FMAT7466-9 Replacement: SA26B-09, SA18E-09

Original Part

FMAT7466-9

Fairview Microwave

RF Attenuators 9dB 0 Hz ~ 12 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

SA26B-09

Fairview Microwave

RF Attenuators 9dB 0 Hz ~ 26 GHz 50 Ohms 2W SMA In-Line Module

SA18E-09

Fairview Microwave

RF Attenuators 9dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

1. SA26B-09 Substitution Conclusion From the perspective of key electrical parameters, the SA26B-09 is identical to the original part (FMAT7466-9) in attenuation value (9dB), power rating (2W), and impedance (50Ω). Its frequency range (0-26 GHz) fully covers and significantly exceeds the original's 0-12 GHz range, ensuring performance equivalence within the original operating band while offering capability for extended higher-frequency applications. The critical difference lies in the interface gender sequence: the original part is "JACK-PLUG" (female-male), whereas the SA26B-09 is "PLUG-JACK" (male-female). This results in opposite physical mating orientations. Consequently, the two cannot be directly mated without an adapter. Without modifying the mating connectors in the link, a direct substitution is not feasible.

2. SA18E-09 Substitution Conclusion The SA18E-09 matches the original part exactly in core specifications such as attenuation value, power rating, and impedance. Its frequency range (0-18 GHz) also fully encompasses the original's 0-12 GHz range, guaranteeing equivalent performance within the intended band. Similar to the SA26B-09, it shares the same interface gender sequence discrepancy ("PLUG-JACK" versus the original's "JACK-PLUG"), which is the decisive mechanical characteristic for direct replacement. Despite electrical compatibility and a greater frequency margin, the reversed interface orientation likewise prevents direct substitution of the original part without employing an adapter.

Analysis ID: 7469-F376000

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