LGX2H271MELC40

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.654" (42.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	2.0306A @ 50kHz
Ripple Current @ Low Frequency:	1.42A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	LGX
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	5000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	500V
Tolerance:	±20%
Capacitance:	270µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Aluminum electrolytic capacitors are one of the most common types of capacitors used in electrical and electronic circuits. Aluminum electrolytic capacitors are made up of two aluminum foils which are separated by an electrolyte. One of the foils acts as an anode which is the positive side of the capacitor and the other is a cathode which is the negative side. The LGX2H271MELC40 is a radial leaded aluminum electrolytic capacitor. It is a low-ESR (equivalent series resistance) capacitor with a non-solid electrolyte.

Application Field and Working Principle

The LGX2H271MELC40 is a general purpose aluminum electrolytic capacitor which is suitable for a wide range of applications such as power supplies, motor drives, lighting control systems and audio equipment. It is commonly used in DC and AC motor drives, LED lighting, inverters, Uninterruptible Power Supplies (UPS), renewable energy systems, and audio equipment.The working principle of an aluminum electrolytic capacitor is based on Faraday’s law of induction which states that when a voltage is applied across a conductor, a counter electrode is induced inside the electrolyte causing the current flow through the capacitor. This current flow causes a buildup of charge, and hence the capacitor is formed. The LGX2H271MELC40 is formed using aluminum foil and electrolyte which is sealed in a can. When a voltage is applied across the two terminals, the anode (positive) terminal will attract the positive ions in the electrolyte, and the cathode (negative) terminal will attract the negative ions. This will cause a current flow through the capacitor. As the current flows, a buildup of charge builds up on the anode and builds up a negative charge on the cathode. This creates an electric field between the positive anode and the negative cathode. As the charge builds up, it has a dielectric effect which is a form of energy storage. This dielectric effect is what makes the capacitor useful for energy storage and for filtering in AC applications. This energy storage is what gives the capacitor its capacitance.

Conclusion

The LGX2H271MELC40 is a general purpose aluminum electrolytic capacitor which is suitable for a wide range of applications. Its low-ESR and non-solid electrolyte make it ideal for applications where long life and high performance are required. The capacitor works on Faraday’s law of induction and creates an electric field between its two plates when a voltage is applied. This electric field creates a dielectric effect which stores energy and allows the capacitor to act as a filter and an energy storage device.

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