FMAT7467-1 Replacement: LCAT1000-01, LCAT1001-01

Original Part

FMAT7467-1

Fairview Microwave

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

Alternative Part

LCAT1000-01

L-com

RF Attenuators 1dB 0 Hz ~ 6 GHz 50 Ohms 2W SMA In-Line Module

LCAT1001-01

L-com

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

1. LCAT1000-01 Substitution Conclusion As a drop-in replacement with identical specifications (1dB/2W/50Ω/SMA straight), the LCAT1000-01 can fully substitute for the original part in applications from DC to 6GHz. However, it is unsuitable for use in the frequency band above 6GHz up to 12GHz. This limitation stems from its operational frequency range (0-6 GHz), which is only half that of the original part (0-12 GHz). If the system operates beyond 6GHz, this attenuator cannot guarantee its nominal attenuation accuracy and impedance matching performance. This may lead to signal distortion or degradation of overall system specifications.

2. LCAT1001-01 Substitution Conclusion The LCAT1001-01 is only suitable for replacing the original part in low-frequency applications operating at or below 3GHz. Its frequency range (0-3 GHz) is significantly narrower than the original part's (0-12 GHz), which is the most critical limiting factor. It cannot be used in any mid-to-high frequency (>3GHz) circuits. Forcing a substitution in such scenarios would result in uncontrolled attenuation of high-frequency signals and a sharp increase in VSWR. In severe cases, this could impair the proper functioning of the entire RF signal chain.

Analysis ID: B3A8-5D68000

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