Original Part
Alternative Part
1. FMAT7466-9 Substitution Conclusion
The FMAT7466-9 matches the original SA18H-09 in attenuation (9 dB), power rating (2 W), and impedance (50 Ω). However, its frequency range is limited to 0–12 GHz, compared to the original 0–18 GHz. Performance in the 12–18 GHz band may not be guaranteed, potentially leading to signal loss. Additionally, its connector orientation is labeled JACK-PLUG (versus the original PLUG-JACK), which may result in reversed mechanical mating. If the application is strictly below 12 GHz and the connector orientation can be accommodated, substitution is feasible. Otherwise, it is not recommended for high‑frequency requirements or where mechanical adaptation is not possible.
2. SA26B-09 Substitution Conclusion
The SA26B-09 is identical to the original SA18H-09 in attenuation, power rating, and impedance. Its frequency range extends to 0–26 GHz, fully covering the original 0–18 GHz. Electrically, it is not only compatible but also supports higher‑frequency applications. However, its outline is noted as SS 1.4 (compared to the original SS 1.35), which may introduce a slight dimensional difference. Mechanical fit should be verified to ensure no physical interference during installation. Overall, the SA26B-09 is a seamless technical substitute for the original part, provided the dimensional compatibility is confirmed prior to mounting.
Analysis ID: DCEC-26A4000
Based on part parameters and for reference only. Not to be used for procurement or production.
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