FMAT7460-30 Replacement: SA3S5W-30, SA6S5W-30

Original Part

FMAT7460-30

Fairview Microwave

RF Attenuators 30dB 0 Hz ~ 12.4 GHz 50 Ohms 5W SMA In-Line Module

Alternative Part

SA3S5W-30

Fairview Microwave

RF Attenuators 30dB 0 Hz ~ 3 GHz 50 Ohms 5W SMA In-Line Module

SA6S5W-30

Fairview Microwave

RF Attenuators 30dB 0 Hz ~ 6 GHz 50 Ohms 5W SMA In-Line Module

1. SA3S5W-30 Substitution Conclusion The feasibility of substituting the SA3S5W-30 for the original FMAT7460-30 is low. The key difference lies in the frequency range, which is reduced from 0 Hz to 12.4 GHz for the original part down to 0 Hz to 3 GHz for the SA3S5W-30, while other critical parameters—including attenuation value, power handling, impedance, and package—remain identical. If the original application operates at or below 3 GHz, the SA3S5W-30 can serve as a drop-in replacement with no performance degradation. However, if the application involves RF signals between 3 GHz and 12.4 GHz—such as in high-frequency communications, radar, or test systems—this substitute will not function properly. This could lead to signal distortion, inaccurate attenuation, or system failure. Therefore, a thorough evaluation of the system’s frequency requirements is essential before considering this substitution.

2. SA6S5W-30 Substitution Conclusion The substitution of the SA6S5W-30 for the original FMAT7460-30 is partially feasible. The primary deviation is the frequency range, which is lowered from 0 Hz to 12.4 GHz for the original part to 0 Hz to 6 GHz for the SA6S5W-30, while attenuation, power rating, impedance, and package remain the same. For applications operating within 6 GHz—such as intermediate-frequency wireless equipment or certain test setups—the SA6S5W-30 can be used as a replacement with matched performance. However, if the application requires coverage of the high-frequency band from 6 GHz to 12.4 GHz, as in satellite communications or broadband measurement systems, the substitute will fail due to frequency limitations, resulting in insufficient signal processing capability or degraded system performance. Hence, any substitution decision must be validated against the specific frequency specifications of the application.

Analysis ID: 1FC5-A928000

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