B43866A2156M

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Aluminum electrolytic capacitors, also known as aluminum electrolytic variable capacitors, or electrolytic variable capacitors, are the most common type of capacitors used in electronic circuits. They use two aluminum foils, one of which is heavily oxidized and serves as the "anode" of the device, while the other is thinly coated, and serves as the "cathode". The two aluminum foils are separated from each other by a solid electrolyte made of an oxide of aluminum, commonly referred to as "polarizing medium". This dielectric layer creates a barrier between the two aluminum foils and prevents powering current from flowing through them. A voltage applied to the capacitor will cause a small amount of current to pass through the electrolytic medium, which will cause the cathode foil to become thicker and reduce the capacitance. The shrinking of the cathode foil reduces the capacitance and increases the resistance of the capacitance, allowing the use of a larger capacitance than would be possible with conventional capacitors, while still providing a high capacity.

The B43866A2156M is a type of aluminum electrolytic capacitor that employs a sinter-on-glass design, which means the electrolyte is dissolved in a molten glass, then fired, resulting in a very thin, homogeneous layer of glass-bonded aluminum electrodes. This design has several advantages over rigidly held electrolyte layers, such as improved heat dissipation, improved capacitance at high frequency, and increased breakdown voltage. It also allows for relatively low ESR and ESL values, which improve power supply efficiency.

The B43866A2156M is designed for use in high-frequency switching power supplies, providing decoupling and filtering applications in this area. Common uses include power converter input and output, capacitor coupling, and regulator sweeping systems. The B43866A2156M is also suitable for applications involving high ramp rates, high frequency ripple currents, high capacitance, and wide temperature range. Furthermore, its inherent low ESR and ESL values make it suitable for use in DC/DC converters, ensuring smoother throughput, less ringing, and reduced power loss.

In addition to its superior performance under dynamic conditions, the B43866A2156M is also well-suited for applications requiring high voltage rises and temperature stability. Its sinter-on-glass technology allows it to withstand voltage surges of up to 4000 V, with a maximum effective capacitance of 1.56 uF at frequencies of up to 500 kHz for a given voltage. With its large capacitance value and high surge voltage capability, the B43866A2156M is well-suited for applications where large amounts of energy need to be stored and discharged rapidly. It is also relatively inert to temperature variations, maintaining its capacitance even in wide temperature ranges.

Overall, the B43866A2156M is a highly reliable aluminum electrolytic capacitor, able to operate at high frequencies and handle large amounts of charge in a variety of conditions. Its sinter-on-glass technology provides it with superior heat dissipation and voltage surge performance, while its large capacitance value and wide temperature range make it suitable for a variety of applications. The B43866A2156M is an ideal choice for high-frequency switching power supplies where high voltage rises and large amounts of energy need to be handled.

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