B43770A5248M000

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Aluminum electrolytic capacitors (also known as Aluminum Electrolytic Capacitors) are widely used components in power electronic circuits. The B43770A5248M000 is an aluminum electrolytic capacitor specifically designed for this application field. It is a low ESR (equivalent series resistance) capacitor with excellent performance characteristics.

Physical characteristics

The B43770A5248M000 capacitor is a standard aluminum electroylitc capacitor with its size being 20mm×18mm×10mm. It has a rated capacitance of 4.7uF at a rated voltage of 25V and a maximum Ripple Current of 4.008A. The capacitor\'s temperature characteristics range from -40℃ to +85℃, with a maximum endurance of 32h at 120℃.

Internal Structure and Working Principle

The aluminum electrolytic capacitor is composed of an aluminum foil, a dielectric electrolyte and a solid electrolyte with a cathode connected to it. The aluminum foil operates as the "plate" of the capacitor while the dielectric electrolyte acts as the insulation layer. The presence of the hardened solid electrolyte provides a conductive connection between the anode and cathode of the capacitor thereby allowing the flow of electrons. The capacitor\'s electrical behaviour is determined by the capacitance value, which depends on the size of the foil, the dielectric material, and the thickness of the oxide film created by the electrolyte.

The working principle of an aluminum electrolytic capacitor is quite simple. When voltage is applied across the aluminum foil and the electrolytic dielectric, an electric field is produced between the two, attracting and mobilizing the electrons located in the metal oxide layer. This process creates a capacitive effect, allowing the capacitor to store electrical energy and release it when the voltage across its terminals drops below a certain value. The electrolyte then acts as an insulator, preventing the current from flowing until the voltage is increased again.

Applications

Aluminum electrolytic capacitors are commonly used in electronic circuits such as power supplies, DC-to-DC converters, UPS systems, and voltage regulators. They are particularly useful in higher frequency applications such as switching power supplies, DC-DC converters, and AC motor drives. Due to their low ESR, aluminum electrolytic capacitors are also used in electronic circuits for decoupling and filtering purposes as they provide excellent noise suppression and efficient energy storage and release.

The B43770A5248M000 is a specialized aluminum electrolytic capacitor with excellent performance characteristics. It is ideal for use in harsh environments with a temperature range of -40℃ to +85℃ and a maximum endurance of 32h at 120℃. This makes it suitable for use in high temperature and high vibration applications. With its exceptional performance characteristics, the B43770A5248M000 is an ideal choice for applications such as switch mode power supplies, DC-DC converters, and UPS systems.

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