1. FMAT7624-3 Substitution Conclusion The FMAT7624-3 can fully replace the original part SA6N5WA-03 and offers performance upgrade advantages. Both share identical core parameters (3 dB attenuation, 50 Ω impedance, 5 W power handling, N‑type interface). However, the FMAT7624‑3 extends the frequency range to 0 Hz–18 GHz, significantly exceeding the 6 GHz upper limit of the original part. The new part provides better bandwidth suitability in high‑frequency applications, covering all operating bands of the original part while also supporting higher‑frequency RF systems such as microwave communications and radar. Structural compatibility remains unchanged, allowing direct substitution without circuit modifications.