LCAT1005-01 Replacement: FMAT7467-1, LCAT1000-01

Original Part

LCAT1005-01

L-com

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

Alternative Part

FMAT7467-1

Fairview Microwave

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

LCAT1000-01

L-com

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

1. FMAT7467-1 Substitution Conclusion The FMAT7467-1 matches the original part LCAT1005-01 in attenuation value, power handling, impedance, and connector interface. However, its operating frequency range (DC-12 GHz) is narrower than that of the original part (DC-18 GHz). If your application operates below 12 GHz, the FMAT7467-1 can be considered a qualified substitute. For systems utilizing the 12 GHz to 18 GHz band, this part is unsuitable due to insufficient frequency performance. Its use in this higher band may lead to degraded signal attenuation accuracy, worsened VSWR, or even potential device failure.

2. LCAT1000-01 Substitution Conclusion The LCAT1000-01 shares identical parameters with the original LCAT1005-01 in terms of attenuation, power rating, impedance, and connector type. The critical distinction lies in its significantly lower operating frequency range (DC-6 GHz) compared to the original's DC-18 GHz. Consequently, the LCAT1000-01 is only applicable for low-frequency scenarios below 6 GHz. For any operation above 6 GHz, this part is completely unsuitable. It would introduce unacceptable insertion loss and reflection, severely degrading overall RF system performance. Therefore, its substitution feasibility is very low unless it is confirmed that the actual operating band never exceeds 6 GHz.

Analysis ID: A7CC-4C0A000

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