EEV477M6R3S9MAA

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are capacitors that use an electrolyte consisting of an ionic conductive liquid saturated with aluminium oxide to achieve high capacitance. The pin terminals of the capacitor are polarised, and there is a positive voltage on one pin and a negative voltage on the other. The most common type of aluminum electrolytic capacitor is the EEV477M6R3S9MAA, which is a radial leaded aluminum electrolytic capacitor.

Application field

EEV477M6R3S9MAA capacitors are typically used for power supply filtering, smoothening, and decoupling. They are mainly used in circuits to increase the volumetric efficiency of the power supply, filter out high frequency noise, and allow for low frequency ripple in the power supply. In addition, the EEV477M6R3S9MAA has an excellent frequency characteristic, high withstanding voltage, and low ESR (equivalent series resistance).

Working Principle

The working principle of the EEV477M6R3S9MAA is based on electrochemical double-layer capacitance. This type of capacitor has a porous anode (positive electrode) made of aluminum and a porous cathode (negative electrode) which is formed on an aluminum base plate. An electrolytic gel is filled between the two electrodes. When a voltage is applied across the two electrodes, a positive charge is stored on the anode, and a negative charge is stored on the cathode, which creates an electric field between the two electrodes and stores charge. The capacitance of the capacitor is proportional to the area of the two electrodes and the distance between them, and can be adjusted by changing either the area or the distance.

The capacitance of the EEV477M6R3S9MAA is also affected by the dielectric constant of the electrolyte and the composition of the electrolyte, which can alter the capacitance of the capacitor significantly. In addition, EEV477M6R3S9MAA capacitors have a high frequency characteristic, with a low ESR and low ESL. This makes them ideal for applications requiring high frequencies or low power consumption.

The EEV477M6R3S9MAA capacitor has a low self-inductance, so it is highly suitable for high-speed switching applications. In addition, the EEV477M6R3S9MAA has a high temperature coefficient and can be used in applications that require temperature compensation. Finally, the EEV477M6R3S9MAA is relatively stable and can handle large surges in voltage.

Conclusion

The EEV477M6R3S9MAA is an ideal capacitor for a variety of applications, especially those requiring high frequencies and low power consumption. The capacitor is highly reliable, with a low ESR and low ESL, and is highly suitable for high-speed switching applications. In addition, the EEV477M6R3S9MAA has a high temperature coefficient and is relatively stable, making it a great choice for applications that require temperature compensation.