ESMR421VSN681MA40S

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Aluminum electrolytic capacitors are components that use electrochemical principles to store electrical energy. Generally, the aluminum foil of the anode is invested with a uniform layer of oxide film and then rolled into a cylindrical shape, which is rolled up with paper as an electrolyte. The surface of the aluminum foil is coated with graphite, and the cathode is connected to the metal electrode pins on both sides. Due to the existence of semiconductor oxide film, the electric double layer is formed in the capacitor, and the oxide film plays a role of insulation. At the same time, the electric double layer also has a certain electrostatic capacitance. Under the action of connected power supply voltage, an electric field is formed in the capacitor, that is, the oxide film The electric field intensity is greater than 10 MV / m, so that the positive carriers will penetrate the dielectric oxide film out of the surface of the anode, and the negative carriers are injected into the anode along the electric field. In the ESMR421VSN681MA40S aluminum electrolytic capacitor applications field and working principle, this phenomenon is called polarization charging, which is the working principle of aluminum electrolytic capacitor.The ESMR421VSN681MA40S aluminum electrolytic capacitor provides a specific type of commercial filter in certain high-frequency applications, and also provides frequency filters in inverter and power rectifier circuits. Specifically, the ESMR421VSN681MA40S is a capacitor with a capacitance value of 421 μF, a rated voltage of 350 V, and a size of 8mm x 15mm. This type of capacitor is now typically used in various inverter circuits and other DC-DC converter circuits.In addition to being used in general power supply circuits, this type of capacitor can also withstand ripple current from AC filters, which is also a role that ordinary aluminum electrolytic capacitors can’t do it. The ESMR421VSN681MA40S aluminum electrolytic capacitor also has a much higher rated voltage than ordinary capacitors and can provide adequate protection in high-voltage applications. Still, the electrolytic capacitor has a large size and a slow response time in signal circuits, making it the choice of the last resort.To summarize, the ESMR421VSN681MA40S aluminum electrolytic capacitor is mainly used in various inverter circuits and power rectifier circuits. It has a large capacity, a high rated voltage, and can withstand high ripple current, but its size is large and its response speed is slow. Although the ESMR421VSN681MA40S aluminum electrolytic capacitor has certain limitations, it is still a high-performance capacitor with great market potential and value.

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