Original Part
Alternative Part
1. SA18SS-06 Substitution Conclusion
The SA18SS-06 is electrically identical to the original LCAT1005-06 in all key specifications (6dB attenuation, DC-18GHz frequency range, 2W power handling, 50Ω impedance), making it a theoretically viable direct substitute. The primary and critical risk lies in a potential connector type discrepancy: its description field states "PLUG-JACK SSMA," while its parameter field indicates "SMA In-Line Module." SSMA and SMA interfaces are visually similar but have different mechanical dimensions and are not directly intermateable. If the physical connector is indeed SSMA, substitution is completely impossible. If the physical connector is actually SMA (implying a possible error in the description), substitution is feasible. It is absolutely essential to verify 100% that the physical connector interface of this unit is SMA prior to any substitution attempt; failure to do so will result in an inability to mount and connect the device.
2. FMAT7467-6 Substitution Conclusion
The FMAT7467-6 matches the original part in basic parameters such as attenuation value, power rating, and impedance. However, its most significant and decisive deviation is its frequency range, which is limited to DC-12 GHz, substantially lower than the original part's 18 GHz upper limit. If the signal frequency in the application circuit or test system exceeds 12 GHz, using this part will introduce additional, unintended signal attenuation and distortion. It may also increase VSWR due to impedance mismatch, degrading system performance and potentially damaging upstream components. This component can only be considered a downgraded substitute if it is definitively confirmed that the entire system's operational frequency will never exceed 12 GHz. Otherwise, substitution is not recommended.
Analysis ID: BC8C-BF95000
Based on part parameters and for reference only. Not to be used for procurement or production.
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