LCAT1005-20 Replacement: 32AS102-K20S3, SA3R-20

Original Part

LCAT1005-20

L-com

RF Attenuators 20dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

32AS102-K20S3

Rosenberger

RF Attenuators 20dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

SA3R-20

Fairview Microwave

RF Attenuators 20dB 0 Hz ~ 3 GHz 50 Ohms 2W SMA In-Line Module

1. 32AS102-K20S3 Substitution Conclusion The 32AS102-K20S3 is a viable and ideal direct replacement for the original LCAT1005-20 part. Both components share identical core electrical specifications, including a 20 dB attenuation value, a wide frequency range from DC to 18 GHz, a power handling capability of 2W, and a characteristic impedance of 50 ohms. Furthermore, their mechanical interfaces are both SMA plug-in modules. Therefore, this Rosenberger part can directly replace the original L-com unit without any alteration to system performance or connection methodology, making it suitable for full-bandwidth, high-frequency applications.

2. SA3R-20 Substitution Conclusion The SA3R-20 is a suitable substitute only under strict limitations and is feasible solely for low-frequency applications. While its attenuation value, power rating, and impedance match the original specifications, its effective operational frequency range is limited to DC to 3 GHz, which is significantly lower than the original part's 18 GHz. This is a critical limitation; the SA3R-20 cannot provide the specified attenuation performance at frequencies above 3 GHz. Deploying it within the 3 GHz to 18 GHz range covered by the original design would result in inaccurate signal attenuation, degraded system performance, or outright failure. Consequently, it can only be considered as an alternative option for systems or test scenarios where the operational frequency does not exceed 3 GHz.

Analysis ID: 9EC1-0A48000

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