Original Part
Alternative Part
1. SA6H-09 Substitution Conclusion
Conditional substitution, primarily dependent on operating frequency. The SA6H-09 is identical to the original LCAT1005-09 part in terms of attenuation value, power rating, and interface. However, its maximum operating frequency is only 6 GHz, whereas the original part supports up to 18 GHz. If the signal frequency in the application circuit is below 6 GHz, the SA6H-09 can serve as a fully equivalent replacement. However, if the signal frequency covers the range from 6 GHz to 18 GHz, using the SA6H-09 will lead to significant performance degradation—such as deviation from the nominal attenuation value, degraded VSWR, and potential damage—making it unsuitable as a replacement. Prior to substitution, the system's maximum operating frequency must be strictly verified.
2. LCAT1002-09 Substitution Conclusion
Not substitutable due to severely insufficient frequency bandwidth. The difference between the LCAT1002-09 and the original LCAT1005-09 part also lies in the frequency range: its maximum operating frequency is only 3 GHz, far below the original part's 18 GHz. This part can only guarantee performance within 3 GHz. For any applications exceeding 3 GHz—particularly in higher frequency bands such as C, X, or Ku bands—its attenuation accuracy, impedance matching, and power handling capability cannot be assured. This would introduce unacceptable signal distortion and return loss. Except for specialized scenarios involving very low-frequency testing (<<3 GHz), it lacks general feasibility for substitution.
Analysis ID: E223-BB22000
Based on part parameters and for reference only. Not to be used for procurement or production.
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