Original Part
Alternative Part
1. LCAT1001-08 Substitution Conclusion
Direct substitution is not feasible. While its attenuation value, power handling, and interface are consistent with the original part, a critical discrepancy lies in its frequency range, which is limited to 0–3 GHz—significantly narrower than the original’s 0–18 GHz. In applications exceeding 3 GHz, the performance of this attenuator (including attenuation accuracy and voltage standing wave ratio, VSWR) will degrade substantially or even fail. Therefore, it is suitable only for low‑frequency scenarios and cannot serve as a full‑band replacement.
2. FMAT7620‑8 Substitution Conclusion
Direct substitution is feasible on a parametric basis. This part matches the original in all key specifications, including 8 dB attenuation, 0–18 GHz frequency range, 2 W power handling, and SMA interface. Electrically, it can perform the same function. However, careful verification is still required to ensure its detailed specifications—such as VSWR, temperature stability, and reliability grade—are fully equivalent to those of the original Hirose component. It is also recommended to test the substitute in the actual circuit to confirm no long‑term performance or system‑compatibility deviations.
Analysis ID: D08A-03BE000
Based on part parameters and for reference only. Not to be used for procurement or production.
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