Original Part
Alternative Part
1. SA18SS-06 Substitution Conclusion
Direct substitution is not recommended. While the SA18SS-06 exhibits a complete match with the original component in core parameters such as attenuation value, power handling, and impedance, and its frequency range (0-18 GHz) significantly exceeds that of the original part (0-6 GHz)—providing ample performance margin within the original operating band—a critical incompatibility exists. The SA18SS-06 utilizes an SSMA interface connector, which is physically dimensionally incompatible with the SMA interface. Consequently, the SA18SS-06 cannot be physically mated with the SMA female jack used in the original design, leading to a failed connection. Therefore, direct substitution is not feasible.
2. FMAT7467-6 Substitution Conclusion
Substitution is recommended and represents a superior technical choice. The FMAT7467-6 is fully consistent with the original part in attenuation value, power rating, impedance, and SMA interface type, ensuring direct compatibility for both electrical and physical connections. The key difference is its enhanced frequency range (0-12 GHz) compared to the original part (0-6 GHz). This device guarantees performance at the required 6 GHz and below for the original design, while offering a higher frequency ceiling and improved margin for high-frequency characteristics. This typically translates to a flatter attenuation curve and lower VSWR across the operational bandwidth, thereby enhancing system performance with no associated degradation risk.
Analysis ID: BB90-6869000
Based on part parameters and for reference only. Not to be used for procurement or production.
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