FMAT7466-9 Replacement: SA18H-09, FMAT1013

Original Part

FMAT7466-9

Fairview Microwave

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

Alternative Part

SA18H-09

Fairview Microwave

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

FMAT1013

Fairview Microwave

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

1. SA18H-09 Substitution Conclusion The SA18H-09 is fully capable of electrically substituting for the original FMAT7466-9 part. Its key performance parameters—attenuation (9dB), impedance (50 Ohms), and power handling (2W)—are identical to the original. Furthermore, its operational frequency range is wider (0-18 GHz vs. 0-12 GHz for the original). This allows the SA18H-09 to cover all original application scenarios while offering additional frequency headroom, demonstrating excellent upward compatibility. One critical note is the connector gender: the SA18H-09 is PLUG-JACK, whereas the original FMAT7466-9 is JACK-PLUG. This indicates reversed input/output interface genders. In practical installation, this may require adjusting the connection orientation or employing an adapter to ensure physical compatibility. Overall, for applications with frequency requirements not exceeding 12 GHz, the SA18H-09 is a viable substitute and even provides extra frequency margin.

2. FMAT1013 Substitution Conclusion The feasibility of substituting the FMAT1013 for the original FMAT7466-9 is low. The primary limitation is its narrower frequency range (0-6 GHz compared to the original's 0-12 GHz). For applications exceeding 6 GHz, the FMAT1013 will either fail to function or exhibit significant performance degradation, severely limiting its applicability. Additionally, there are connector compatibility issues. The FMAT1013 utilizes an SMA 1.22 interface, while the original part uses SMA SS 1.35. This dimensional mismatch may prevent a direct physical connection, necessitating verification or the use of an adapter. Compounding this, the connector gender is also reversed (PLUG-JACK vs. the original's JACK-PLUG), further increasing installation complexity. Unless the application is strictly confined to frequencies below 6 GHz and the connector compatibility issues are resolved, the FMAT1013 is not suitable as a direct substitute.

Analysis ID: 9799-2329000

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