What is a Feedthrough capacitor?

A feed-through capacitor is a type of capacitor used to filter high-frequency noise in electrical circuits. It is designed to pass electrical signals through a conductive pathway without directly connecting to the signal line. This type of capacitor is commonly used in shielded enclosures for electronic devices and communication equipment to mitigate electromagnetic interference (EMI). It helps reduce high-frequency noise by directing it to the ground, which enhances overall system performance. Feed-through capacitors are particularly effective in filtering high-frequency noise in power supply lines. The selection of capacitance and frequency characteristics depends on the specific application.

Application of Feedthrough capacitor

１．Electronic device shielding: Blocks high-frequency noise and improves device performance.
２．Communication equipment: Protects internal circuits from external noise.
３．Power supply lines: Filters out high-frequency noise for stable power delivery.

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