ESMM421VSN681MA50T

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	2.047" (52.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	4.5045A @ 100kHz
Ripple Current @ Low Frequency:	3.15A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	SMM
Operating Temperature:	-25°C ~ 85°C
Lifetime @ Temp.:	3000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	488 mOhm @ 120Hz
Voltage - Rated:	420V
Tolerance:	±20%
Capacitance:	680µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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What are Aluminum Electrolytic Capacitors and What Do They Do?

Aluminum electrolytic capacitors, while not the most well-known electronic component, are nonetheless of major importance to electronic projects and equipment. Otherwise known as electrolytic caps (for short), they are essential for providing electrical filters, stepping electrical current up (or down), boosting signal levels, and for decoupling.The two widely-used types of aluminum electrolytic capacitors are the ESMM421VSN681MA50T and the AL8A1EN7. The ESMM421VSN681MA50T is a multi-layer capacitor, having a relatively low ESR (Equivalent Series Resistance) and a greater level of stability, making it an excellent choice for high-precision applications that require a stable voltage level output. On the other hand, the AL8A1EN7 capacitor has higher ESR, higher capacitance, and better tolerance to high-frequency current signals, making it suitable for high-current and high-frequency projects.

Application Field and Working Principle of ESMM421VSN681MA50T Aluminum Electrolytic Capacitors

Application Field

The ESMM421VSN681MA50T aluminum electrolytic capacitor is an excellent choice for projects in the following industries where a stable voltage level output is needed:-Electric motor applications-Power conditioners-DC converters-Chemical process automation-Communication systems-Motor controllers-Variable frequency drivesThe ultra-low ESR combined with its excellent temperature and frequency characteristics make it suitable for many types of demanding projects.

Working Principle

Aluminum electrolytic capacitors are made by depositing aluminum oxide film onto aluminum foil using an electrolytic process. These capacitors are polarized and require the correct biasing voltage to function properly. The capacitance of aluminum electrolytic capacitors is determined by the area of the aluminum foil plates, the thickness of the aluminum oxide film, and the distance between the plates.The working principle of these capacitors is simple. When a voltage is applied across the plates, a current will flow from one plate and towards the other. This current flowing through the electrolyte and the dielectric (Al2O3 layers) creates positive charges and ions that are attracted to the negative plate, forming an electric field between the two plates. As this electric field builds up, a capacitance is created and the current flow is limited. The capacitor will hold a certain level of charge until the voltage is removed.

Conclusion

The ESMM421VSN681MA50T aluminum electrolytic capacitor is a reliable choice for many types of demanding projects that require a stable voltage level output. Its low ESR and excellent temperature and frequency characteristics make it suitable for projects in electric motor, power conditioning, DC conversion, chemical process automation, communication systems, motor controllers, and variable frequency drives. Furthermore, its simple working principle makes it an easy-to-use and understand component.

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