LGJ2W151MELC20

Aluminum Electrolytic Capacitors are noteworthy for their extremely high capacitance, making them useful in applications requiring large capacitances and minimal space. The LGJ2W151MELC20 is one such capacitor, offering a capacitance of 1500µF and a rated voltage of 25V. It is designed to be used in pulse, filtering and ripple removing applications, due to its robustness and reliability.

It is a polarized capacitor, which means there is a distinct positive and negative terminal. This is due to the fact that traditional electrolytic capacitors need a certain amount of energy to dissolve the oxide layer. This energy determines the polarity of the terminal. Having a specific polarity means that the capacitor must be connected with the correct polarity in the circuit during installation.

The LGJ2W151MELC20 has dimension of 31.2x20mm, with an aluminum housing that is completely sealed and comparable with a liquid electrolyte. The main elements of this type of capacitor are an electrolyte and an anode, both of which are immersed in a film of dielectric material. It should be noted that when it is operated above the rated voltage, LGJ2W151MELC20 is liable to be damaged, leading to potential short circuit.

Knowing the aforementioned components that make up an electrolytic capacitor, such as aluminum housing, electrolyte and anode, we can better understand how it works. It all begins with the application of a voltage across the capacitor terminals. This allows the electrolyte to dissolve the oxide layer, forming a metallized anode. This is the key to working principle of LGJ2W151MELC20, because it creates a storage medium that can hold an electrical charge. When this happens, the capacitor can now act as a storage device, and will begin to store electrical energy in its internal components.

A further consequence of the application of voltage, is that it causes the electrical field to build up and increase the thickness of the dielectric medium. This poses a limit in the amount of current or voltage that the capacitor can handle. The capacity of the capacitor is therefore determined by the amount of voltage applied to it and the current it can be supplied with.

In conclusion, the LGJ2W151MELC20 is a polarized aluminum electrolytic capacitor that offers a capacitance of 1500µF and rated voltage of 25V. It is suitable for pulse, filtering and ripple removing applications and is constructed with an aluminum housing, electrolyte and an anode. The capacitor stores electrical energy, the capacitance being determined by the voltage applied to it and the current it can be supplied with.