FMAT7620-9 Replacement: FMAT1013, FMAT7466-9

Original Part

FMAT7620-9

Fairview Microwave

RF Attenuators 9dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

FMAT1013

Fairview Microwave

RF Attenuators 9dB 0 Hz ~ 6 GHz 50 Ohms 2W SMA In-Line Module

FMAT7466-9

Fairview Microwave

RF Attenuators 9dB 0 Hz ~ 12 GHz 50 Ohms 2W SMA In-Line Module

1. FMAT1013 Substitution Conclusion Direct substitution is not feasible. While the attenuation value, power handling, impedance, and interface configuration are identical, the frequency range of the FMAT1013 (0–6 GHz) is significantly narrower than the original part's 18 GHz, which constitutes a critical technical discrepancy. If your application operates above 6 GHz, this attenuator cannot guarantee its specified attenuation accuracy and impedance matching. This may lead to signal distortion, increased reflection, and degraded system performance, rendering it unsuitable for high-frequency or broadband applications.

2. FMAT7466-9 Substitution Conclusion Conditional substitution is possible. The key difference lies in its frequency range (0–12 GHz), which remains lower than the original part's 18 GHz. For applications operating below 12 GHz, it can serve as a direct replacement. However, if the system involves signals within the 12–18 GHz band, its performance will not meet requirements, potentially resulting in inaccurate high-frequency attenuation and degraded VSWR. Substitutability entirely depends on whether your actual operating frequency remains within 12 GHz.

Analysis ID: 851E-46DE000

Based on part parameters and for reference only. Not to be used for procurement or production.