LCAT1005-06 Replacement: FMAT1012, FMAT7466-6

Original Part

LCAT1005-06

L-com

RF Attenuators 6dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

FMAT1012

Fairview Microwave

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

FMAT7466-6

Fairview Microwave

RF Attenuators 6dB 0 Hz ~ 12 GHz 50 Ohms 2W SMA In-Line Module

1. FMAT1012 Substitution Conclusion The FMAT1012 is not recommended as a direct replacement for the original LCAT1005-06 part. The key difference lies in a significantly reduced frequency range (from 0–18 GHz down to 0–6 GHz). In applications involving high-frequency signals above 6 GHz—such as satellite communications, radar, or high-frequency test systems—the FMAT1012 will fail to deliver effective attenuation performance. This could lead to signal distortion, increased insertion loss, or system failure. Substitution may only be considered if the application is strictly limited to the low-frequency band below 6 GHz, as in certain wireless or base station equipment. Even then, overall system compatibility must be thoroughly evaluated.

2. FMAT7466-6 Substitution Conclusion The FMAT7466-6 can serve as a replacement for the original LCAT1005-06 under specific conditions, with the primary deviation being its narrower frequency range (from 0–18 GHz down to 0–12 GHz). For applications operating within 12 GHz—such as many microwave intermediate-frequency systems or certain broadband equipment—the FMAT7466-6 can provide comparable attenuation values, power handling, and impedance matching. However, if the original application involves the 12–18 GHz high-frequency band, as found in high-end instrumentation or millimeter-wave preprocessing, substitution will result in loss of high-frequency performance or degraded attenuation accuracy. Therefore, a strict verification of the system’s frequency requirements is essential before making a decision.

Analysis ID: 60E7-72F1000

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