EEU-ED2E820SB

Application Field of EEU-ED2E820SB

EEU-ED2E820SB is a snap-in aluminum electrolytic capacitor. It works at a rated voltage of 25V and has capacitance of 820uF. It is designed with snap-in fixing for easier securing in the PCB. This capacitor is suitable for a variety of applications, such as DC power supply filter capacitors in workstations and consumer electronics, back light inverter filter capacitor in LCD televisions, LCD monitor, electronic ballasts, as well as PFC capacitor in power supplies and green energy applications. It is also suitable for applications that requires high stability, ripple current capability, and reliability, such as solar inverter and UPS systems.

Working Principle of EEU-ED2E820SB

All capacitors basically shared the same working principle; they store and release energy quickly. However, each type of capacitors use different materials or technologies to perform their respective functions. For example, EEU-ED2E820SB uses aluminum electrolyte and organic solvent to create a system which can store and release energy. The working principle of this type of capacitor is that a layer of aluminum oxide is formed when the anode (positive electrode) of the capacitor is soaked in this electrolyte. This layer of oxide effectively prevents the leakage of charge carriers from the anode. The electrons generated in the reaction accumulate at the anode and are blocked from flowing out by the thin oxide layer.

The capacitor also uses two polarized plates, namely, the anode and the cathode (negative electrode). The electrolyte is sandwiched between the two plates to create two compartments. This creates a parallel-plate capacitor. When a voltage is applied across the plates, the positive charge of the anode and the negative charge of the cathode creates an electric field between them. This electric field can store and release energy form the capacitor and the capacitance is proportional to the area of the plates and inversely proportional to the distance between them.

Conclusion

As discussed, EEU-ED2E820SB is a special type of aluminum electrolytic capacitor with snap-in fixing method for easier securing in the PCB board. It is suitable for wide range of application and its working principle is based on the electric field between its two parallel plates. Its high capacity and reliability makes it an ideal choice for power supply filter, backlight inverter and other DC power supply applications.