30D477M040DH2A

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Aluminum electrolytic capacitors are one of the more widely used passive electronic components in virtually every market and application. From its simplest form in basic power supplies to complex high-end audio electronics, these aluminum electrolytic capacitors provide a number of essential functions that enable the system to work properly. In this article, we will discuss the purpose, application field, and working principle of an aluminum electrolatic capacitor – 30D477M040DH2A.

Purpose: Aluminum electrolytic capacitors are mainly used for energy storage and filtering applications. Generally, they are used for smoothing current fluctuations in power supplies, for filter circuits, snubber circuits, high-frequency bypassing, power factor correction, energy storage, etc. As an example, in various computer systems, such as motherboards, this type of capacitor is used to smooth the current fluctuations from the AC mains supply.

Application field: The 30D477M040DH2A aluminum electrolytic capacitor is a polarized, surface-mounted device ideal for DC filtering and smoothing applications. It has an operating temperature range of -30°C to +85°C with a capacitance of 470 µF and a rated voltage of 420 V. This type of capacitor is ideal for use in computer motherboards, communication systems, various industrial and consumer electronic products that require a relatively large energy storage capacity.

Working Principle: Aluminum electrolytic capacitors utilize an electrolytic solution made of an organic solvent and a corrosive material in order to store energy in the form of a static charge on two electrodes. The electrodes are then separated by a porous barrier, usually made of diaphragm material. When a potential difference is applied across the two electrodes, an electric field is created, which allows positive ions to travel towards the negative electrode and negative ions towards the positive electrode. This process results in a buildup of static charge on the two electrodes, which is stored in the form of an electric field within the internal dielectric material.When the same potential difference is no longer applied, the ions will eventually recombine into the electrolytic solution and the static charge dissipates. However, due to the large capacitance and high energy capacity of these capacitors, the stored energy can be released over a much longer period of time than other capacitor types, allowing for long-term energy storage and smoothing of current fluctuations in power supplies and other applications.

In conclusion, aluminum electrolytic capacitors are indispensable components in virtually every electronic system on the market. The 30D477M040DH2A aluminum electrolytic capacitor is a common component suitable for DC filtering and smoothing applications, with a capacitance of 470 µF and a rated voltage of 420 V. This capacitor is suitable for use in motherboards, consumer electronics, and other applications that require a relatively large energy storage capacity. Lastly, aluminum electrolytic capacitors work using an electrolytic solution made of an organic solvent and a corrosive material in order to store energy in the form of a static charge, which is then released when the applied voltage is no longer present.

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