B43888A4686M000

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Aluminum electrolytic capacitors are components in an electrical system that can provide both filtering and decoupling. Although they are relatively inexpensive, they can help increase the efficiency of the electrical system by providing a steady current or voltage. The B43888A4686M000 are Aluminum Electrolytic Capacitors, and this article will discuss their application field and working principle.

Aluminum electrolytic capacitors are primarily used in applications such as power supplies, high-frequency amplifiers, pulse circuits, signal filters, measurement and process control circuits, and switching applications. In particular, they are well-suited for high-frequency applications because they have a wide range of capacitance, low ESL and low ESR. The low ESL and ESR make them ideal for filtering and decoupling signals.

The B43888A4686M000 are Aluminum Electrolytic Capacitors and feature a total capacitance of 100 µF, with a rated voltage of 350 volts. The tolerance of the capacitance is ±20%, and the rated temperature of the capacitors is at 85°C. The capacitors also feature a temperature coefficient of -25 / +85 ppm/°C, which means that the capacitance changes by 25 parts per million per degree Celsius over the rated temperature range.

The working principle of aluminum electrolytic capacitors is based on the principle of electrolytic erosion and deposition. In an electrolytic capacitor, aluminum is used as the conductor material, and an electrolyte, normally an aqueous electrolyte, is present between the plates. When a voltage is applied, a current flows between the two electrodes, causing the electrolyte to be electrolyzed at the anode. This leads to the erosion of some of the aluminum from the anode and its deposition on the cathode.

The current between the two plates creates an electrolytic double layer (EDL), consisting of an anode layer of positively charged aluminum ions and a cathode layer of negative ions. The EDL layer is extremely thin, but it has a very large voltage potential across it. This EDL layer provides the capacitance in the aluminum electrolytic capacitors. When a voltage is applied across the EDL, it causes electrons to be attracted to the anode side and away from the cathode side, resulting in an electric field that opposes the applied voltage.

The B43888A4686M000 capacitors are generally used in high-frequency applications because of their low ESL and ESR, as well as their wide capacitance range. The combination of these characteristics makes them ideal for filtering and decoupling signals. Additionally, because of their rated voltage, they can be used in circuits requiring high voltages. Their temperature coefficient of -25 / +85 ppm/°C ensures that capacitance values remain stable over a wide temperature range.

To conclude, the B43888A4686M000 are Aluminum Electrolytic Capacitors, which are ideal for high-frequency applications, such as power supplies and amplifiers, due to their low ESL and ESR, wide capacitance range, and rated voltage. They are capable of providing both filtering and decoupling, and their temperature coefficient ensures that capacitance values remain stable over a wide temperature range.

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