Original Part
Alternative Part
1. SA6-07 Substitution Conclusion
Direct substitution is not recommended. While the SA6-07 matches the original part (AT-107V) in attenuation value, power rating, and connector interface, its key limitation is an upper operating frequency limit of only 6 GHz, significantly lower than the original part’s 18 GHz. If this attenuator is used in RF systems operating above 6 GHz (e.g., C, X, or Ku bands), its attenuation value will deviate from the nominal 7 dB, and parameters such as insertion loss and VSWR will degrade substantially. This can lead to signal distortion, degraded system performance, or even failure. Consequently, it is only marginally suitable for narrowband applications below 6 GHz, making the substitution high-risk.
2. FMAT7467-7 Substitution Conclusion
This part can serve as a conditional, downgraded substitute. The FMAT7467-7 matches the original part in attenuation, power handling, impedance, and connector interface. The primary difference is its upper frequency limit of 12 GHz, which does not fully cover the original part’s full bandwidth up to 18 GHz. Performance may not be guaranteed in the 12 GHz to 18 GHz range (typically within the Ku band). If your application’s maximum operating frequency is confirmed not to exceed 12 GHz (e.g., primarily operating in S, C, or X bands), this part can be a reliable alternative. However, if the system involves frequencies above 12 GHz, a part covering up to 18 GHz or wider bandwidth must be selected to avoid performance risks.
Analysis ID: 9F93-3D97000
Based on part parameters and for reference only. Not to be used for procurement or production.
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