AT-101V Replacement: LCAT1001-01, LCAT1002-01

Original Part

AT-101V

Hirose Electric Co Ltd

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

Alternative Part

LCAT1001-01

L-com

RF Attenuators 1dB 0 Hz ~ 3 GHz 50 Ohms 2W SMA In-Line Module

LCAT1002-01

L-com

RF Attenuators 1dB 0 Hz ~ 3 GHz 50 Ohms 2W SMA In-Line Module

1. LCAT1001-01 Substitution Conclusion Not a direct substitute. The key discrepancy lies in the operational frequency range: the original part (AT-101V) covers DC to 18 GHz, whereas the LCAT1001-01 is only rated for DC to 3 GHz. If the application frequency exceeds 3 GHz (e.g., in C, X, or Ku bands), this part will not function correctly. Critical performance parameters such as attenuation accuracy and VSWR will degrade significantly, potentially leading to system failure.

2. LCAT1002-01 Substitution Conclusion Not a direct substitute. The conclusion is identical to that for the LCAT1001-01, as both share the same core specifications. The critical difference from the original part again resides in the operational frequency range (DC-3 GHz vs. DC-18 GHz). This part is suitable only for low-frequency applications below 3 GHz. For the original design's broadband or high-frequency requirements extending up to 18 GHz, it is entirely unsuitable and would introduce unpredictable signal distortion and reflections.

Analysis ID: 253B-EF54000

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