Original Part
Alternative Part
1. SA18S5W-06 Substitution Conclusion
The SA18S5W-06 can serve as a direct replacement for the original SA3S5W-06, as both parts share identical key specifications: attenuation (6 dB), power rating (5 W), impedance (50 Ω), and package style (SMA In-Line Module). Notably, the SA18S5W-06 offers an extended frequency range of DC to 18 GHz, significantly surpassing the original part’s 3 GHz upper limit. This provides superior broadband performance and adaptability in high‑frequency applications, while fully covering the low‑frequency operating conditions of the original part. It is therefore considered a performance‑upward compatible substitute.
2. FMAT7623-6 Substitution Conclusion
The FMAT7623-6 matches the original SA3S5W-06 in all critical electrical parameters: 6 dB attenuation, 5 W power handling, 50 Ω impedance, and a frequency range of DC to 18 GHz (again wider than the original). However, its interface is specified as “SMA MALE,” whereas the original part is described as “PLUG‑JACK” (i.e., one plug, one jack). This indicates a potential mechanical gender mismatch: if the original device uses a plug‑jack configuration, the “all‑male” design of the FMAT7623‑6 would prevent direct mating. In such cases, an adapter would be required for interconnection. Therefore, prior to substitution, the actual interface configuration must be verified to ensure physical compatibility.
Analysis ID: F063-ADB0000
Based on part parameters and for reference only. Not to be used for procurement or production.
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