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Product Detailed Parameters
- Description：FILTER LC 220MHZ SMD
- Series：EMIFIL®, NFA18
- Mfr：Murata Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Low Pass
- Filter Order：2nd
- Technology：LC
- Number of Channels：4
- Center / Cutoff Frequency：220MHz (Cutoff)
- Attenuation Value：30dB @ 900MHz
- Resistance - Channel (Ohms)：-
- Values：-
- ESD Protection：No
- Operating Temperature：-40°C ~ 85°C
- Applications：General Purpose
- Voltage - Rated：10V
- Mounting Type：Surface Mount
- Package / Case：0603 (1608 Metric), Array, 10 PC Pad
- Size / Dimension：0.063" L x 0.032" W (1.60mm x 0.80mm)
- Height：0.026" (0.65mm)
- Current：25 mA
- Grade：-
- Qualification：-
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Overview
The NFA18SL227V1A45L is a surface-mount LC EMI filter manufactured by Murata Electronics. It features a second-order low-pass configuration with four independent channels housed in a compact 0603 (1608 metric) array package measuring 1.60mm x 0.80mm x 0.65mm. The component has a rated voltage of 10V and supports a maximum current of 25mA. Its cutoff frequency is specified at 220MHz, providing an attenuation of 30dB at 900MHz. Designed for operation between -40°C and +85°C, it complies with RoHS3 standards.
Feature Summary
- Compact 0603 footprint enabling high-density circuit board layouts
- Steep insertion loss curve characteristic of LC combined technology
- Four-channel array architecture for multi-line signal filtering
- Low profile construction suitable for space-constrained applications
Applications
- General purpose EMI suppression in electronic circuits
- Signal line protection in portable devices
- Noise reduction in data transmission interfaces
Procurement Notes
Verify the specific suffix codes against official Murata documentation to ensure correct electrical characteristics. Confirm that the procurement channel provides genuine components with traceable manufacturing dates. Check for obsolescence notices as distributors may list end-of-life status. Ensure storage conditions comply with moisture sensitivity level requirements before reflow soldering.
Selection Notes
Select this component when a small form factor is required for multi-channel noise suppression. The 220MHz cutoff frequency suits applications needing attenuation above this threshold. Verify that the 25mA current rating meets the operational requirements of the protected lines. Consider the 10V rating relative to the system voltage to prevent dielectric breakdown during normal operation.
Part Context
This part belongs to the EMIFIL NFA18SL series, which utilizes LC combined technology to achieve deep insertion loss within a minimal footprint. The series is designed to replace discrete inductor-capacitor networks, simplifying assembly while maintaining effective electromagnetic interference performance in modern compact electronics.
Replacement Considerations
Consult official Murata substitution guides for verified equivalents. Generic LC filters may not match the steep attenuation curve or precise cutoff frequency. Ensure any substitute maintains the 0603 array package dimensions and thermal compatibility for existing footprints.
