B43750A5248M000

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Introduction

Aluminum Electrolytic Capacitors are widely used in electronic industries due to their high capacitance, long lifespan and high reliability. B43750A5248M000 solid electrolytic capacitors, manufactured by EPCOS®, are an excellent choice when it comes to selecting aluminum electrolytic capacitors for various applications. This paper aims to discuss the application field of the B43750A5248M000 capacitor and its working principle.

Application Field

The B43750A5248M000 aluminum electrolytic capacitors are typically employed in DC-to-DC converters due to their small size, low ESR (equivalent series resistance) and long endurance in high temperatures. They are suitable for off-line switching power supplies as they have a long endurance in high temperatures as well as high ripple current ratings. In addition, they are also deployed to moderate high-voltage pulsing in switched-mode supplies.

The B43750A5248M000 capacitors are also used in several other applications such as AC/DC motor starters, power regulators, voltage regulators, and lighting circuits. The capacitors are excellent for high-temperature solid-state relays and current limiters as they have a long service life in high temperatures.

Working Principle

Aluminum electrolytic capacitors employ activated porous oxide coated aluminum foils as their electrodes. The dielectric material inside the capacitor utilizes a liquid electrolyte which is kept under pressure, along with a spiral wound electrode. A portion of the aluminum foil layer is etched away in order to form a variety of channels so as to develop a large surface area to increase capacitance.

When a voltage is applied to the capacitor, a large current is extracted from an anode, which is connected to the positive terminal of the capacitor and travels through the electrolyte, eventually reaching the level of cathode, which is connected to the negative terminal of the capacitor. This large current accumulates and stores energy.

Once the capacitor has been charged, it will keep the charge and will not allow any current to pass. This is why aluminum electrolytic capacitors are widely used in dc-to-dc converters, power supplies, and other electronic circuits as it delivers long-term energy storage, even in high temperature environments.

Conclusion

To summarize, the EPCOS B43750A5248M000 aluminum electrolytic capacitors are mainly used for DC-to-DC converters, power supplies, voltage regulators, AC/DC motor starters, current limiters, and lighting circuits. They have a long endurance in high temperatures and hence are widely used in several electronic applications requiring capacitors with high capacitance.

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