ELXM221VSN331MP35S

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.457" (37.00mm)
Size / Dimension:	0.866" Dia (22.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	1.785A @ 50kHz
Ripple Current @ Low Frequency:	1.19A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	LXM
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	7000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	220V
Tolerance:	±20%
Capacitance:	330µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction
Aluminum Electrolytic Capacitors (also known as Al-ECs, ALECs, or AECs) are electronic components that are used to store electrical energy in various forms. Unlike most capacitors, they do not rely on the dielectric properties of a material, but rather on the electrical conductivity of electrolyte and the wet-chemical reaction of electrodes. Through this specific construction, ALECs can provide a large amount of electrical energy, with a relatively small size. In this article, we\'ll look at the ELXM221VSN331MP35S AL-EC\'s application field and its working principle.
Application field
The ELXM221VSN331MP35S Al-EC is designed for filtering, smoothing, and buffering large currents in power line converters, motor drives, battery charger applications, motor starters, power supply units, and a variety of other power electronics. It\'s also suitable for medical power line and LED lighting applications. ELXM221VSN331MP35S Al-EC provides high ripple current, low profile, high reliability, and long life in a variety of wet environments including electronics cooling systems, washing machines, and other wet applications. As such, it is ideal for a range of applications like temperature control, motor drives, variable speed control, and over-voltage/over-current protection.
Working principle
The ELXM221VSN331MP35S AL-EC\'s core component is a thin metallic electrolytic foil immersed in a wet electrolyte. Depending on the specific application, the foil may be made out of aluminum or tantalum, but usually it is aluminum in this particular AL-EC. Between the electrolyte and the foil are two insulated electrodes. When the positive terminal of the capacitor is connected to the aluminum foil, and the negative terminal is connected to the electrolyte, an electrical field is created. This field causes an electrochemical reaction between the foil and the electrolyte, creating a capacitance. This capacitance allows the capacitor to store electrical energy, and to retain it even when the voltage drops or the current is interrupted.
The ELXM221VSN331MP35S AL-EC features a foil construction in which the aluminum foil is insulated with a thin layer of polypropylene. This insulation layer allows the aluminum foil to remain energized longer, and hence it provides the capacitor with a higher capacitance. Additionally, the capacitor has a built-in current sensor and current limiter, protecting it from over-voltage and over-current conditions. Thanks to its construction, this AL-EC offers good ripple current performance, high reliability, and a long life.
Conclusion
The ELXM221VSN331MP35S AL-EC is designed for filtering, smoothing, and buffering large currents in power line converters, motor drives, battery charger applications, and other power electronics. This particular AL-EC is made out of aluminum foil which is insulated with a thin layer of polypropylene and it features a built-in current sensor and current limiter. Thanks to its construction, it provides good ripple current performance, high reliability, and a long life in a variety of wet environments, making it ideal for a wide range of applications.

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