SA6-10 Replacement: SA3R-10, LCAT1006-10

Original Part

SA6-10

Fairview Microwave

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

Alternative Part

SA3R-10

Fairview Microwave

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

LCAT1006-10

L-com

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

1. SA3R-10 Substitution Conclusion Substitution is not recommended. The SA3R-10 is identical to the original SA6-10 in key parameters such as attenuation value, power handling, and impedance. However, its operational frequency range (0-3 GHz) is only half that of the original part (0-6 GHz). If the application frequency exceeds 3 GHz, the SA3R-10 will not function effectively. Its attenuation value will deviate significantly from the nominal 10dB, potentially introducing excessive insertion loss and signal distortion. This can directly lead to degraded system performance or failure. It can only be used as a lower-frequency substitute in applications where the operating frequency is definitively below 3 GHz.

2. LCAT1006-10 Substitution Conclusion Substitution is acceptable and offers superior performance. The LCAT1006-10 matches the SA6-10 in core parameters like attenuation, power rating, and impedance, while significantly extending the frequency range from 0-6 GHz to 0-18 GHz. Within the original part's specified range of 6 GHz and below, the performance metrics of the LCAT1006-10 (such as attenuation flatness and VSWR) are expected to be comparable or better. This is because a component designed for higher frequencies typically maintains ample performance margin at lower bands. Furthermore, it provides the potential to support future higher-frequency applications. Provided its SMA connector mechanical dimensions are compatible with the original part, it can serve as a direct upgrade replacement.

Analysis ID: E5F0-8BA8000

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