LLG2W391MELC30

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.260" (32.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	3.003A @ 50kHz
Ripple Current @ Low Frequency:	2.1A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	LLG
Operating Temperature:	-25°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	450V
Tolerance:	±20%
Capacitance:	390µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Electrolytic capacitors are widely used in various electrical and electronic circuits due to their superiority in terms of higher capacitance and big capacitance-voltage characteristics. Aluminum electrolytic capacitors are often based on aluminum electrolyte structures. The LLG2W391MELC30 is a popular aluminum electrolytic capacitor used in many circuits, and it is essential to understand its application fields and working principles in order to benefit from its advantages and choose the right one for your needs.

Application Fields of LLG2W391MELC30

The LLG2W391MELC30 is a non-polarized capacitor that is characterized by its high-voltage performance and board temperature range of -25 to +85 degrees Celsius. This makes it suitable for applications in a wide variety of fields, such as automotive electronics, audio and video systems, telecommunication systems, digital power supplies, and precision measurement systems. For example, in automotive electronics, the LLG2W391MELC30 can be used for power supply filtering in motorized windows, sunroofs, locks, and other accessories. Additionally, it can be used to regulate current in Hybrid Electric Vehicles (HEV) and Electric Vehicles (EV) as well as for power supply bypassing and filter control in the audio and video systems. In precision measurement systems, the capacitor is often used in SAW filters, resonators, and filters for communication systems, oscillators, and filters in test instruments, and for decoupling supplies in precision measuring circuits.In digital power supplies, it is suitable for controlling current peaks in control systems, power supply regulation, and for filtering ripple in DC/DC converters.

Working Principle of LLG2W391MELC30

The working principle of the LLG2W391MELC30 is based on the same principles used in any other aluminum electrolytic capacitor. This type of capacitor is constructed by rolling electrolytic and anodized aluminum sheets together, with each plate separated from the other by an electrolyte. When a voltage is applied to the capacitor, an electric field is created that generates current within the aluminum layers. This current passes through the dielectric layer, which stores the energy and builds up the capacitance. The capacitor also works in reverse; if a voltage is applied, the current will flow in the opposite direction and release the energy stored in the capacitor. This type of capacitor is often considered to be a high-value and low-cost option when compared to other types of capacitors. It is also able to withstand high current and high-frequency switching and can be used in a wide range of temperatures. Additionally, it is able to withstand high voltage and can work for long periods without any deterioration.

Conclusion

The LLG2W391MELC30 is a popular aluminum electrolytic capacitor used in many circuits due to its high-voltage performance, board temperature range of -25 to +85 degrees Celsius, and its ability to withstand high current and high-frequency switching. Its application fields include automotive electronics, audio and video systems, precision measurement systems, and digital power supplies. Its working principle is based on the same principles used in any other aluminum electrolytic capacitor, in which an electric field is created that generates current within the aluminum layers and stores the energy within the dielectric layer.

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