LCAT1005-06 Replacement: AT-106V, M3933/25-32S

Original Part

LCAT1005-06

L-com

RF Attenuators 6dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

AT-106V

Hirose Electric Co Ltd

RF Attenuators 6dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

M3933/25-32S

Amphenol SV Microwave

RF Attenuators 6dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

1. AT-106V Substitution Conclusion The AT-106V is a direct functional match to the original LCAT1005-06 part in terms of its nominal key parameters: 6dB attenuation, DC-18GHz frequency range, 2W power handling, 50Ω impedance, and SMA connector interface. Therefore, from a basic electrical performance and mechanical interface perspective, a direct substitution is feasible. The primary differences lie in unspecified high-frequency critical specifications, such as attenuation accuracy, frequency response flatness, temperature coefficient, and Voltage Standing Wave Ratio (VSWR). These parameters typically vary based on the manufacturer's design, process, and material selection. In high-frequency applications (especially near 18GHz) or high-precision scenarios, these variances could introduce subtle deviations in system insertion loss, impedance matching, or signal integrity when substituting. It is recommended to review the AT-106V's detailed datasheet and perform practical measurement verification prior to implementation, particularly in broadband or precision measurement applications.

2. M3933/25-32S Substitution Conclusion The M3933/25-32S similarly matches the core parameters (6dB, DC-18GHz, 2W, 50Ω, SMA) of the original component, meeting the basic conditions for substitution. Potential differences from the original part may reside in attenuation accuracy tolerance, thermal performance under average power, and mechanical interface specifications (e.g., plating, coupling torque). Notably, as a product from Amphenol SV Microwave, which often targets high-reliability or military applications, the M3933/25-32S may feature more stringent environmental robustness indicators. In application environments involving wide temperature ranges, vibration, or sustained high-power loads, the M3933/25-32S may demonstrate superior reliability. However, if the original system has precise requirements for attenuator volume or interface details (e.g., connector length), mechanical dimensional compatibility must be verified. It is advised to confirm that its detailed specifications align with the specific operational requirements of the application before proceeding with the substitution.

Analysis ID: 4056-8392000

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