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Product Detailed Parameters
- Description：FILTER LC 180MHZ SMD
- Series：EMIFIL®, NFA18
- Mfr：Murata Electronics
- Package：Tape & Reel (TR)
- Type：Low Pass
- Filter Order：2nd
- Technology：LC
- Number of Channels：4
- Center / Cutoff Frequency：180MHz (Cutoff)
- Attenuation Value：15dB @ 500MHz
- 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 NFA18SD187X1A45L is an LC EMI filter circuit manufactured by Murata Electronics. It features a second-order low-pass configuration with four channels and a cutoff frequency of 180 MHz. The component supports a maximum current of 25 mA and operates within a temperature range of -40°C to +85°C. It utilizes a surface-mount 0603 (1608 metric) package with a 10-pad array footprint.
Feature Summary
- Combines LC noise suppression filtering with common mode choke coil functionality
- Provides second-order low-pass attenuation characteristics for signal integrity
- Designed for high-density surface-mount assembly via compact 0603 array packaging
Applications
- General-purpose EMI suppression in electronic circuits
- Signal line noise filtering in portable devices
- Common mode noise reduction in data transmission interfaces
Procurement Notes
Verify the lifecycle status carefully, as this component is classified as End of Life or Not Recommended for New Designs. Confirm availability through authorized distributors for remaining stock. Ensure design changes are considered if long-term supply continuity is required for production planning.
Selection Notes
Select this part when a combined LC filter and common mode choke solution is needed in a minimal footprint. The 180 MHz cutoff frequency suits applications requiring suppression above this threshold. Verify that the 25 mA current rating meets the specific circuit requirements before integration.
Part Context
This component belongs to the Murata NFA18 series of EMIFIL filters. These parts are designed to suppress electromagnetic interference in compact electronic systems. The NFA18SD variant specifically integrates common mode choke capabilities alongside standard LC filtering functions.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Due to the End of Life status, alternative components should be evaluated based on matching electrical specifications and physical dimensions.
