores energy with the help of the electrical charge created by the current in the circuit. The capacitance is determined by the physical parameters of the capacitor, including its surface area, dielectric constant, and distance between the plates. AdvantagesAluminum electrolytic capacitors have several advantages over other types of capacitors:• High capacitance-to-volume ratio – aluminum electrolytic capacitors have a much higher capacitance-to-volume ratio than other types of capacitors. This means they can provide more energy storage in a smaller package.• Long lifetime – aluminum electrolytic capacitors have a much longer lifetime than other types of capacitors due to their low leakage current. • Low temperature dependence – the capacitance of an aluminum electrolytic capacitor is not affected as much by temperature changes than other types of capacitors. • High voltage ratings – the high voltage rating of aluminum electrolytic capacitors make them an ideal choice for circuits with high voltage needs. • Low cost – aluminum electrolytic capacitors are generally a lot cheaper than other types of capacitors. DrawbacksThe main drawback of aluminum electrolytic capacitors is their relatively short lifespan. Due to the electrolytic nature of the dielectric material, these capacitors tend to lose their capacitance over time. This is caused by the aging process of the electrolytic paper, which reduces its ability to hold a charge. Additionally, aluminum electrolytic capacitors can be sensitive to vibration and shock, and they are vulnerable to overvoltage due to their polar construction. ConclusionMAL205657332E3 aluminum electrolytic capacitors are an essential part of every electronic product thanks to their high capacitance-to-volume ratio, long lifetime, low temperature dependence, high voltage ratings, and low cost. Despite their shortcomings, these capacitors are still a popular choice for high voltage, large capacity applications.

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