PSM4-402Z-02T0

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Feed Through Capacitors are typically used for the purpose of filtering. They are found in a wide range of applications and are particularly useful for applications requiring control of high frequency noise or for high power supply ripple reduction. The PSM4-402Z-02T0 capacitor is a specific series designed to provide improved EMI shielding, while maintaining low resistance to signal passage. This article will outline the application fields and working principles of PSM4-402Z-02T0.

The PSM4-402Z-02T0 is a widely used feed-through filter capacitor with excellent EMI shielding. This capacitor is particularly suited for use as differential and common mode noise suppression in power supplies. It can effectively reduce high frequency EMI radiated from power supply cables by up to 18 dB. In addition, the low impedance of the PSM4-402Z-02T0 allows for a lower power supply ripple and improved noise reduction.

The PSM4-402Z-02T0 is essentially a combination of two capacitors with different characteristics. The first is a ceramic capacitor which is designed to act as a filter for high frequency noise. This ceramic capacitor is connected between two pins on the capacitor body and provides a low impedance path for high frequency noise. The other is an RF feed-through capacitor. This is an inductor-free capacitor which allows for the signal to pass through with minimal impedance. The combination of these two components reduces the total impedance of the signal path and helps reduce electromagnetic interference.

The PSM4-402Z-02T0 capacitor is ideally suited for applications requiring a low insertion loss and high EMI shielding. Its low resistance to pass throgh signal allows for lower power supply ripple and improved system noise reduction. This capacitor is particularly useful for applications such as power line filters, audio filters, radio frequency filters, and power supply isolation.

The working principle of the PSM4-402Z-02T0 is fairly straightforward. The two components of the capacitor – the ceramic capacitor and the RF feed-through capacitor – work together to reduce the overall impedance of the signal path. The ceramic capacitor reduces high frequency noise from the power line, while the RF feed-through capacitor allows for uninterrupted signal passage. This combination provides a low impedance path for signals while also reducing the EMI radiation from these signals.

Feed-through capacitors such as the PSM4-402Z-02T0 provide improved signal fidelity while providing improved EMI shielding. They are widely used for applications such as power line filters, audio filters, radio frequency filters, and power supply isolation. The combination of ceramic and RF feed-through capacitors allows for the reduction of high frequency noise while simultaneously allowing for a lower power supply ripple and improved noise reduction.

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