Original Part
Alternative Part
1. SA3S5W-02 Substitution Conclusion
The SA3S5W-02 matches the original SA18S5W-02 in key specifications: attenuation (2 dB), power handling (5 W), impedance (50 Ω), and package (SMA In-Line Module). However, its frequency range is limited to 0 Hz to 3 GHz, whereas the original part supports 0 Hz to 18 GHz. Consequently, the SA3S5W-02 is suitable only for low-frequency applications (systems below 3 GHz). At higher frequencies, such as in millimeter-wave or broadband scenarios, it may not provide accurate attenuation performance and could introduce signal distortion. Therefore, it can serve as a temporary substitute only in applications not exceeding 3 GHz. It is not viable for high-frequency operation.
2. FMAT7623-2 Substitution Conclusion
The FMAT7623-2 aligns completely with the original SA18S5W-02 in all critical parameters: attenuation (2 dB), frequency range (0 Hz – 18 GHz), power rating (5 W), impedance (50 Ω), and package type (SMA In-Line Module). The only noted discrepancy lies in the implied connector type: the FMAT7623-2 is described as "SMA MALE," while the original part is listed as "PLUG-JACK." This may indicate a difference in connector gender or physical configuration. If the connectors are mechanically compatible in the actual application (i.e., they can mate properly with the corresponding jack or plug), then the FMAT7623-2 is a direct and feasible substitute. Otherwise, an additional adapter may be required to ensure a reliable interconnection. It is recommended to verify mechanical compatibility prior to substitution.
Analysis ID: E91E-E86C000
Based on part parameters and for reference only. Not to be used for procurement or production.
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