Original Part
Alternative Part
1. AT-101V Substitution Conclusion
The AT-101V fully matches the key specifications of the original FMAT7467-1, including 1 dB attenuation, 2 W power handling, and 50 Ω impedance. It shares the same SMA In-Line Module package, ensuring both mechanical and electrical compatibility, and can therefore serve as a direct replacement. The primary difference lies in the frequency range: the AT-101V covers 0 Hz to 18 GHz, whereas the original part is rated only up to 12 GHz. This gives the AT-101V superior bandwidth performance in high-frequency applications. If the original system operates at or below 12 GHz, the substitution will provide additional frequency margin, improving system stability and future upgrade flexibility. However, note that the AT-101V may come at a slightly higher cost, and it is advisable to verify that its VSWR and insertion loss meet application requirements across the specific frequency bands of interest.
2. M3933/30-03N Substitution Conclusion
The M3933/30-03N aligns with the basic parameters of the original FMAT7467-1—1 dB attenuation, 2 W power, 50 Ω impedance, and SMA In-Line Module package—making it electrically and mechanically suitable as a replacement. Its frequency range, however, is extended to 0 Hz–32 GHz, significantly wider than the original’s 12 GHz limit. This makes the part well-suited for RF systems operating at higher frequencies. In applications below 12 GHz, the substitution may offer lower frequency-dependent deviation. If the original application is strictly low-frequency, the wider bandwidth design could introduce unnecessary cost. Additionally, attention should be paid to high‑frequency performance validation, as grade and qualification details are unspecified. Prior to substitution, it is recommended to test matching and temperature stability within the actual operating band.
Analysis ID: 4EFB-F159000
Based on part parameters and for reference only. Not to be used for procurement or production.
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