FMAT7466-1 Replacement: LCAT1002-01, FMAT7620-1

Original Part

FMAT7466-1

Fairview Microwave

RF Attenuators 1dB 0 Hz ~ 12 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

LCAT1002-01

L-com

RF Attenuators 1dB 0 Hz ~ 3 GHz 50 Ohms 2W SMA In-Line Module

FMAT7620-1

Fairview Microwave

RF Attenuators 1dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

1. LCAT1002-01 Substitution Conclusion Direct substitution is not recommended. The primary limitation of the LCAT1002-01 is its operational frequency range of DC-3 GHz, which is significantly lower than the original part's (FMAT7466-1) DC-12 GHz specification. Within the 3 GHz to 12 GHz band, key RF performance parameters of the LCAT1002-01—such as attenuation accuracy and VSWR—are likely to degrade severely or become non-functional. This compromises signal integrity across that frequency spectrum. Consequently, this component is suitable only for low-frequency applications where the operating frequency does not exceed 3 GHz.

2. FMAT7620-1 Substitution Conclusion Substitution is recommended, with performance margin. The FMAT7620-1 matches the original part (FMAT7466-1) in all core parameters, including attenuation value, power handling, impedance, and connector interface. Its key technical advantage is an extended frequency range of DC-18 GHz, which fully covers and exceeds the original requirement of DC-12 GHz. The FMAT7620-1 maintains its specified RF performance across the entire frequency band required by the original design and offers improved performance margin at the higher frequency end. It is therefore a functionally equivalent, higher-bandwidth substitute.

Analysis ID: 393E-1932000

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