B43509F2277M000

Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are electrochemical capacitors where the anode electrode is made of a metal that forms a very thin insulating layer of oxide. The oxide layer acts as a dielectric, which causes the effective capacitance to be proportional to the surface area of the anode. This non-polarized capacitor type is the most popular form of aluminum electrolytic capacitor available today, and can be found in circuits ranging from consumer devices to industrial electronics.

The B43509F2277M000 is a common model of aluminum electrolytic capacitor, and is typically found in consumer electronics such as electronic toys, portable media players, and computer peripherals. It is rated at 25μF, and is rated for 4.5volts at 85’C. Its dimensions are 7.3mm diameter by 4.7mm thickness. This model of aluminum electrolytic capacitor is most commonly seen in applications such as noise suppression and ripple elimination, as it offers a capacitance sufficiently large enough to handle these roles.

Application Field

The B43509F2277M000 is able to handle a range of applications. It is best suited as a noise suppression capacitor, as it can be used to reduce RF interference or as part of a snubber circuit. Additionally, its large capacitance rating makes it ideal for filtering high frequencies, and is also commonly used for ripple elimination and power conditioning. In these roles, it can be placed in series with a voltage source to reduce the peaks and troughs and, in turn, make the voltage more stable. As such, this model of aluminum electrolytic capacitor can often be found in power supplies and converters.

Working Principle

The B43509F2277M000 works on the principle of electrolytic capacitance, wherein an electrolyte and an anode, separated by a dielectric, form an electrochemical capacitor. By connecting the capacitor to a DC voltage source, thecathode will be negatively charged and the anode will become positively charged. The negative charges on the cathode repel the positive ions of the electroylte, thus creating a dielectric layer between the two electrodes. This dielectric permits electrical charge to be stored coherently at the interface between the two electrodes, allowing the capacitor to store energy.

Additionally, the peak capacitance of the B43509F2277M000 also depends on the surface area of the anode. This is due to the oxide layer created by the passivation of the anode, which acts as a dielectric and increases the effective capacitance. Thus, this model of aluminum electrolytic capacitor is able to store a greater amount of charge and energy compared to other capacitor types due to the increased surface area.

Conclusion

The B43509F2277M000 is a common model of aluminum electrolytic capacitor that is typically found in consumer electronics such as electronic toys, portable media players, and computer peripherals. It is rated at 25μF and performs best in applications such as noise suppression, ripple elimination, and power conditioning. Its working principle is based on electrolytic capacitance, where a dielectric layer is produced at the interface between the cathode and anode which allows for electrical charge to be stored. Its peak capacitance is also proportional to the surface area of the anode, as the oxide layer created by the passivation process acts as a dielectric. This model of aluminum electrolytic capacitor is thus one of the most popular capacitor types, as it is able to store a greater amount of charge and energy than other capacitor types.