450USC390MEFC35X40

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are widely used due to their high level of performance and cost-effectiveness. Their ability to provide very high capacitance per unit volume is the main attraction, making them popular in many different applications. The 450USC390MEFC35X40 capacitor is one such device that is not only widely used but contains features that make it even more useful.

What is a 450USC390MEFC35X40 Capacitor?

A 450USC390MEFC35X40 capacitor is a type of electrolytic capacitor that comes in a hermetically sealed aluminum case with either radial or axial leads. It has a wide operating temperature range and a frequency rating up to 105 kHz, making it suitable for numerous applications. It is constructed with a low-impedance aluminum foil, an electrolyte and a metal oxide layer. This unique construction gives the capacitor unique properties such as a larger capacitance per unit volume, immunity to vibration and a relatively low ESR compared to other types of capacitors.

Application Field of a 450USC390MEFC35X40 Capacitor

These capacitors can be used in various applications, such as signal coupling, bypassing, filtering, dc-transients, and for application in switching power supplies. Their high capacitance-to-volume ratio makes them particularly well suited for use in switching power supplies since they are able to store more capacitance than other types of capacitors. They are also used in audio circuits, especially in preamps and mixing boards where their high frequency capabilities are beneficial.

In DC-DC applications, they can be used for bulk capacitance in order to reduce the ripple current. This is beneficial for applications where the output voltage needs to remain stable since the capacitors are able to discharge quickly when the output voltage drops and recharge when it rises. In DC-AC applications, the capacitors can be used for filtering, storage, and transient response.

Working Principle of a 450USC390MEFC35X40 Capacitor

The capacitor works by storing charge on the two electrodes: a positive one on the aluminum foil and a negative one on the oxide layer. This creates an electric field between the two, which in turn generates an opposing electric potential. When voltage is applied to the capacitor, the current is allowed to flow through it and is then stored in the form of charge. When the voltage across the capacitor changes, the electric field between the two electrodes begins to collapse, allowing the stored charge to be discharged and thus providing the desired effect.

The 450USC390MEFC35X40 capacitor is able to effectively regulate current and voltage in numerous applications due to its unique properties. It provides a low ESR, a wide operating temperature range, and high level of capacitance per unit volume, which makes it extremely useful for many applications.

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