EEU-FS1J121L

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a commonly used type of capacitor in electronics. They are made up of two aluminum foils, one of which is covered with an oxide layer that acts as the dielectric. The aluminum oxide creates a strong electric field which allows the capacitor to store electrical energy. These capacitors are available in a wide range of values and voltage ratings.

EEU-FS1J121L Application Field and Working Principle

The EEU-FS1J121L is a surface mount aluminum electrolytic capacitor suitable for a variety of applications in the digital circuit, audio-visual circuit, and communication circuit. This capacitor offers excellent features in high temperature and high voltage applications, and it is suitable for high-energy pulse applications. The low ESR and ESL characteristics and excellent stability make it suitable for use in high efficiency switching power supply circuits. This capacitor has a wide capacitance range from 0.47 µF to 3300 µF, and the rated voltage is up to 200V.

The EEU-FS1J121L has polarized terminals, with positive to be marked with plus sign (+) and negative to be marked with a minus sign (-). The capacitor has a cylindrical shape with leads protruding from the base of the cylinder. To limit the amount of current drawn through the capacitor, the capacitor must be placed in the circuit with the proper polarity. Reversing the polarity of the capacitor will result in a loss of the capacitance value. Care must also be taken not to exceed the rated voltage of the capacitor.

The working principle of the aluminum electrolytic capacitor is based on the electric field generated between two separate surfaces. When voltage is applied to the electrodes, the oxide layer on the cathode side of the capacitor acts as an insulator. This prevents electric current from flowing back and forth through the capacitor. As a result, electric charge accumulates on the electrodes, and the capacitor stores this charge as electrical energy. The dielectric properties of the oxide layer determine how much charge the capacitor can hold.

The EEU-FS1J121L has a ripple current rating up to 2.7 A, which is important for smoothing out voltage variations in power supplies. These capacitors withstand high temperature and vibration, so they can be used in applications such as air conditioners, power windows, and engine control systems. Their low leakage current and long life provide reliability in these tough applications. The EEU-FS1J121L is RoHS compliant, and it is manufactured under ISO 9001 control, ensuring consistent quality.

In conclusion, the EEU-FS1J121L is an efficient, high-temperature, and high-voltage aluminum electrolytic capacitor. Its low-ESR and ESL characteristics make it suitable for use in high-efficiency switching power supply circuits. It offers high reliability and long life in demanding applications. This capacitor is RoHS compliant and manufactured under ISO 9001 control for unbeatable reliability and quality control.

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