LCAT1000-10 Replacement: M3933/30-21S, 32AS102-K10S3

Original Part

LCAT1000-10

L-com

RF Attenuators 10dB 0 Hz ~ 6 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

M3933/30-21S

Amphenol SV Microwave

RF Attenuators 10dB 0 Hz ~ 32 GHz 50 Ohms 2W SMA In-Line Module

32AS102-K10S3

Rosenberger

RF Attenuators 10dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

1. M3933/30-21S Substitution Conclusion From a core electrical parameter perspective, the M3933/30-21S is fully capable of replacing the LCAT1000-10. The key difference lies in its extended frequency range of 0 Hz to 32 GHz, which far exceeds the original part's 6 GHz limit. This part utilizes a higher-performance RF structure and materials, typically providing greater bandwidth margin and stability within the original application band below 6 GHz. Meanwhile, its critical specifications—attenuation value, power handling (2W), and impedance (50Ω)—are identical to those of the original part. The interface format is also SMA In-Line Module, ensuring good physical compatibility. For applications from DC to 6 GHz at power levels not exceeding 2W, the M3933/30-21S can serve as a direct drop-in replacement and may offer better high-frequency performance headroom. However, note that its cost is likely higher due to the increased bandwidth capability.

2. 32AS102-K10S3 Substitution Conclusion The 32AS102-K10S3 is also a viable substitute for the LCAT1000-10. Similar to the above, its primary deviation from the original part is a wider frequency range (0 Hz to 18 GHz), outperforming the original 6 GHz limit. This device exhibits lower attenuation deviation and improved VSWR performance at higher frequencies, providing a higher performance margin within the 6 GHz band. All other key specifications—10dB attenuation, 2W power rating, 50Ω impedance, and SMA In-Line configuration—match the original part. For general attenuation applications from DC to 6 GHz under 2W power conditions, the 32AS102-K10S3 can be directly substituted. Its 18 GHz bandwidth design may enhance system reliability across a broader frequency spectrum. Nevertheless, its cost and availability should be evaluated against project requirements.

Analysis ID: 6363-3D41000

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