420QXW56MEFC12.5X30 Datasheet/PDFAluminum electrolytic capacitors are one of the most widely used capacitors in many electronic and electrical circuits. 420QXW56MEFC12.5X30 is an aluminum electrolytic capacitor with large capacitance. In the field of electrical engineering and electronics, it is widely used in communication equipment power supply systems, medical equipment, audio-visual equipment, instruments and meters, solar energy and other fields.
Application Field
420QXW56MEFC12.5X30 can be used for noise filtered circuits, bypass circuit of signal transmission line, signal buffering circuits, smoothing circuits in AC/DC power, charge-discharge circuit, phase compensation of AC/DC motors, interference suppressing circuit of high voltage power supply system, and frequency resonance damping circuit in radar communication.
420QXW56MEFC12.5X30 have the following advantages: low ESR, high ripple current capacity, good stability, high reliability and long life.
Working Principle
The operating principle of 420QXW56MEFC12.5X30 is based on two aluminum foil electrodes and a dielectric material in the form of a thin oxide layer between the electrodes. The aluminum foil electrodes are immersed in a liquid electrolyte, a mixture of liquid and solid particles, which provides ions and promotes the formation of an aluminum oxide film on the electrode surface.
When an anode voltage is applied to the capacitor, a voltage drop appears across the oxide layer, resulting in a depletion of the electrolyte between the two electrodes. This creates an electric field between the two electrodes and a potential difference. The potential difference between the two electrodes can be adjusted by changing the thickness of the oxide layer. The higher the voltage applied to the anode, the higher the potential difference, and vice versa.
In operation, 420QXW56MEFC12.5X30 is typically used for storing charge in electrical circuit applications. It stores charge and releases it as needed. It also provides filtering of high frequency AC ripple signals. The capacitor has a low equivalent series resistance, or ESR, which ensures that it can handle large amounts of current without significantly dropping its voltage. This makes it an excellent choice for high power applications.
In conclusion, electronic devices that use aluminum electrolytic capacitors, like 420QXW56MEFC12.5X30, need the capacitors to be robust and reliable. The combination of the oxide layer, the electrolyte, and the aluminum electrode plates provide this. This makes them a great choice for many applications.