Original Part
Alternative Part
1. SA18S5W-02 Substitution Conclusion
The SA18S5W-02 is a fully compatible direct replacement for the original SA3S5W-02. Both attenuators share identical core electrical parameters: 2dB attenuation, 50Ω impedance, 5W power handling, and an SMA connector interface. The key differentiating factor is the SA18S5W-02's significantly extended frequency range of 0-18 GHz, which far exceeds the original part's 0-3 GHz specification. The SA18S5W-02 offers a wider operational bandwidth and potentially superior high-frequency performance while maintaining full backward compatibility within the original application's frequency band. This substitution represents a performance-upward, equal-power direct replacement. System performance remains unaffected for applications up to 3 GHz, and the swap provides headroom for potential future high-frequency requirements.
2. FMAT7623-2 Substitution Conclusion
The FMAT7623-2 is a viable direct electrical substitute for the original SA3S5W-02. It shares identical core electrical specifications (2dB, 5W, 50Ω) and mechanical form factor (SMA inline module) with both the original part and the SA18S5W-02, and similarly features an extended frequency range of 0-18 GHz. While its part numbering scheme differs and publicly available documentation does not explicitly detail its "grade" or "qualification" status (e.g., military or high-reliability), these factors do not impact its fundamental electrical functionality. For general commercial and industrial applications not requiring specific military or high-reliability certifications, the FMAT7623-2 presents a feasible alternative, offering broadband performance enhancement comparable to the SA18S5W-02.
Analysis ID: 947F-8291000
Based on part parameters and for reference only. Not to be used for procurement or production.
SkyChip © 2026, Email: sales@skychip.com