LGJ2Z121MELY

Operating Temperature:	-40°C ~ 105°C
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.669" (17.00mm)
Size / Dimension:	0.787" Dia (20.00mm)
Lead Spacing:	0.394" (10.00mm)
Applications:	General Purpose
Ratings:	--
Polarization:	Polar
Series:	LGJ
Lifetime @ Temp.:	3000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	180V
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

Aluminum electrolytic capacitors are the most commonly used form of capacitor. They are widely used in consumer electronics and also increasingly used in automotive and industrial applications. The LGJ2Z121MELY is an aluminum electrolytic capacitor specifically designed for power supply applications. It is characterized by its extremely high capacitance, low leakage current, and a long life. This article will discuss the application field and working principle of the LGJ2Z121MELY.

Application Field of the LGJ2Z121MELY

The LGJ2Z121MELY is often used in power supply design applications. Its main advantage is its large capacitance, which allows it to have very low ESR (equivalent series resistance) and relatively low losses even at high frequencies. This makes it ideal for high frequency switching power supplies that require high reliability, high output power, and low losses. It is often used in DC/DC converters, switching power amplifiers, and LCD TVs.

Working Principle of the LGJ2Z121MELY

The LGJ2Z121MELY is an aluminum electrolytic capacitor, which utilizes the electrolytic effect to store energy in a capacitor. An electrolytic cell consists of two electrodes, a metal anode and an electrolyte-soaked paper or foil cathode. When a current is applied to the electrolyte, the metal anode oxidizes, forming an oxide film on its surface. This oxide film acts as an insulator and prevents further oxidation from occurring in the cell. This forms a storage chamber where energy is stored in the form of electrical charge.The LGJ2Z121MELY is a polarized capacitor, meaning it has two anodes and one cathode. The amount of charge stored depends on the voltage applied across the capacitor, which causes more electrons to be stored at the anode and less at the cathode. This causes a potential difference between the anode and cathode and thus, an electric field forms. When a current passes through the capacitor, the electric field causes a displacement current to flow between the electrodes, resulting in energy storage.

Conclusion

The LGJ2Z121MELY is an aluminum electrolytic capacitor designed for power supply applications. Its high capacitance allows it to have very low ESR and low losses even at high frequencies, making it ideal for high frequency switching power supplies. It works by utilizing the electrolytic effect to store energy in a capacitor, with the amount of charge stored depending on the voltage applied across the capacitor. This article has explored the application field and working principle of the LGJ2Z121MELY.

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