MEM2012W211R

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EMI/RFI filters are indispensable components in modern electronic systems. This becomes more relevant with the increase of electromagnetic compatibility (EMC) requirements among electronic products. Thus when selecting components for any electronic device, it is worth considering EMI/RFI filters (including LC, RC networks) to protect its functionality. One such example is the MEM2012W211R.

The MEM2012W211R, part of the family of miniature high performance filters from SCHURTER, has a broad application field and a variety of uses. It is primarily used in communications and industrial control systems for high-frequency line filtering to attenuate conducted electromagnetic interference (EMI) and radio frequency interference (RFI) of up to 4GHz. This allows devices to comply with EMI/RFI emission standards in industrial, residential and medical environments.

The working principle of the MEM2012W211R follows the same structure as other filters in its category. It consists of an inductor and capacitors in parallel as LC circuits that form a low pass filter. This filter has a characteristic impedance, which depends on the size and values of the components used. This impedance is low enough to deep any out-of-band signal, while still allowing the desired in-band signal to pass without significant attenuation. In addition, the MEM2012W211R features an integrated ferrite bead, which helps in damping out-of-band noise.

To ensure proper transmission-line functionality, the MEM2012W211R is constructed with precision passive components. It has a highly stable frequency response over a temperature range of -40°C to +85°C and a high-quality PCB design to reduce the impact of microphonics. This helps maintain a consistent impedance irrespective of mechanical vibration or shock.

In addition, the MEM2012W211R is also available in two versions: single line and dual line filters. This allows for adjustment of the impedance of the filter based on the application, thus ensuring optimum performance. It is also well suited to high speed signals up to 4GHz, so it can withstand high voltage peaks and fast rise times. This makes it the ideal solution in short-range wireless applications.

The benefits of using the MEM2012W211R are clear. It is an effective, low cost solution that can handle high-frequency noise up to 4GHz. Furthermore, its low profile design allows for easy mounting in compact spaces. This coupled with its high-performance specifications make it the ideal choice for a range of EMI/RFI-filtering applications.

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