FMAT1014 Replacement: AT-112V, M3933/25-38S

Original Part

FMAT1014

Fairview Microwave

RF Attenuators 12dB 0 Hz ~ 6 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

AT-112V

Hirose Electric Co Ltd

RF Attenuators 12dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

M3933/25-38S

Amphenol SV Microwave

RF Attenuators 12dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

1. AT-112V Substitution Conclusion From the perspective of key electrical parameters and mechanical interfaces, the AT-112V can serve as a substitute for the original FMAT1014 part. The primary distinction lies in the frequency range: the AT-112V offers a significantly wider bandwidth (0 Hz to 18 GHz) compared to the original part's 6 GHz. This gives the AT-112V superior performance at higher frequencies and enables coverage of a broader range of applications. Within the 6 GHz band, its performance is expected to be comparable to, or potentially better than, the original. All other critical specifications—attenuation value, power handling capacity, impedance, and connector type—are identical. Therefore, the AT-112V is a functionally and mechanically drop-in compatible replacement.

2. M3933/25-38S Substitution Conclusion The M3933/25-38S is also a technically viable substitute for the original FMAT1014 part. Similar to the AT-112V, its most notable improvement is the extended frequency range up to 18 GHz, which enhances its capability for microwave-frequency applications. Its core parameters—12 dB attenuation, 2W power rating, 50-ohm impedance, and SMA connectors—are a perfect match for the original specifications. The M3933/25-38S not only fully meets all original design requirements below 6 GHz but also provides increased operational bandwidth, making it a more comprehensive performance upgrade as a replacement component.

Analysis ID: 1B4B-1E4C000

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