LGR2E391MELB30

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Aluminum electrolytic capacitors are electronic components with a wide range of applications, from consumer electronics to industrial automation and control systems. The LGR2E391MELB30 is a radial-leaded aluminum electrolytic capacitor rated at 390uF, 25V, and 85°C. It is made with aluminum electrolytic dielectrics and is a great choice for use in both consumer and industrial applications.

Application Field

The LGR2E391MELB30 is most often used in low-voltage, high-current applications such as power-supply filtering, DC-DC converters, adapter designs, and power-switching circuits. It is also used in audio systems such as amplifiers, subwoofers, and speaker systems, as well as in automotive applications. Its low-profile, radial-leaded design makes it an ideal choice for space-constrained designs.

Working Principle

The LGR2E391MELB30 works by storing an electrical charge in a dielectric material. The dielectric material acts as an insulating material between two metal plates, one of which is connected to the power source. When power is applied, an electric field is created across the capacitor that causes ions to move from one plate to the other, creating a charge stored in the dielectric material. The charge is maintained even when power is removed from the capacitor.

The electric field also creates an electrical resistance across the capacitor’s plates, reducing the amount of current that can flow through the device. This property is known as capacitance and is measured in FARADS (F). The capacitance of the capacitor determines the amount of current that can flow through the device. The LGR2E391MELB30 has a rated capacitance of 390uF, meaning it can hold nearly 400 milliamperes of current.

Because of the insulating material between the two plates, the dielectric will degrade over time and can no longer hold a charge if it is over-stressed. Therefore, it is important to use the right values of voltage and capacitance when selecting a capacitor for a given application. By doing so, the user can achieve reliable performance and maximize the life of the LGR2E391MELB30 aluminum electrolytic capacitor.

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