Original Part
Alternative Part
1. LCAT1006-09 Substitution Conclusion
The LCAT1006-09 can serve as a full and direct replacement for the original LCAT1000-09, offering positive performance headroom. Both parts share identical core specifications: 9 dB attenuation, 50 Ω impedance, 2 W power handling, and SMA Male interface. The primary difference lies in the frequency range: the original part is rated for 0–6 GHz, whereas the LCAT1006-09 extends this to 0–18 GHz. The LCAT1006-09 maintains its specified attenuation accuracy and impedance matching up to 18 GHz. Within the original design's required band of 6 GHz and below, its performance is equal to or better than the original. This substitution represents an upgrade to a higher bandwidth component, thereby increasing the system's high-frequency potential or design margin.
2. LCAT1002-09 Substitution Conclusion
Substituting the LCAT1002-09 for the original LCAT1000-09 carries risk and requires careful evaluation based on the application's operating frequency; direct substitution is generally not recommended. While key parameters (attenuation, impedance, power, and interface) are the same, a critical discrepancy exists in the frequency range: the LCAT1002-09 is specified only for 0–3 GHz, compared to the original's 0–6 GHz. If the system operates between 3 GHz and 6 GHz, using the LCAT1002-09 will result in deviation from the nominal attenuation value, degraded VSWR, and potential signal distortion or reflections, compromising performance in that band. Therefore, substitution is only permissible if the system's maximum operating frequency is confirmed not to exceed 3 GHz.
Analysis ID: 1C1E-E5F6000
Based on part parameters and for reference only. Not to be used for procurement or production.
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