EKMW401VSN471MQ45S

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Aluminum Electrolytic Capacitors

The EKMW401VSN471MQ45S capacitor is an aluminum electrolytic capacitor. It is mainly used in applications that require large capacitance values in a small package size. This type of capacitor works similarly to a typical electrolytic capacitor, but instead of using a paper and aluminum foil dielectric, it uses aluminum oxide to provide a much higher capacitance.

Application Field

The EKMW401VSN471MQ45S is primarily used in electronics circuits, such as switching power supplies, amplifier circuits, linear voltage regulators, and in signal processing and filtering applications. This type of capacitor is often used in applications where high ripple current capability and high capacitance is needed. It is also often used when space is a premium, such as in mobile devices and compact circuits.

Working Principle

The construction of an aluminum electrolytic capacitor is composed of an electrolyte (often a liquid) sandwiched between two aluminum electrodes. The aluminum oxide coating in between the two electrodes is the dielectric. When a voltage is applied across the capacitors, the electric field created in the oxide layer causes a redistribution of electrons from the negative to the positive electrode, creating an electrostatic field that fills up the empty space. The strength of this electrostatic field is proportional to the voltage applied to the capacitor, which determines the capacitance value.

When the voltage is removed from the capacitor, most of the accumulated charge remains and a small amount of leakage current is discharged. This amount of current is directly proportional to the capacitance of the capacitor and determines the amount of time it takes for the capacitor to discharge.

The EKMW401VSN471MQ45S capacitor is a non-polarized electrolytic capacitor meaning that it has no polarity and can be connected either way. It is important to note that most electrolytic capacitors, including this one, are polarized so it is important to check the polarity of the capacitor before connecting it into a circuit.

Conclusion

The EKMW401VSN471MQ45S is a very useful aluminum electrolytic capacitor that is suitable for a wide range of applications. It is suitable for use in switching power supplies, amplifier circuits, linear voltage regulators, and a variety of signal processing and filtering applications. It can also be used when space is a premium, such as in mobile devices and compact circuits. The important thing to note is that this type of capacitor is polarized and should be connected with the correct polarity.

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