Original Part
Alternative Part
1. LCAT1000-09 Substitution Conclusion
The LCAT1000-09 is a fully qualified drop-in replacement for the original SA6H-09. Both parts share identical core electrical specifications: attenuation (9dB), operational frequency range (0-6 GHz), power handling (2W), and impedance (50Ω). Furthermore, they share the same SMA through-hole mechanical package, ensuring complete electrical and mechanical compatibility. The primary difference lies solely in the manufacturer, changing from Fairview Microwave to L-com. For a standard, general-purpose component like a fixed attenuator, this manufacturer substitution typically introduces no performance variance, provided the new supplier is reputable. For applications within the original design frequency (≤6GHz), the LCAT1000-09 is a functionally equivalent substitute.
2. FMAT7620-9 Substitution Conclusion
The FMAT7620-9 is technically a high-performance, backward-compatible substitute, though it may not be cost-effective. Its key technical deviation from the original SA6H-09 is an extended frequency range of 0-18 GHz, which significantly exceeds the original 6 GHz requirement. While this translates to greater bandwidth margin and potentially more stable performance below 6 GHz, it also incurs additional cost for unused frequency capability (6-18 GHz). Its electrical interface (SMA) and impedance (50Ω) remain fully compatible, provided the system power does not exceed 2W. Therefore, substitution is functionally feasible and safe. However, for applications strictly confined to ≤6 GHz, selecting this part constitutes over-specification.
Analysis ID: 764E-3486000
Based on part parameters and for reference only. Not to be used for procurement or production.
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