1. FMAT7620-6 Substitution Conclusion The FMAT7620-6 can fully replace the original part FMAT7466-6, as both share identical core parameters—attenuation value of 6 dB, power rating of 2 W, impedance of 50 Ω, and package form. Additionally, the FMAT7620-6 offers a frequency range of 0 Hz to 18 GHz, which covers and exceeds the original part’s range of 0 Hz to 12 GHz. This gives the substitute superior bandwidth performance in applications up to 18 GHz, while maintaining full electrical compatibility at frequencies below this upper limit. If the system operates at or below 12 GHz, the substitution will not introduce any performance degradation. Should the system later require extension into higher frequency bands, the replacement part provides additional frequency margin.