Original Part
Alternative Part
1. SA6-03 Substitution Conclusion
The SA6-03 is identical to the original FMAT7620-3 part in attenuation, power rating, impedance, and connector interface. The key difference lies in its upper frequency limit of 6 GHz, which is significantly lower than the original part’s 18 GHz. For applications operating below 6 GHz, the SA6-03 serves as a viable drop-in replacement from the same manufacturer (Fairview Microwave), with guaranteed electrical performance and mechanical compatibility. However, for any application involving frequencies between 6 GHz and 18 GHz, the SA6-03 cannot be substituted due to its insufficient bandwidth.
2. LCAT1000-03 Substitution Conclusion
The LCAT1000-03 matches the original FMAT7620-3 in core electrical parameters (3 dB attenuation, 2W power rating, 50Ω impedance) and connector interface (SMA male). Similarly, its upper frequency limit is 6 GHz, and the manufacturer is changed to L-com. For applications below 6 GHz, the LCAT1000-03 is functionally equivalent from an electrical standpoint. However, special attention must be paid to verifying mechanical fit tolerances, material consistency, and potential long-term reliability variations due to the different manufacturer. For any application above 6 GHz, this part is unsuitable as a replacement due to its inadequate frequency coverage.
Analysis ID: 7E18-CA0C000
Based on part parameters and for reference only. Not to be used for procurement or production.
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