400SXW68MEFC18X40

Operating Temperature:	-25°C ~ 105°C
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.654" (42.00mm)
Size / Dimension:	0.709" Dia (18.00mm)
Lead Spacing:	0.295" (7.50mm)
Ripple Current @ Low Frequency:	420mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Polarization:	Polar
Series:	SXW
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	68µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are electrical components that can store energy and transfer it for certain electrical applications. They are made up of two metallic plates separated by an electrolytic material that is filled with an electrolyte, usually an organic solvent containing positive ions and negative ions. This gives the capacitor a great energy density, compared to other types of capacitors.The most common type of aluminum electrolytic capacitor is the 400SXW68MEFC18X40, which has a capacity of 0.68µF and a working voltage of 18V. It is typically used in AC/DC power converters, as well as voltage filter and noise suppression, switching power supplies, and electrical motor controllers.

Working Principle

The 400SXW68MEFC18X40 works based on the principle of electrolysis, and it typically consists of a cylindrical aluminum can and two metallic plates. The plates are separated by an electrolyte, typically an organic solvent containing positive and negative ions. The electrolyte, when charged, allows the ions to move between the two plates, exchanging electric charge. This process allows the capacitor to store energy and transfer it for certain electrical applications.When electricity is applied, the capacitors draw current and store energy. When the electric charge is released, this stored energy is transformed into a voltage difference between the plates. This process is used to transfer power for electronic applications such as filtering and noise suppression.

Applications

The 400SXW68MEFC18X40 is most commonly used for AC/DC power converters, particularly for voltage filtering and noise suppression. In these applications, it is used to reduce the noise interference in an electrical system while smoothing out the voltage. It can also be used in switching power supplies, as well as electrical motor controllers, where it is used to maintain steady power supply and reduce the voltage ripple.The capacitors can also be used in critical electrical applications such as radio and communication systems, where they are used to reduce noise and support signal transmission. Additionally, they are used in LED lighting, audio equipment, and gauge clusters, where it is used to filter out noise and provide stable power.In conclusion, aluminum electrolytic capacitors, including the 400SXW68MEFC18X40, are widely used in various industries for different applications. They are an efficient way to provide electrical power and reduce noise interference, while also providing a great energy density to store energy.

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