AT-101V Replacement: LCAT1005-01, LCAT1000-01

Original Part

AT-101V

Hirose Electric Co Ltd

RF Attenuators 1dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

LCAT1005-01

L-com

RF Attenuators 1dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

LCAT1000-01

L-com

RF Attenuators 1dB 0 Hz ~ 6 GHz 50 Ohms 2W SMA In-Line Module

1. LCAT1005-01 Substitution Conclusion From the perspective of core electrical performance parameters, the LCAT1005-01 is a viable substitute for the AT-101V. Both units exhibit identical key specifications, including attenuation value (1dB), frequency range (DC-18GHz), impedance (50Ω), power handling capacity (2W), and connector type (straight SMA). Across the entire DC to 18GHz band, their signal attenuation characteristics, power handling capability, and system matching performance can be considered equivalent. Therefore, a direct substitution can be implemented without compromising the performance of the RF link.

2. LCAT1000-01 Substitution Conclusion The LCAT1000-01 has significant limitations as a substitute for the AT-101V and is only suitable for systems operating at frequencies up to 6GHz. The primary technical discrepancy lies in its frequency range (0-6GHz), which is considerably narrower than the original part's 0-18GHz specification. In the high-frequency band from 6GHz to 18GHz, its performance in terms of attenuation accuracy and impedance matching (VSWR) may deviate severely from specifications or even become non-functional. This can lead to signal distortion, increased reflection, and an inability to ensure proper operation in high-frequency systems. Substitution should only be considered if the application frequency band is confirmed to be entirely below 6GHz.

Analysis ID: 71C0-FA18000

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