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Product Detailed Parameters
- Description：FILTER LC(PI) 150MHZ SMD
- Series：EMIFIL®, NFW31
- Mfr：Murata Electronics
- Package：Tape & Reel (TR)
- Type：Low Pass
- Filter Order：3rd
- Technology：LC (Pi)
- Number of Channels：1
- Center / Cutoff Frequency：150MHz (Cutoff)
- Attenuation Value：30dB @ 500MHz ~ 1GHz
- Resistance - Channel (Ohms)：-
- Values：-
- ESD Protection：No
- Operating Temperature：-40°C ~ 85°C
- Applications：General Purpose
- Voltage - Rated：25V
- Mounting Type：Surface Mount
- Package / Case：1206 (3216 Metric), 3 PC Pad
- Size / Dimension：0.126" L x 0.063" W (3.20mm x 1.60mm)
- Height：0.079" (2.00mm)
- Current：200 mA
- Grade：-
- Qualification：-
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Overview
The NFW31SP157X1E4L is an EMI network filter from the Murata EMIFIL NFW31 series. It features a Pi filter circuit topology and is housed in a 1206 (3216 Metric) surface-mount package with three PC pads. The component has a rated voltage of 25V DC and operates within a temperature range defined by its series specifications. It provides attenuation of 30 dB at a frequency of 1 GHz, with a cutoff frequency of 150 MHz.
Feature Summary
- Utilizes a Pi filter circuit configuration for effective noise suppression
- Designed for surface-mount installation using solder pad termination
- Compliant with RoHS standards for restricted hazardous substances
Applications
- General electronic equipment requiring EMI/RFI filtering
- Signal lines in consumer electronics
- Power supply input stages in low-voltage applications
Procurement Notes
Verify the specific datasheet version for the NFW31SP157X1E4L to confirm detailed electrical characteristics and mechanical dimensions. Ensure compatibility with the target PCB footprint and thermal requirements. Check for any recent lifecycle status updates or alternative recommendations from Murata Electronics before finalizing procurement plans.
Selection Notes
Select this component when a compact 1206 footprint is required for EMI suppression in circuits operating up to 25V DC. The 150 MHz cutoff frequency makes it suitable for filtering higher-frequency noise. Consider the 30 dB attenuation performance at 1 GHz for applications demanding significant high-frequency interference reduction.
Part Context
This part belongs to the Murata EMIFIL NFW31 series, which focuses on small-footprint EMI filters. The series is designed for use in portable devices and compact electronics where space is limited. The NFW31SP157X1E4L specifically addresses the need for reliable noise filtering in modern surface-mount assembly processes.
Replacement Considerations
The NFW31SP206X1E4L is a related part within the same NFW31 series. Verify if the different cutoff frequency or attenuation characteristics of the SP206 variant meet the specific design requirements as a potential substitute.
