KMG200VB4R7M8X11LL

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Aluminum electrolytic capacitors are electrical devices found in numerous and diverse applications. An example is the KMG200VB4R7M8X11LL, which is designed as a polarized electrolytic capacitor with double-layer side-by-side lamination. This capacitor is used in applications where voltage double layer capacitance/speed switching is required – such as in TVs, computers and household appliances.

This electrolytic capacitor possesses improved characteristics for voltage retention, high ripple current capability, low ESR and long lifetime. Its construction consists of alternating layers of an electrolyte and two aluminum foil (plates) electrodes. The KMG200VB4R7M8X11LL is rated for maximum 400Vdc (at 85°C) and has a capacitance of 4.7 mF. Its dissipation factor (tan δ) is typically 0.21, indicating a relatively low level of dielectric loss.

The working principle of an electrolytic capacitor is based on Faraday’s Law. When a voltage is applied between the two electrodes, electrical current passes through the electrical layer between them, which is the electrolyte. The electrical current causes the positive ions from the electrolyte to leave the negative electrode and the negative ions from the electrolyte to leave the positive electrode. This creates a buildup of positive and negative charges on the opposing electrodes. These charges form a capacitor, which is used to store electrical energy.

When the voltage across the electrochemical capacitor is reversed, the current changes its polarity, and the electrical charge is redistributed opposite to the charge that was built-up in the previous step. This process discharges the capacitor, returning it to its original state. The rate of discharge, which is determined by the size of the capacitor, is referred to as the time constant. The KMG200VB4R7M8X11LL is capable of switching voltages in less than 10µs, making it perfect for devices requiring fast switching.

This type of electrolytic capacitor can be used in a variety of applications, such as switch mode power supplies, high voltage power supplies, electronic ballast, EL lighting, pulse circuits, and as a decoupling capacitor in circuits. It is also used in signal purification, high current rectifiers, and audio applications.

In conclusion, aluminum electrolytic capacitors are an important tool in circuit and power applications. The KMG200VB4R7M8X11LL is a specialized component designed for space- and energy-efficiency, and is capable of switching voltage double layers quickly and delivering reliable performance in even the harshest of environments. With its low dissipation factor, long lifetime, and high ripple current capability, this product is sure to meet its user\'s needs.

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