M3933/30-13S Replacement: SA6-06, FMAT1011

Original Part

M3933/30-13S

Amphenol SV Microwave

RF Attenuators 6dB 0 Hz ~ 32 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

SA6-06

Fairview Microwave

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

FMAT1011

Fairview Microwave

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

1. SA6-06 Substitution Conclusion The SA6-06 can serve as a substitute for the original part under strictly defined conditions. The core limitation is its operational frequency range, which is limited to DC-6 GHz, significantly lower than the original part's DC-32 GHz specification. The SA6-06 is only suitable for applications at or below 6 GHz, such as cellular communications, Wi-Fi, and general testing. If deployed in higher frequency bands—for instance, Ku-band or Ka-band satellite communications, or millimeter-wave testing—its critical performance parameters, including attenuation accuracy and VSWR, cannot be guaranteed. This could lead to system failure. Aside from this frequency limitation, both parts share identical nominal attenuation values, power handling capability, and connector interface types.

2. FMAT1011 Substitution Conclusion The situation for the FMAT1011 is identical to that of the SA6-06, and the feasibility conclusion for substitution is the same. It is also a fixed attenuator rated for DC-6 GHz, resulting in a 26 GHz frequency coverage gap compared to the original part. This fundamental difference dictates that it can only be considered a "downgraded substitute" for the original part in low-frequency applications. It must not be used in any scenario involving frequencies above 6 GHz. The FMAT1011 and SA6-06 are likely different part numbers or production batches within the same product family.

Analysis ID: 91A5-2B17000

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