FMAT1011 Replacement: LCAT1001-06, FMAT7620-6

Original Part

FMAT1011

Fairview Microwave

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

Alternative Part

LCAT1001-06

L-com

RF Attenuators 6dB 0 Hz ~ 3 GHz 50 Ohms 2W SMA In-Line Module

FMAT7620-6

Fairview Microwave

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

1. LCAT1001-06 Substitution Conclusion Conditional substitution; system frequency must be strictly evaluated. The LCAT1001-06 matches the original FMAT1011 part in attenuation value, power handling, impedance, and interface form. However, its operational frequency range is only 0–3 GHz, which is significantly narrower than the original part's 0–6 GHz. If signal frequencies in the application exceed 3 GHz, this attenuator will fail to provide the specified 6 dB attenuation, and its insertion loss and VSWR performance may degrade sharply, leading to system performance degradation or failure. Substitution is permissible only when the system’s maximum operating frequency is confirmed to be ≤3 GHz.

2. FMAT7620-6 Substitution Conclusion Fully compatible; direct substitution is acceptable. The FMAT7620-6 aligns with the original FMAT1011 in key parameters (6 dB attenuation, 2 W power handling, 50 Ω impedance) and mechanical interface (SMA In-Line Module). Moreover, its frequency range (0–18 GHz) fully covers and exceeds the original part's 0–6 GHz specification. Across the entire operating band of the original part, the FMAT7620-6 delivers equivalent or superior RF performance—such as flatter attenuation response and lower VSWR—while offering greater frequency margin. It is therefore an ideal, direct replacement that requires no derating.

Analysis ID: A759-6ED8000

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