LCAT1000-08 Replacement: AT-108V, M3933/25-34S

Original Part

LCAT1000-08

L-com

RF Attenuators 8dB 0 Hz ~ 6 GHz 50 Ohms 2W SMA In-Line Module

Alternative Part

AT-108V

Hirose Electric Co Ltd

RF Attenuators 8dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

M3933/25-34S

Amphenol SV Microwave

RF Attenuators 8dB 0 Hz ~ 18 GHz 50 Ohms 2W SMA In-Line Module

1. AT-108V Substitution Conclusion The AT-108V can serve as a full replacement for the original LCAT1000-08, as both share identical key electrical parameters—including attenuation (8 dB), power rating (2 W), impedance (50 Ω), and package (SMA In-Line Module). The difference lies in the frequency range: the AT-108V supports 0 Hz to 18 GHz, whereas the original part is limited to 0 Hz to 6 GHz. With its extended bandwidth, the AT-108V offers superior performance in higher‑frequency applications such as microwave communications or radar systems, while remaining fully backward compatible with sub‑6 GHz uses. This ensures equivalent performance under the same operating conditions and provides greater application flexibility.

2. M3933/25-34S Substitution Conclusion The M3933/25-34S is also a viable substitute for the LCAT1000-08, matching the original part in attenuation, power rating, impedance, and package. The primary distinction is again frequency coverage: the M3933/25-34S spans 0 Hz to 18 GHz, compared to the original’s 0 Hz to 6 GHz limit. This enables the substitute to operate normally within the original frequency band while extending capability to higher‑frequency applications, thereby enhancing system bandwidth potential. The difference indicates that the replacement part offers superior performance for more demanding frequency scenarios, with no compatibility concerns.

Analysis ID: 6CF3-6523000

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