NFA18SL207V1A45L

Introduction

EMI/RFI filters consist of two main components: LC and RC networks. Each component is designed to reduce or eliminate electromagnetic interference, or EMI. LC filters use inductors and capacitors to block EMI, while RC filters work by controlling harmonic currents in the system. Together, these components are used to reduce unwanted noise in electronic devices such as televisions, radio, and computers.

NFA18SL207V1A45L Application Field and Working Principle

The NFA18SL207V1A45L filter is an LC-type filter intended for use in switching power supplies and other applications with high common mode voltage requirements. It features two-stage capacitance and is designed to withstand high operating temperatures and voltages. The filter has a maximum operating voltage of 85V AC and a maximum ac ripple current of 315 mA. In addition to its high tolerance to voltage and temperature, the filter is designed to reduce EMI emissions that can occur in switching power supplies.

The NFA18SL207V1A45L’s working principle is as follows. The two-stage capacitance of the filter capitalizes on the effect of the inductors and capacitors to create a pass band. The capacitors are connected to the switching supply at one end, while the inductors are connected to the output at the other end. As the current passes through the pass band, energy is lost into the load as a result of the capacitors acting like short circuits. This, in turn, suppresses the high-frequency signals generated by the switching power supply, which reduces noise and EMI emission.

Conclusion

In summary, the NFA18SL207V1A45L is an LC-type EMI/RFI filter designed for use in switching power supplies and other applications with high common mode voltage requirements. It utilizes two-stage capacitance to reduce EMI emissions by creating a pass band which suppresses high-frequency signals induced by the switching supply. Through its robust design and reliable performance, the NFA18SL207V1A45L is an ideal solution for reducing unwanted noise in a variety of electronic devices.