1. FMAT7624-30 Substitution Conclusion The FMAT7624-30 can fully replace the original part SA3N5W-30, as both share identical key parameters: 30 dB attenuation, 5 W power rating, 50 Ω impedance, and connector type. However, the FMAT7624-30 offers a significantly wider frequency response range (0 Hz–18 GHz) compared to the original part’s 0 Hz–3 GHz. This substitution provides greater performance margin in higher‑frequency applications such as microwave bands, while remaining fully compatible and performance‑equivalent in existing sub‑3 GHz scenarios. The replacement therefore extends the system’s usable frequency range without introducing any degradation.