FMAT7624-3 Substitution Conclusion A detailed comparison confirms that the FMAT7624-3 can serve as a direct replacement for the SA6N5W-03, offering performance advantages in certain aspects. Both parts share identical key parameters: attenuation value (3 dB), rated power (5 W), characteristic impedance (50 Ω), and physical interface (N‑type). This ensures fundamental electrical and mechanical compatibility. The primary technical difference lies in the frequency range: the SA6N5W-03 has an upper operating frequency of 6 GHz, whereas the FMAT7624-3 extends to 18 GHz. With its wider operational bandwidth, the internal circuit design of the FMAT76243—including resistor materials and structural layout—is typically optimized for higher frequencies. This optimization maintains good attenuation accuracy, impedance matching (VSWR), and stability across the extended band, particularly above 6 GHz. For original applications operating below 6 GHz, the FMAT7624-3 not only fully meets the existing performance requirements but may also deliver more stable or superior RF performance within the original band—such as lower VSWR—due to its enhanced high‑frequency design. Therefore, the substitution is highly feasible and carries no risk of performance degradation.