UKW2A470MPD

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Aluminum electrolytic capacitors are extensively used in electronic products. The UKW2A470MPD is one type of electrolytic capacitor from KEMET. It utilizes wet electrolytic technology to produce high capacitance and low ESR value, making it suitable for numerous applications. This article will discuss the application fields and working principles of the UKW2A470MPD.

The UKW2A470MPD is widely used in the following areas: automotive, consumer electronics, RF and data com equipment, audio and video systems, instrumentation, medical, industrial, aerospace and marine products. For automotive applications, the UKW2A470MPD helps with battery decoupling and filtering, as well as controlling the charging current entering the battery, which increases the life of the battery.

For consumer electronics, the UKW2A470MPD can reduce DC power ripple and high-frequency interference, thereby improving the accuracy of instrumentation and the performance of audio and video equipment. Furthermore, it helps to protect equipment from transient over-voltage. In data com equipment, the capacitor provides filtering for EMC high-frequency noise and helps to protect sensitive components. In radio frequency (RF) equipment, this capacitor is used to improve signal quality and reduce RF interference.

The working principle of the UKW2A470MPD is based on the Faraday law of electrolysis. When a voltage source is connected to two electrodes of the capacitor, electrical current will flow from the positive to the negative electrode through the electrolyte. The electrolyte acts as an insulator, so most of the current flows along the surface of the capacitor’s electrodes. The electric field generated between the electrodes will cause the ions of the electrolyte to move towards the electrodes, thereby depositing a thin layer of electrons on the positively charged electrode and forming a negatively charged layer on the negatively charged electrode. This is how the capacitor obtains its capacitance.

In the UKW2A470MPD, the electrodes are constructed from two layers of aluminum foil and a thin layer of aluminum oxide is formed between them. The aluminum oxide layer is an excellent insulator and allows the capacitor to achieve its high capacitance and low ESR values. Additionally, the electrolyte used in the capacitor is designed to provide excellent insulation and low leakage current.

In conclusion, the UKW2A470MPD capacitor is suitable for numerous applications and has the advantage of low ERS and high capacitance values. Its working principle is rooted in Faraday’s Law of electrolysis. The aluminum oxide layer between the electrodes and the high-quality electrolyte used in the capacitor are both instrumental in enabling the capacitor to achieve these capabilities.

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