Original Part
Alternative Part
1. SA6-09 Substitution Conclusion
The SA6-09 is identical to the SA18E-09 in attenuation value, power rating, impedance, and connector interface. However, its maximum operating frequency is only 6 GHz, significantly lower than the original part's 18 GHz. For applications below 6 GHz, the SA6-09 can serve as a direct substitute. If the system operates above 6 GHz, using the SA6-09 will introduce unpredictable additional insertion loss and performance degradation. Therefore, it is only suitable for low-frequency scenarios and is not a viable replacement for high-frequency applications.
2. FMAT1013 Substitution Conclusion
The FMAT1013 shares identical core electrical parameters with the SA6-09, also providing 9dB attenuation, 2W power handling, and an SMA interface. Its key limitation is the same as the SA6-09: a maximum operating frequency of only 6 GHz. The substitution conclusion is therefore identical: it is a feasible alternative for circuits operating below 6 GHz. For applications originally designed to cover up to 18 GHz, it is not a suitable replacement as it cannot guarantee performance at higher frequencies. The part number (FMAT1013) and the minor mechanical dimension differences noted in the description (1.22 vs. 1.3/1.35) do not affect this electrical performance conclusion.
Analysis ID: 1E8F-F010000
Based on part parameters and for reference only. Not to be used for procurement or production.
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