4420P-601-470/181

Introduction to EMI/RFI Filters

EMI/RFI filters are components used to suppress radio frequency interference, also known as RFI, as well as electromagnetic interference, or EMI. These filters are designed to block any unwanted emitted/received electromagnetic signals that come from electronic devices.

EMI/RFI filters are divided into two main categories: the line-to-line and the line-to-ground filters, otherwise referred to as LC and RC networks, respectively. Each type of filter is designed for different applications and achieve two different goals. Line-To-Line filters are designed to block any signals between two lines while line-to-ground filters are designed to block any signals coming from the ground.

4420P-601-470/181 Application Field and Working Principle

The 4420P-601-470/181 is a line-to-line EMI/RFI filter that is designed for use in serial systems. It is essentially a coaxial network with two parallel capacitors, each one having the ability to block any radio frequencies coming from and going to the serial system. This type of filter is ideal for suppressing RFI that can interfere with the accuracy and reliability of a system.

The working principle for this type of filter is fairly straightforward. When a signal passes through the network, it passes through the pass-block structure, which is composed of the two capacitors. The capacitors block any signal that is outside of the predetermined pass-band range, while allowing any signal within the pass-band range. This is very useful in preventing any interference from external signals.

In addition to this, the 4420P-601-470/181 also offers a high dielectric strength rating, ensuring that any EMI emitted/received within the system is effectively mitigated.

Conclusion

The 4420P-601-470/181 is a line-to-line EMI/RFI filter that is designed for use in serial systems. Its working principle is quite simple: it passes signals that are within the predetermined pass-band range, while blocking any signals that are outside of it. It also offers a high dielectric strength rating, ensuring that any EMI emitted/received within the system is effectively mitigated.