Original Part
Alternative Part
1. SA18N5WA-03 Substitution Conclusion
From a technical specification perspective, the SA18N5WA-03 is a direct and performance-upgraded substitute for the original FMAT7461-3 part. All key parameters—attenuation (3 dB), power rating (5 W), impedance (50 Ω), and connector type (N-type straight-through module)—are identical. The primary distinction is that the SA18N5WA-03 offers a significantly wider frequency range (0–18 GHz) compared to the original part's 0–12.4 GHz. The SA18N5WA-03 performs equivalently across the entire operating band of the original part and maintains good performance in the extended high-frequency range from 12.4 GHz to 18 GHz, providing greater frequency margin and broader application compatibility. Provided the physical mounting dimensions are compatible (both are N-type inline modules), a seamless replacement can be achieved.
2. SA3N5W-03 Substitution Conclusion
Substituting the SA3N5W-03 for the original FMAT7461-3 carries significant risk and is generally not feasible. While both parts share the same attenuation, power rating, impedance, and connector type, the core discrepancy lies in the frequency range: the SA3N5W-03 is limited to 0–3 GHz, far narrower than the original part's 0–12.4 GHz. Within the 3 GHz to 12.4 GHz range, key performance characteristics of the SA3N5W-03—including attenuation value, impedance matching, and power handling capability—will degrade severely or cannot be guaranteed. This may lead to system signal distortion, increased reflection, or even device failure. The SA3N5W-03 is only suitable for applications strictly confined to below 3 GHz and cannot meet the design frequency requirements of the original part.
Analysis ID: 4745-2E52000
Based on part parameters and for reference only. Not to be used for procurement or production.
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