UPM1E390MDD

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Aluminum electrolytic capacitors consist of a power cylinder that contains two electrodes, each separated by an electrolytic paper separator. The outer cylinders are filled with a solution of aluminum oxide, the core of the capacitor. This solution acts as an electrical insulator, preventing current from traveling between the electrodes. The electrodes are usually made of ultra-pure aluminum foil and/or titanium. The foil and/or titanium is then plated with a thin layer of electrolytic paper, typically consisting of low-resistivity polyvinyl alcohol (PVA).

UPM1E390MDD is an aluminum electrolytic capacitor which belongs to the UPM series. It is an E type capacitor with high voltage power rating of 390V and maximum ripple current of 20A. The UPM1E390MDD has a robust design, featuring a screw terminal connection for maximum robustness. This allows for easy access and secure connection to any existing system. Its design also comes with a hermetically sealed outer case which makes it dustproof and waterproof.

UPM1E390MDD is mainly used in areas where big capacitance values and long life time is needed. It is particularly suitable for use in power supplies, inverters, and other power circuits. It is also often found in motor drives, lighting, UPS, welding machines,among others. Moreover, the hermetically sealed outer case makes it ideal as a power safety element in hazardous environments.

When it comes to working principle, the UPM1E390MDD utilizes the principle of capacitive reactance, which states that changes in voltage in a circuit are proportional to changes in current. This is achieved by having two charged conductors, separated by a dielectric material. When a voltage is applied across the two conductors, the resultant current between them is dependent on the capacitance of the conductor. This means that the more capacitance a capacitor has, the higher the current will be.

In the case of the UPM1E390MDD, the circuit is formed by the two charged electrodes. The electrolytic paper separator and the aluminum oxide-filled outer casing act as the dielectric material, preventing the direct flow of current between the electrodes. When a voltage is applied, the current causes a change in the electric field between the two electrodes. This change in electric field is proportional to the capacitance, and thus to the amount of current flowing between the two electrodes.

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