LGJ2W121MELB20

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.866" (22.00mm)
Size / Dimension:	1.181" Dia (30.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	1.2441A @ 50kHz
Ripple Current @ Low Frequency:	870mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	LGJ
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	3000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	450V
Tolerance:	±20%
Capacitance:	120µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors are widely used in both analog and digital electronics due to their low ESR values, high energy density, large capacitance values, and low cost. The LGJ2W121MELB20 aluminum electrolytic capacitor is a very popular type which is used in a wide variety of applications. In this article, we will discuss the applications and working principles of the LGJ2W121MELB20 aluminum electrolytic capacitor.The LGJ2W121MELB20 is an aluminum electrolytic capacitor that features a low ESR value, high energy density, and large capacitance all in a small package. It is designed to be highly reliable and offers excellent performance in high frequency applications due to its low ESR value. The LGJ2W121MELB20 is also available in a range of capacitance values from 1,000 µF to 180,000 µF, allowing for a wide variety of applications.The LGJ2W121MELB20 is most commonly used for decoupling and filtering operations in both analog and digital circuits. In a decoupling application, the capacitor acts as a low impedance path for noise and other unwanted components, allowing them to be filtered before being passed onto the load. In a filtering application, the capacitor is used to block DC signal components while passing only the desired frequencies through to the output. Multiple capacitors can be connected in series, parallel, or a combination of both to form filter networks.The working principle of the LGJ2W121MELB20 is based on Faraday’s law of electrolysis. When voltage is applied, an electric field is generated between two plates (electrodes) inside the aluminum capacitor, which causes ions to move freely between them and form an electrical connection. This connection allows current to flow and charge is stored in the form of electrochemical potential energy. This allows the capacitor to store and release energy on demand, providing a stable current source for the circuit. The LGJ2W121MELB20 is a low ESR type aluminum electrolytic capacitor and is therefore suitable for high frequency and high ripple current applications. The low ESR ensures that it can handle high frequency noise and other unwanted components, as well as providing high energy density to support high speed digital operations. The relatively large capacitance values of the LGJ2W121MELB20 also allow them to act as energy storage units, providing a steady voltage supply to decrease ripple voltage and helping to reduce switching losses. The LGJ2W121MELB20 is also known for its high reliability due to its aluminum casing which helps to protect the components from heat and moisture.In conclusion, the LGJ2W121MELB20 is a versatile aluminum electrolytic capacitor which is used in a wide variety of decoupling and filtering applications. Its high reliability, low ESR value, and large capacitance values all combine to make it a popular choice among engineers. Furthermore, its low cost and small size make it an ideal choice for most small to medium electronics applications.

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