NFW31SP157X1E4L Filters

Current:	200mA
Height:	0.079" (2.00mm)
Size / Dimension:	0.126" L x 0.063" W (3.20mm x 1.60mm)
Package / Case:	1206 (3216 Metric), 3 PC Pad
Mounting Type:	Surface Mount
Voltage - Rated:	25V
Applications:	General Purpose
Operating Temperature:	-40°C ~ 85°C
ESD Protection:	No
Values:	--
Series:	EMIFIL®, NFW31
Resistance - Channel (Ohms):	--
Attenuation Value:	30dB @ 500MHz ~ 1GHz
Center / Cutoff Frequency:	150MHz (Cutoff)
Number of Channels:	1
Technology:	LC (Pi)
Filter Order:	3rd
Type:	Low Pass
Part Status:	Active
Packaging:	Tape & Reel (TR)

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EMI/RFI Filters (LC, RC Networks)

Electromagnetic interference (EMI)and radio frequency interference (RFI)are growing issues in modern electronics and electrical design. Regulations and safety standards necessitate the development of reliable and uniform filtering solutions that will protect the equipment and personnel from electric shock and damage. EMI/RFI filters (LC, RC networks) are designed to protect against EMI, and are commonly used in industrial, consumer and medical applications.The NFW31SP157X1E4L filter is a type of EMI/RFI filter that has been developed for use in industrial applications and is certified to IEC 61000-4-2, IEC 61000-4-3, and IEC 61000-4-11. The NFW31SP157X1E4L utilizes an inductive-capacitive-resistive (LCR) architecture to provide reliable, repeatable protection against EMI/RFI interference.The NFW31SP157X1E4L filter consists of an inductor, a capacitor, and a resistor connected in series. The inductor and the capacitor are connected in parallel, forming an LC filter, while the resistor is connected across the two components to provide additional damping and suppression of EMI/RFI signals. The inductor, capacitor, and resistor constitute what is known as a notch filter, which is designed to reject a specific range of frequencies and allow the rest to pass. This allows the filter to provide wide and uniform coverage against EMI/RFI interference, while also allowing for superior transient protection against electrical surges.The inductor and capacitor are designed to reject noises from 10 kHz to 250 MHz, making the filter especially effective against EMI/RFI. In addition, the resistor helps to dissipate any excess energy from the input signal, further attenuating any EMI/RFI. The NFW31SP157X1E4L filter also offers superior protection against power surges and other electrical anomalies. Its design allows it to absorb any electrical spikes, preventing them from propagating down the line and damaging attached equipment. The NFW31SP157X1E4L is especially suited to industrial applications, as it provides repeatable and reliable EMI/RFI protection, while also offering superior protection against power surges. Its high-quality inductors, capacitors, and resistors ensure a consistently high level of performance, making it a reliable and dependable choice for industrial applications.

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