EEU-FR1E680B Capacitors

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Aluminum electrolytic capacitors are the most popular type of capacitor, providing good capacitance at a low cost and typically occupying a small size. The EEU-FR1E680B, from the Panasonic factory, is an aluminum electrolytic capacitor with a standard electrolyte and a rated voltage of 25V to 50V, with a capacitance of 680 μF and a tolerance of 20%. It is a cylindrical capacitor with radial leads.

The EEU-FR1E680B is constructed of aluminum foils separated by a non-conductive paper layer that is impregnated with liquid electrolyte. The aluminum encloses one of the current two conductors (the anode) to form a meshed shape. The other conductor is a thin aluminum oxide layer, which acts as an insulator between the anode and cathode. This capacitor is capable of great energy storage, high insulation resistance, and long service life.

The most important application field of the EEU-FR1E680B is as power output system and input filter capacitor. Its use as an input filter capacitor is usually found in the power circuits of electronic equipment, such as communication, switching, or computing equipment, which must be protected against electromagnetic interference. In a power output system, it is used as a storage device between the power supply and the load, to smoothen the ripple. It can also be used as a decoupling capacitor in electronic circuits, to reduce the noise in the input stage of an amplifier or to isolate two parts of a circuit from one another.

In terms of working principle, capacitance is a measure of the amount of electric charge stored by the capacitor. This is determined by the area of the capacitor plates, the distance between the plates, and the capacitance of the material used as the dielectric between the plates. The capacitance of the EEU-FR1E680B is 680 μF, with a tolerance of 20%. This means that the actual capacitance value may be anywhere from 544 μF to 816 μF. This capacitance value can be adjusted by increasing or decreasing the area of capacitor plates. The voltage rating of the capacitor determines the maximum working voltage, and it is important to select a capacitor whose voltage rating is well above the voltage that will be applied to it.

The EEU-FR1E680B aluminum electrolytic capacitor is a widely used component due to its low cost, small size, high capacitance, and long life. It is ideal for filtering, smoothing, decoupling, and voltage output applications.

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