1. FMAT7466-1 Substitution Conclusion The FMAT7466-1 is fully compatible with the original SA6H-01 in terms of electrical parameters, including identical 1 dB attenuation, 2 W power handling, and 50 Ω impedance. Its frequency range is extended to 0–12 GHz, surpassing the original 0–6 GHz, enabling it to maintain performance in higher‑frequency applications while remaining backward‑compatible and increasing potential system bandwidth. The primary difference lies in the connector configuration: the original part is PLUG‑JACK (one plug, one jack), whereas the FMAT7466‑1 is JACK‑PLUG (one jack, one plug). This may result in reversed mechanical interface orientation; during substitution, it is necessary to verify whether the system connections permit direct mating or if an adapter is required to avoid mismatch. Additionally, the “SS” designation in the description likely indicates a stainless‑steel housing, which improves mechanical durability without affecting electrical performance. Overall, substitution is electrically feasible and offers enhanced performance, but mechanical compatibility must be evaluated to ensure seamless integration.