53AS105-K30N3 Replacement: SA6N5WA-30, SA3N5W-30

Original Part

53AS105-K30N3

Rosenberger

RF Attenuators 30dB 0 Hz ~ 10 GHz 50 Ohms 5W N-Type In-Line Module

Alternative Part

SA6N5WA-30

Fairview Microwave

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

SA3N5W-30

Fairview Microwave

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

1. SA6N5WA-30 Substitution Conclusion Given the confirmed maximum system operating frequency does not exceed 6 GHz, the SA6N5WA-30 can serve as a full replacement for the original part. The key difference lies in the frequency range (0–6 GHz versus the original part's 0–10 GHz). Within the 6 GHz to 10 GHz band, this substitute may not maintain the specified 30 dB attenuation accuracy, voltage standing wave ratio (VSWR), and other RF performance metrics. It may even exhibit increased signal reflection or reduced power handling capability due to high‑frequency mismatch. Therefore, substitution is feasible only if the application operates entirely below 6 GHz. For any usage involving frequencies above 6 GHz, this alternative is not acceptable.

2. SA3N5W-30 Substitution Conclusion This part is suitable only for low‑ to mid‑frequency applications where the operating frequency is strictly limited to below 3 GHz, serving as a reduced‑frequency alternative to the original part. The core technical distinction is again the frequency range (0–3 GHz versus the original part's 0–10 GHz). Performance degrades sharply above 3 GHz, potentially introducing significant attenuation error, impedance mismatch, and additional insertion loss, rendering it entirely unsuitable for high‑frequency applications. Substitutability is highly dependent on the system bandwidth and is restricted to low‑frequency use only, offering far less versatility than the original part.

Analysis ID: 7B14-9EF3000

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