LCAT1001-07 Replacement: LCAT1000-07, FMAT7620-7

Original Part

LCAT1001-07

L-com

RF Attenuators 7dB 0 Hz ~ 3 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

LCAT1000-07

L-com

RF Attenuators 7dB 0 Hz ~ 6 GHz 50 Ohms 2W SMA In-Line Module

FMAT7620-7

Fairview Microwave

RF Attenuators 7dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

1. LCAT1000-07 Substitution Conclusion The LCAT1000-07 is a fully qualified drop-in replacement for the original LCAT1001-07. Both parts share identical core specifications—7dB attenuation, 50Ω impedance, 2W power handling, and SMA In-Line Module packaging—and are sourced from the same manufacturer (L-com), ensuring design and quality continuity. The key distinction is that the LCAT1000-07 offers a wider frequency range (DC-6 GHz) compared to the original's DC-3 GHz. The substitute maintains its rated attenuation and impedance matching up to 6 GHz, meaning its performance fully covers and exceeds that of the original part. Therefore, the substitution is electrically safe and performance-equivalent within the original design's operating band, while also providing additional bandwidth headroom for potential future high-frequency applications.

2. FMAT7620-7 Substitution Conclusion The FMAT7620-7 is functionally compatible and can serve as an electrical substitute for the original LCAT1001-07. However, this is a cross-manufacturer replacement, requiring attention to supply chain and quality control consistency. Its primary technical advantage is an extremely wide operational bandwidth (DC-18 GHz), which is significantly superior to the original part's DC-3 GHz range. It maintains excellent attenuation accuracy and VSWR across the entire band up to 18 GHz, offering superior broadband performance into the microwave region. For applications strictly limited to below 3 GHz, this ultra-wideband capability represents "over-specification" and may introduce unnecessary cost. If the system has no current or foreseeable requirement for operation above 3 GHz, and priority is given to cost and vendor consistency with the original design, this substitute is not optimal. However, if future high-frequency performance margin or sourcing flexibility is valued, the FMAT7620-7 is a technically viable and performance-superior alternative.

Analysis ID: 5576-03E8000

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