1. FMAT7623-30 Substitution Conclusion Based on the comparison of key parameters, the FMAT7623-30 can fully replace the original part FMAT7460-30. Both parts share identical core specifications: an attenuation value of 30 dB, a power rating of 5 W, an impedance of 50 Ω, and the same physical package—an inline module with SMA connectors. The only technical difference lies in the frequency range: the FMAT7623-30 extends the upper frequency limit from 12.4 GHz to 18 GHz. This enhancement broadens the applicability of the newer part at higher frequencies, while its electrical performance remains equivalent to the original part below 12.4 GHz. Consequently, the substitution not only meets the original requirements but may also improve system margin in high‑frequency applications. For actual replacement, it is sufficient to verify that the mechanical dimensions and interface compatibility are acceptable.