1. FMAT7624-10 Substitution Conclusion Based on a technical parameter comparison, the FMAT7624-10 can directly replace the original part SA6N5WA‑10 in both electrical and mechanical aspects. Its key advantage lies in a wider operating frequency range (0–18 GHz vs. 0–6 GHz), making the new device better suited for high‑frequency applications—such as 5G, satellite communications, or high‑frequency test systems—with improved signal‑handling capability and future scalability. Both devices are identical in critical specifications including attenuation (10 dB), impedance (50 Ω), power rating (5 W), and N‑type connectors, ensuring no loss of performance or interface compatibility in the original system up to 6 GHz. Unless the existing system is extremely cost‑sensitive and has no foreseeable high‑frequency requirements, the FMAT7624‑10 represents a superior and safe replacement option.