4201-003

Electromagnetic interference (EMI) and radio frequency interference (RFI) filters are widely used in both consumer and industrial products as a means of reducing artifacts generated by and detected on their products and platforms. The 4201-003 is an example of a type of EMI/RFI filter which is used to reduce interference from electronic equipment and radio frequency emitters. In this article we will look at the application field and working principle of the 4201-003.

Application Field

The 4201-003 EMI/RFI filter is designed to reduce electromagnetic and radio frequency interference in unpowered/unfused, grounded eight to sixteen circuits. It can be used on input/output or supply lines and is ideal for applications in industrial, consumer, automotive and aerospace systems. The 4201-003 is ideal for applications that require small signal filtering where it is not practical or cost effective to use standard filter designs such as LC and RC networks. The 4201-003 is a compact EMI/RFI filter which is designed for space saving and cost effectiveness in mind.

Working Principle

The 4201-003 operates by employing a combination of Faraday shielding, inductive isolation, and out-of-band filtering to reduce EMI and RFI interference. The inductive elements of the filter shield sensitive components inside the system from potentially damaging interference signals. The Faraday shielding works by providing a continuous shield that wraps perpendicular to the vulnerable area, thereby reducing the amplitude of high-frequency noise present in the system. Finally, the out-of-band filtering is used to further reduce interference by passing only the frequencies necessary for the system and blocking any undesirable frequencies.

The filter is designed to operate at frequencies up to 1,000 MHz. The 4201-003 can be configured to pass only specific frequencies by using different capacitor values. Filter capacitors are typically used for this purpose, but other types of components, such as inductors, can also be used. The 4201-003 also utilizes gold plated terminals and has temperature rating of -40°C to +125°C. This allows the filter to be used in a variety of applications.

Conclusion

The 4201-003 EMI/RFI filter is a compact, cost effective, and space saving filter designed to reduce interference from electronic equipment and radio frequency emitters. Its Faraday shielding, inductive isolation, and out-of-band filtering make it an ideal filter for a variety of industrial, consumer, automotive, and aerospace applications. The 4201-003 has an operating range of up to 1,000 MHz and can be configured to pass specific frequencies with the use of filter capacitors or other components. The temperature rating of -40°C to +125°C allows for use in a wide range of environments.