NFL18ST107H1A3D Filters

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Electromagnetic compatibility (EMC) and radio-frequency interference (RFI) filters are indispensable in any modern electronic system, and NFL18ST107H1A3D type EMI/RFI filter is one of the most popular and widely used type. This paper will mainly introduce its application field and working principle.

Application of NFL18ST107H1A3D

NFL18ST107H1A3D-type EMI/RFI filters are specially used in AC power line, and they can also be used in DC power line. It\'s suitable for home appliances, such as refrigerator, air conditioner, washing machine, television, microwave oven and so on; for medical equipment, such as infusion pumps, X-ray machines ,electrical beds and so on; for industrial equipment, such as frequency converter ,servo driver ,rectifier, UPS and so on; for automotive and telecom equipment. It can meet the EMI requirements of the above equipment efficiently for its excellent filtering performance.

Working Principle of NFL18ST107H1A3D

NFL18ST107H1A3D type EMI/RFI filter mainly contains inductors, capacitors and varistors. The inductors and varistors reduce the differential-mode disturbances; the capacitors reduce the common-mode disturbances. Moreover, the capacitors are used to couple the noise signals and prevent them from passing through the AC powerline. According to the circuit, the NFL18ST107H1A3D type EMI/RFI filters form an LCRC network.

As mentioned earlier, the noise signals will be mainly decoupled by the capacitors of the filter. Then, the differential-mode disturbances will be reduced by the inductors and varistors of the filter, so as to achieve the purpose of EMI suppression. The inductor also plays a role of power line decoupling, and its performance and attenuation will be affected by the current and frequency. The inductor and the capacitor can also produce a resonant peak, and it can suppress the higher frequency at the peak frequency as well.

Conclusion

To sum up, NFL18ST107H1A3D type EMI/RFI filter is widely used in AC power line, and it is suitable for home appliances, medical equipment, industrial equipment, automotive and telecom equipment. In terms of working principle, the filter forms an LCRC network which can decouple and reduce the noise of the power line efficiently. In a word, the NFL18ST107H1A3D type EMI/RFI filter is an important component for EMC and RFI shielding purposes.

The specific data is subject to PDF, and the above content is for reference