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Product Detailed Parameters
- Description：FILTER LC(PI) 20MHZ SMD
- Series：EMIFIL®, NFW31
- Mfr：Murata Electronics
- Package：Bulk
- Type：Low Pass
- Filter Order：3rd
- Technology：LC (Pi)
- Number of Channels：1
- Center / Cutoff Frequency：20MHz (Cutoff)
- Attenuation Value：25dB @ 100MHz ~ 200MHz
- 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 Murata NFW31SP206X1E4K is a chip EMI filter belonging to the EMIFIL NFW31 series. It functions as a third-order low-pass LC Pi-type filter designed for one channel. The component supports a maximum current of 200 mA and operates within a frequency range up to 1 GHz. It utilizes a 1206 (3216 Metric) surface mount package with dimensions of 3.2 mm in length, 1.6 mm in width, and 1.8 mm in height.
Feature Summary
- Third-order low-pass filtering architecture utilizing an LC Pi-network configuration
- Designed for signal integrity and low-current supply line protection
- Compact surface-mount construction suitable for space-constrained layouts
Applications
- Signal line noise suppression
- Low-current power supply filtering
- High-frequency interference mitigation in compact electronic devices
Procurement Notes
Verify the complete part number including the suffix to ensure correct packaging and tolerance specifications. Confirm that the 200 mA current rating aligns with the target circuit requirements. Check for RoHS compliance status and moisture sensitivity levels prior to procurement to ensure compatibility with assembly processes.
Selection Notes
Select this component when a third-order attenuation profile is required for single-channel applications. Ensure the operating voltage and current do not exceed the specified limits. Consider the 1206 footprint constraints and verify that the physical dimensions fit within the designated PCB area without interfering with adjacent components.
Part Context
This component is part of Murata's EMIFIL NFW31 series, which specializes in combined type chip filters. The series offers various configurations for different order filtering needs. The NFW31SP206X1E4K specifically addresses scenarios requiring robust high-frequency noise reduction in a small form factor.
Replacement Considerations
Consult official Murata documentation for direct substitutes within the NFW31 series. Verify electrical parameters such as cutoff frequency and current handling before substituting with other manufacturers' products.
