FMAT7625-30 Replacement: FMAT7462-30, SA18T5W-30

Original Part

FMAT7625-30

Fairview Microwave

RF Attenuators 30dB 0 Hz ~ 18 GHz 50 Ohms 5W TNC In-Line Module

Alternative Part

FMAT7462-30

Fairview Microwave

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

SA18T5W-30

Fairview Microwave

RF Attenuators 30dB 0 Hz ~ 18 GHz 50 Ohms 5W TNC In-Line Module

1. FMAT7462-30 Substitution Conclusion Substitution is not fully recommended and requires careful evaluation. The FMAT7462-30 is identical to the original part number in terms of attenuation value, power rating, impedance, and connector interface. However, a critical discrepancy exists in its frequency range (0-12.4 GHz), which is significantly narrower than the original's (0-18 GHz). Within the high-frequency band from 12.4 GHz to 18 GHz, this part may fail to maintain its specified 30 dB attenuation accuracy and proper impedance matching. If the application system operates within this high-frequency range, direct substitution is inadvisable, as it could lead to degraded system performance or signal distortion.

2. SA18T5W-30 Substitution Conclusion Substitution is fully feasible, making it an ideal direct replacement. The SA18T5W-30 matches the original FMAT7625-30 in all key electrical parameters: attenuation (30 dB), frequency range (0-18 GHz), power handling (5W), and impedance (50 Ω). It also shares the same TNC connector module form factor. The "SS" in its part description likely denotes its housing material (stainless steel), which constitutes a mechanical and durability enhancement with no impact on electrical performance. This part can directly replace the original, guaranteeing identical RF performance across the entire operational bandwidth.

Analysis ID: C553-A838000

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