Original Part
Alternative Part
1. SA18H-09 Substitution Conclusion
The SA18H-09 can directly replace the original part LCAT1006-09, as both share identical key electrical parameters: attenuation value (9 dB), frequency range (DC–18 GHz), power rating (2 W), impedance (50 Ω), and interface type (SMA inline module). Across the full DC‑to‑18 GHz spectrum, the SA18H‑09 delivers equivalent signal attenuation performance, power‑handling capability, and impedance matching characteristics as the original part. Substitution will not degrade system performance. The primary difference lies in the manufacturer brand, which changes from L‑com to Fairview Microwave, making this a direct drop‑in replacement within the same specification.
2. FMAT1013 Substitution Conclusion
The FMAT1013 is not a fully compatible substitute for the original part LCAT1006-09. The critical discrepancy is its frequency range, limited to DC–6 GHz, whereas the original part supports up to 18 GHz. If the application involves high‑frequency signals between 6 GHz and 18 GHz (e.g., Ku‑band satellite links, radar, or test instrument interconnects), the FMAT1013 may introduce unpredictable additional attenuation, phase distortion, or reflection, leading to degraded performance or system failure. Only when operated below 6 GHz are its parameters—9 dB attenuation, 2 W power rating, and SMA interface—compatible with the original part. Therefore, the upper frequency limit of the system must be strictly verified before considering this substitution.
Analysis ID: D199-4AF8000
Based on part parameters and for reference only. Not to be used for procurement or production.
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