Original Part
Alternative Part
1. LCAT1001-08 Substitution Conclusion
The LCAT1001-08 is a conditional substitute. It matches the original SA6-08 part exactly in attenuation value, power rating, impedance, and connector interface. The key difference lies in its operational frequency range, which is limited to 0–3 GHz—significantly narrower than the original part's 0–6 GHz range. If your application frequency exceeds 3 GHz, the performance of this attenuator (including attenuation accuracy and voltage standing wave ratio, VSWR) cannot be guaranteed. This may lead to signal distortion or degraded system matching. Therefore, it is only suitable for applications operating at or below 3 GHz.
2. FMAT7620-8 Substitution Conclusion
The FMAT7620-8 is a fully compatible, direct replacement with superior performance. It is identical to the original SA6-08 in attenuation value, power rating, impedance, and connector interface. A key advantage is its extended operational frequency range of 0–18 GHz, which fully covers and exceeds the original part's 0–6 GHz requirement. Across all frequencies of the original design, the FMAT7620-8 provides guaranteed, and potentially better, RF performance—such as flatter frequency response and lower VSWR. It represents a high-reliability substitution with derating margin. The only potential consideration is that its broadband design may result in higher procurement costs.
Analysis ID: 3939-811C000
Based on part parameters and for reference only. Not to be used for procurement or production.
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