Original Part
Alternative Part
1. FMAT1011 Substitution Conclusion
As a substitute, the FMAT1011 is subject to a major limitation in frequency range, operating only from DC to 6 GHz, which is significantly narrower than the original part's DC to 18 GHz. If your application (e.g., satellite communications, high‑frequency test systems) involves frequencies above 6 GHz, using the FMAT1011 will lead to unpredictable performance, potentially introducing excessive attenuation deviation and degrading VSWR, thereby affecting overall system performance or measurement accuracy. Conversely, if your signal frequency is confirmed to be within 6 GHz, the FMAT1011 can be directly substituted in terms of attenuation value, power handling, and interface type.
2. LCAT1002-06 Substitution Conclusion
The feasibility of substituting this part is low, with the core limitation again lying in its frequency range—it supports only DC to 3 GHz, a substantial gap compared to the original part's DC to 18 GHz. It is completely unsuitable for any mid‑ to high‑frequency and microwave applications (>3 GHz), such as radar, point‑to‑point radio, or high‑speed data links. Operating it beyond its specified frequency range will not only result in inaccurate attenuation but may also cause significant signal reflection due to severe impedance mismatch, potentially interfering with preceding circuitry. Therefore, substitution should not be considered unless the operating band is definitively below 3 GHz.
Analysis ID: 4CC1-7ACD000
Based on part parameters and for reference only. Not to be used for procurement or production.
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