Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitor is a type of capacitor that uses an aluminum oxide film as a dielectric. It works by using a thin layer of aluminum oxide being formed on the surface of an aluminum foil, separated from a conductive liquid electrolyte and the two resulting electrodes. The aluminum oxide layer is then used as a dielectric medium. The electrolyte is generally a salt solution of an organic solvent, such as propylene glycol.

UMT1H4R7MDD Application Field and Working Principle

Aluminum electrolytic capacitors have a wide range of applications in consumer electronics, automotive, and industrial electronics, such as in power supplies, power conditioning, LED lighting, and other electronic equipment. UMT1H4R7MDD is a type of aluminum electrolytic capacitor that is made of aluminum foil, a thin layer of an electrolyte and the aluminum oxide film, and a plastic sleeve. It has a wide temperature range and is highly resistant to capacitance change with temperature, making it suitable for use in harsh environments. In addition, its low dielectric absorption helps improve its ability to reduce the leakage current and its resistance to vibration.The working principle of a UMT1H4R7MDD aluminum electrolytic capacitor is based on Faraday Law. When an alternating current (AC) is passed through the capacitor, an electric field is generated that will force the electrons to cross the dielectric to a opposite electrode (the anode), thus building up a charge. This charge will increase until it reaches a certain point, at which point the electric field will start to reverse, causing the electrons to move in the opposite direction and reduce the charge. This oscillation of electrons will result in a buildup of energy in the capacitor, which can later be released as needed.

Conclusion

UMT1H4R7MDD aluminum electrolytic capacitors are widely used in the fields of consumer electronics, automotive and industrial electronics. Its wide temperature range, low dielectric absorption and excellent resistance to vibration make it an ideal choice for these applications. The device works on the basis of Faraday’s law, in which an AC current causes electrons to cross the dielectric and build up a charge in the capacitor, which can be used and released at a later point.