NAP-20-102-DXE

Power line filters are devices used to suppress common-mode/differential-mode and other EMI-related noise on printed circuit boards (PCBs). These filters are essential for preventing interference and crosstalk between subsystems, as well as protecting sensitive components from outside signals. The NAP-20-102-DXE belongs to the category of such power line filter modules and offers an efficient and cost-effective solution to these common noise problems. In this article, we will discuss the application field and working principle of the NAP-20-102-DXE.

The NAP-20-102-DXE is a compact, low-profile power line filter that is designed to provide improved differential-mode attenuation and common-mode rejection. It is made up of a pair of dual-wound toroidal coils and two monolithic ceramic capacitors, along with a common-mode ferrite bead, enclosed in a thermoplastic housing. It offers high-performance, cost-effective solutions to noise-related problems from both differential-mode and common-mode sources. It is suitable for application in many different fields, including industrial, audio, and automotive.

The application of the NAP-20-102-DXE can be seen across a wide range of industries. It is designed to filter and block out wide bandwidths of electromagnetic interference (EMI) or radio frequency interference (RFI) to ensure reliable signal delivery. In industrial applications, the filter is used to protect motors, controllers, and electronic equipment from high-frequency noise generated by other components of the same system. It is also used in audio applications to shield input and output signals from unwanted external noise. The NAP-20-102-DXE can also be used in automobiles to provide EMI/RFI immunization for sensitive vehicle control systems, such as engine, transmission, and brake systems.

The specific working principle of the NAP-20-102-DXE power line filter module is based on the fact that its magnetic components have an impedance which is a function of frequency. The toroidal coils form a high-impedance filter at the frequency of interest, while its monolithic ceramic capacitors, along with its common-mode ferrite bead, offer excellent noise attenuation performance. At high frequencies, the filter impedance increases to reject strong common-mode signals. At lower frequencies, its impedance falls to attenuate differential-mode signals. The effective bandwidth of the filter is from 1 MHz up to 100 MHz, ensuring excellent protection from high and low-frequency noise signals.

In summary, the NAP-20-102-DXE power line filter module is an effective and cost-effective solution to noise-related problems from both differential-mode and common-mode sources. It is suitable for application in many different industrial, audio, and automotive fields, thanks to its excellent differential-mode attenuation and common-mode rejection capabilities. Its magnetic components have an impedance which is a function of frequency and offer high-performance noise attenuation performance from 1 MHz up to 100 MHz.