1. FMAT7624-10 Substitution Conclusion From an electrical performance and mechanical compatibility perspective, the FMAT7624-10 can directly replace the original part FMAT7461-10. Their key parameters—attenuation (10 dB), impedance (50 Ω), power rating (5 W), and package form—are identical, ensuring baseline functional compatibility. The difference lies in the frequency range: the FMAT7624-10 supports 0 Hz to 18 GHz, which is wider than the original part’s 0 Hz to 12.4 GHz. The substitute part offers broader operating bandwidth and maintains specified performance up to 18 GHz, whereas the original part may exhibit reduced attenuation accuracy or even failure in the 12.4 GHz to 18 GHz range. For systems originally operating at ≤12.4 GHz, the replacement part provides equivalent or better high-frequency stability without introducing additional compatibility issues. The substitution is feasible and offers a performance margin advantage.