4600-067

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Feed Through Capacitors

A 4600-067 application field and working principle are explained. Feed Through Capacitors refers to the components that provide the facility to connect power lines with circuit boards. They are composed of two separate capacitors, and the two parts are connected to the board with two separate holes. The capacitance of each part is kept low, as two different voltage levels can be maintained between them. Capacitors have been around for many years, and their use in this configuration is relatively new. The advantage of using Feed Through Capacitors over other alternatives is the consistent high isolation level that is achieved between the power lines and the board. This is because each capacitor can be used to provide low level voltage separation between the high voltage line and the board. In terms of applications, Feed Through Capacitors are mostly used for high frequency circuit boards, which are usually found in industries such as telecommunications, automotive, and medical. They are also used to provide isolation between high-voltage lines and digital circuits that need a high voltage reference.The working principle behind Feed Through Capacitors is very simple. When current passes through the two electrodes, one of the capacitor plates is charged, while the other is discharged. This creates a voltage difference between the two plates, and this difference is carried forward to the board. If the two capacitors are of the same value, then their effect is negated. Another important application of Feed Through Capacitors is in audio systems. They are often used to maintain a constant impedance between the driver and the speaker, even at high frequencies. This helps to improve the overall sound quality of an audio system. In conclusion, Feed Through Capacitors are essential components for many industrial applications, as they are able to provide consistent high isolation between high voltage power lines and the board. Their working principle is relatively simple and their benefits far outweigh any potential risks.

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