1. FMAT7626-6 Substitution Conclusion The FMAT7626-6 can technically substitute the original FMAT7463-6 part, though physical interface compatibility should be verified. The differences lie in frequency range and connector type: the FMAT7626-6 covers 0 Hz to 18 GHz, outperforming the original part’s 0 Hz to 12.4 GHz, making it more suitable for higher‑frequency applications while remaining backward‑compatible with the original frequency requirements. The FMAT7626‑6 is described as an SMA male fixed attenuator, whereas the original part is specified as a plug‑jack combination. This suggests a potential connector mismatch, so it is necessary to confirm whether the interface is mechanically compatible in the actual installation or if an adapter is required. Other key parameters—attenuation (6 dB), power rating (10 W), impedance (50 Ω), and package (SMA in‑line module)—are identical. Therefore, electrical performance substitution is feasible, but the physical connector difference may affect plug‑and‑play compatibility.