SA3SR-10 Replacement: LCAT1001-10, LCAT1000-10

Original Part

SA3SR-10

Fairview Microwave

RF Attenuators 10dB 0 Hz ~ 3 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

LCAT1001-10

L-com

RF Attenuators 10dB 0 Hz ~ 3 GHz 50 Ohms 2W SMA In-Line Module

LCAT1000-10

L-com

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

1. LCAT1001-10 Substitution Conclusion Feasible, as a direct replacement. The LCAT1001-10 is identical to the original SA3SR-10 part in all key electrical and mechanical specifications, including attenuation value (10 dB), impedance (50 Ω), rated power (2 W), operating frequency band (DC to 3 GHz), and interface type (SMA In-Line Module). There are no technical discrepancies between the two. In any application from DC to 3 GHz, the performance of the LCAT1001-10 will be equivalent to that of the original part, allowing for direct substitution without circuit modifications.

2. LCAT1000-10 Substitution Conclusion Feasible, and represents a higher-performance alternative. The LCAT1000-10 shares the same fundamental parameters as the original SA3SR-10 part—attenuation, impedance, power rating, and interface. Its key advantage, however, is the extended operating frequency range to 6 GHz (compared to the original part's 3 GHz). The LCAT1000-10 maintains performance compatibility with the original part up to 3 GHz, while also guaranteeing specified attenuation accuracy and matching performance within the 3 GHz to 6 GHz band. This provides the system with greater frequency margin and potential for performance upgrades, making it the superior choice.

Analysis ID: B811-EA98000

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