LCAT1005-01 Replacement: LCAT1001-01, LCAT1002-01

Original Part

LCAT1005-01

L-com

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. Substitution Conclusion for LCAT1001-01 The LCAT1001-01 is not a fully qualified substitute for the original part LCAT1005-01. The primary discrepancy lies in its operational frequency range (0 Hz to 3 GHz), which is significantly narrower than the original's DC to 18 GHz specification. In the high-frequency band from 3 GHz to 18 GHz, the LCAT1001-01 cannot guarantee key performance parameters such as attenuation accuracy, impedance matching, and power handling capability. This may lead to system-level issues including signal distortion, increased reflection, and potential device failure. Consequently, this part is only suitable for low-frequency applications where the operating frequency is definitively known not to exceed 3 GHz.

2. Substitution Conclusion for LCAT1002-01 The LCAT1002-01 is not a fully qualified substitute for the original part LCAT1005-01. It shares identical specifications with the LCAT1001-01, with the core limitation being the same maximum operating frequency of 3 GHz, compared to the original part's 18 GHz support. In applications exceeding 3 GHz, this part cannot provide stable and precise 1dB attenuation. It will introduce uncontrolled insertion loss and degraded Voltage Standing Wave Ratio (VSWR), adversely affecting overall system performance. Therefore, it can only be considered as an alternative solution under low-frequency conditions (≤3 GHz).

Analysis ID: B2F0-B301000

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