SA6-06 Replacement: LCAT1001-06, FMAT7620-6

Original Part

SA6-06

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 Substitution is feasible only under limited conditions and requires careful evaluation. The primary technical disadvantage of the LCAT1001-06 is its operational frequency range (0–3 GHz), which is only half that of the original part SA6-06 (0–6 GHz). If the application frequency exceeds 3 GHz, the accuracy of its attenuation value, impedance matching (VSWR), and power handling capability may degrade significantly, potentially leading to system performance degradation or failure. Substitution may be considered only when the entire system’s operating band is confirmed to be entirely below 3 GHz; otherwise, it is not viable.

2. FMAT7620-6 Substitution Conclusion This represents a fully viable and performance‑superior alternative in terms of electrical characteristics. The FMAT7620-6 matches the core parameters (attenuation, power rating, impedance) of the original SA6-06 exactly, while offering the key advantage of a significantly extended frequency range of 0–18 GHz, fully covering and exceeding the 6 GHz requirement of the original part. Within the original 6 GHz application band, the FMAT7620-6 provides equivalent or even better bandwidth performance and stability, with no risk introduced by frequency mismatch. It is an ideal direct replacement, provided its physical dimensions and cost are acceptable.

Analysis ID: 3304-51BF000

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