Original Part
Alternative Part
1. 32AS102-K40S3 Substitution Conclusion
Based on core electrical parameters (40dB attenuation, 0-18GHz frequency range, 2W power handling, 50Ω impedance) and mechanical package (SMA inline module), the 32AS102-K40S3 is fully equivalent to the original FMAT7611-40, making direct substitution feasible. The difference lies in the manufacturer change from Fairview Microwave to Rosenberger. While their nominal specifications are identical, there may be subtle brand-to-brand variations in actual RF performance (e.g., attenuation flatness across the band, VSWR) and mechanical details (e.g., connector plating, housing material and tolerances). For applications operating at the upper frequency limit (near 18GHz) or with stringent requirements on connector durability, it is recommended to perform verification testing within the actual system to ensure seamless compatibility and performance.
2. SA18L-40 Substitution Conclusion
The SA18L-40 is identical to the original FMAT7611-40 in all core electrical parameters (attenuation, frequency range, power, impedance) and shares the same Fairview Microwave brand, ensuring consistency in performance specifications and product quality. The key difference is its explicitly described "Plug-Jack" SMA interface configuration, whereas the original part is typically described as an "SMA Male" attenuator. The SA18L-40 features a fixed gender interface (one male, one female), while the FMAT7611-40 is conventionally supplied with male connectors on both ends. If the original application requires male connectors on both sides of the attenuator, the SA18L-40 cannot be directly connected physically, necessitating an adjustment to the cable configuration. If the system interfaces happen to match this plug-jack arrangement, then a perfect substitution can be achieved.
Analysis ID: 16CE-DF5A000
Based on part parameters and for reference only. Not to be used for procurement or production.
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