Original Part
Alternative Part
1. FMAT7467-1 Substitution Conclusion
Given that the maximum operating frequency of the system does not exceed 12 GHz, the FMAT7467-1 can serve as a viable substitute for the FMAT7620-1. The key difference between the two devices lies in their frequency range: the original part covers DC to 18 GHz, while the FMAT7467-1 is limited to DC to 12 GHz. If the system operates within the 12 GHz to 18 GHz band, the attenuation of the substitute device will deviate from its nominal 1 dB specification. This deviation can lead to imprecise signal amplitude control, potentially affecting system performance or measurement accuracy. Aside from this frequency limitation, the two components are identical in attenuation value, power handling capacity, impedance, and interface configuration. Within its applicable frequency range, the FMAT7467-1 provides equivalent functionality.
2. LCAT1000-01 Substitution Conclusion
The LCAT1000-01 is suitable only for systems whose operating frequency is strictly limited to below 6 GHz. Its use as a substitute for the FMAT7620-1 carries significant limitations and risks. The most critical technical discrepancy is, again, the frequency range: the original part supports up to 18 GHz, whereas the LCAT1000-01 is rated only up to 6 GHz. Across the broad 6 GHz to 18 GHz spectrum, the substitute device cannot provide accurate or effective attenuation. This will result in signal distortion, degraded system performance, or outright failure. Although the nominal attenuation, power rating, and impedance are the same for both parts, the substantial difference in frequency coverage makes the feasibility of substitution highly dependent on the specific application band. Unless it is explicitly confirmed that the system operates at very low frequencies, this substitution is not recommended.
Analysis ID: A171-DFBF000
Based on part parameters and for reference only. Not to be used for procurement or production.
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