M3933/30-07N Replacement: AT-103V, 32AS102-K03S3

Original Part

M3933/30-07N

Amphenol SV Microwave

RF Attenuators 3dB 0 Hz ~ 32 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

AT-103V

Hirose Electric Co Ltd

RF Attenuators 3dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

32AS102-K03S3

Rosenberger

RF Attenuators 3dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

1. AT-103V Substitution Conclusion The AT-103V matches the original M3933/30-07N exactly in core performance parameters: 3 dB attenuation, 2 W power handling, 50 Ω impedance, and connector interface. However, its operational frequency range (0–18 GHz) is significantly narrower than the original’s 0–32 GHz. For applications operating below 18 GHz, the AT-103V is a viable drop‑in replacement. For any scenario involving the 18–32 GHz band, the AT-103V will not function properly and may lead to ineffective signal attenuation or severe performance degradation. Substitution feasibility is strictly dependent on whether the system’s maximum operating frequency exceeds 18 GHz.

2. 32AS102‑K03S3 Substitution Conclusion Similar to the AT‑103V, the key difference for the 32AS102‑K03S3 is its frequency range (0–18 GHz), which falls short of the original part’s 0–32 GHz. Within the 0–18 GHz band, it provides identical 3 dB attenuation, 2 W power rating, and 50 Ω matching characteristics, making it a qualified alternative. Nevertheless, this upper‑frequency limitation precludes its use in any application requiring coverage above 18 GHz, such as ultra‑wideband or millimeter‑wave front‑end systems. Its suitability as a substitute is entirely conditional on the target circuit’s actual operating band not exceeding 18 GHz.

Analysis ID: B887-7CD4000

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