LCAT1006-09 Replacement: FMAT7466-9, SA26B-09

Original Part

LCAT1006-09

L-com

RF Attenuators 9dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

FMAT7466-9

Fairview Microwave

RF Attenuators 9dB 0 Hz ~ 12 GHz 50 Ohms 2W SMA In-Line Module

SA26B-09

Fairview Microwave

RF Attenuators 9dB 0 Hz ~ 26 GHz 50 Ohms 2W SMA In-Line Module

1. FMAT7466-9 Substitution Conclusion This part can serve as a substitute under limited conditions. The key difference lies in its narrower frequency range (DC–12 GHz) compared to the original part (DC–18 GHz). If your application operates below 12 GHz, it is fully compatible. However, if the operating frequency extends beyond 12 GHz up to 18 GHz, this attenuator cannot guarantee its specified attenuation accuracy and impedance matching performance. This may lead to signal distortion, increased reflection, and degraded system performance. Therefore, it is not suitable for full-bandwidth replacement.

2. SA26B-09 Substitution Conclusion This part is an ideal and performance‑enhanced substitute. The difference is its significantly wider frequency range (DC–26 GHz) relative to the original part (DC–18 GHz). Across the entire required operating band of the original part (up to 18 GHz), it offers improved performance margin, typically demonstrated by flatter attenuation curves, lower voltage standing wave ratio (VSWR), and better high‑frequency stability. This represents a “derated” usage scenario, providing more reliable and superior electrical performance. It is fully compatible and recommended as a replacement.

Analysis ID: 3DC7-9AC7000

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