Original Part
Alternative Part
1. FMAT7460-3 Substitution Conclusion
The FMAT7460-3 matches the original SA18S5W-03 in key specifications such as attenuation (3 dB), power rating (5 W), and impedance (50 Ω), and shares the same SMA In-Line Module package. This makes it a functionally suitable substitute in low- to mid-frequency applications. The primary difference lies in the frequency range: the FMAT7460-3 supports DC to 12.4 GHz, whereas the original part covers DC to 18 GHz. If the application involves high-frequency signals between 12.4 GHz and 18 GHz—such as in millimeter-wave communications or high-speed test systems—the FMAT7460-3 will not meet performance requirements, potentially leading to unstable attenuation or device failure. Substitutability is strictly dependent on the system operating frequency; direct replacement is only feasible if the maximum frequency does not exceed 12.4 GHz. Otherwise, it is not recommended.
2. FMAT7623-3 Substitution Conclusion
The FMAT7623-3 aligns perfectly with the original SA18S5W-03 in critical technical parameters including attenuation (3 dB), power handling (5 W), impedance (50 Ω), and frequency range (DC to 18 GHz). It also uses the same SMA In-Line Module package, indicating high consistency in both electrical and RF performance. Any differences are limited to descriptive details, such as SMA connector revisions or part numbering, with no deviation in actual technical specifications. The FMAT7623-3 can provide equivalent attenuation accuracy, power handling, and impedance matching across the full bandwidth, including high-frequency operation up to 18 GHz. Therefore, it serves as a direct and reliable drop-in replacement, requiring no additional circuit or system design modifications.
Analysis ID: 3CF6-10F7000
Based on part parameters and for reference only. Not to be used for procurement or production.
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