FMAT1013 Replacement: SA18E-09, FMAT7467-9

Original Part

FMAT1013

Fairview Microwave

RF Attenuators 9dB 0 Hz ~ 6 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

SA18E-09

Fairview Microwave

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

FMAT7467-9

Fairview Microwave

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

1. SA18E-09 Substitution Conclusion From a core electrical parameter perspective, the SA18E-09 is a fully viable and performance-upgraded direct substitute for the FMAT1013. Both attenuators share identical specifications for attenuation (9dB), impedance (50Ω), power handling (2W), and connector interface (SMA), satisfying the fundamental replacement criteria. The key differentiating factor is the frequency range: the SA18E-09 supports 0-18 GHz, significantly exceeding the original part's 0-6 GHz limit. The SA18E-09 employs a design and materials optimized for higher frequencies. While it fully covers the entire operational bandwidth of the original part, it provides superior performance at the high-frequency edge (e.g., attenuation flatness, VSWR). This also offers headroom for potential future system upgrades to higher frequency bands. Furthermore, the connector gender (Plug-Jack) is identical, eliminating any physical interconnection concerns.

2. FMAT7467-9 Substitution Conclusion The FMAT7467-9 is an electrically viable substitute for the FMAT1013, but careful attention must be paid to a mechanical interface discrepancy. Its core specifications—attenuation, impedance, and power rating—match the original part. Its frequency range (0-12 GHz) fully covers and exceeds the original's 0-6 GHz, ensuring reliable operation within the intended band. The difference lies in the connector description: the FMAT7467-9 is specified as "JACK-PLUG," whereas the original part is "PLUG-JACK." This indicates that the order of the male (Plug) and female (Jack) SMA connectors is reversed between the two units. During installation, this could lead to cable orientation mismatches. It is essential to verify whether the system's physical layout and cable routing can accommodate this inversion, or if an adapter will be required. This mechanical compatibility issue is a critical consideration for the substitution.

Analysis ID: 11BD-EC6D000

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