W2F11A2218AT1F Filters

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Feed Through Capacitors

Feed Through Capacitors are a type of capacitor that provide high frequency filtering and coupling on two ports. As such, they can be used to block and/or pass specific frequencies or bands of frequencies of an electrical signal. They are typically used to improve signal integrity, reduce interference, or reduce AC ripple. The W2F11A2218AT1F is an example of a Feed Through Capacitor.

Application Field

The W2F11A2218AT1F Feed Through Capacitor is used in a variety of applications related to high frequency filtering and signal conditioning. It is commonly used in telecommunications, broadcast radio, and industrial electronics, and is suitable for applications such as EMI/RFI filtering, power line conditioning, low-pass and high-pass filtering, and DC blocking. The W2F11A2218AT1F can also be used for various non-standard applications, such as balancing DC or for EMC compliance.

Working Principle

The W2F11A2218AT1F Feed Through Capacitor is a two-port representation of a three-terminal capacitor. It consists of two plates, one connected to each port, separated by an electrical insulator material. Electrically, it behaves like two capacitors in series, with its capacitance determined by the plate area, the spacing between the plates, and the type of insulating material used.

As with all capacitors, when an AC signal passes through a feed through capacitor, the capacitor introduces a slight phase shift between the input and output signals. This is because the capacitor allows some of the frequency component to pass through, while reducing the amplitude of others. The amount of phase shift depends on the capacitor\'s capacitance and the frequency of the signal, and is determined using complex impedance calculations.

In addition, the W2F11A2218AT1F also has a very low DC resistance, so it can be used to block DC if desired. The DC resistance is approximately 0.02 ohms, and is a result of the high-value capacitance of the device.

Conclusion

In conclusion, the W2F11A2218AT1F is an example of a Feed Through Capacitor that is used for a variety of applications such as EMI/RFI filtering, power line conditioning, low-pass and high-pass filtering, and DC blocking. Its working principle is based on introducing a slight phase shift between input and output signals, as well as blocking DC if necessary, due to its low DC resistance.

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