SN4R7M035ST

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Aluminum electrolytic capacitors belong to a family of capacitors with a wide variety of applications across multiple industries and electronic devices. SN4R7M035ST is a type of aluminum electrolytic capacitor manufactured by TDK Corporation. This type of capacitor is a surface-mount aluminum electrolytic capacitor with case size code SN. It has a rated capacitance of 4.7uF and a rated voltage of 35V.

The purpose of an aluminum electrolytic capacitor is to store energy and is generally used as a filter in electronic circuits. It is an ideal component for applications such as power supplies, signal conditioning, filter networks, and automotive electronics. Aluminum electrolytic capacitors are able to provide higher capacitance and greater tolerance of temperature variations than their ceramic and polymer counterparts.

Aluminum electrolytic capacitors are constructed from two aluminum foils, a paper or polyester spacer, and an electrolyte. The two foils are rolled together in a cylindrical or rectangular body and sealed in a metal case. The inner foil contains a cathode oxide layer, which makes it conductive. The outer foil is an anode with a coating of negative polarity molecules, such as a calcium-covered aluminum layer.

The electrolyte inside the capacitor provides the ions necessary for charge to travel through the capacitor. The electrolyte contains water and a dissolved alkali metal or earth alkali salt, providing the necessary ions for conduction. As the device charges, current passes through the cathode oxide on the inner foil. This makes the inner foil more positive than the outer foil and stores energy. When the capacitor discharges current passes through the electrolyte in the opposite direction, releasing the energy stored in the capacitor.

The rated voltage of SN4R7M035ST is 35V, and it is able to tolerate higher inrush currents and higher ripple currents as compared to other aluminum electrolytic capacitors. It is also able to provide longer life expectancy and better surge durability due to the use of an enhanced electrolyte.

The rated capacitance of 4.7uF means that the device is able to store more power than lower rated capacitance devices. This makes it more suitable for applications where a high current capacity is required, such as input and output filtering in switch mode power supplies. The dielectric is also robust enough to withstand high humidity and temperature variations, making it a suitable choice for automotive and other industrial applications.

SN4R7M035ST is a type of aluminum electrolytic capacitor that is highly reliable and suitable for a wide range of applications. It is able to store higher amounts of power, tolerate higher inrush currents and ripple currents, and withstand higher temperatures and humidity compared to other types of capacitors. This makes it an ideal choice for use in power supplies, signal conditioning, filter networks, and automotive electronics.

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