Original Part
70 Ohms @ 100 MHz 1 Power Line Ferrite Bead 0603 (1608 Metric) 4A 20mOhm
Alternative Part
60 Ohms @ 100 MHz 1 Power Line Ferrite Bead 0603 (1608 Metric) 4A 20mOhm
1. ACML-0603U-700-T Substitution Conclusion
The ACML-0603U-700-T can serve as a direct, drop-in replacement for the original part (UPZ1608U700-4R0TF). Both components share identical key performance parameters: an impedance of 70Ω @ 100MHz, a rated current of 4A, a maximum DC resistance (DCR) of 20mΩ, and a 0603 package footprint (1.65mm × 0.80mm × 0.95mm). In power line noise suppression applications, their filtering characteristics, current handling capability, and loss profiles are virtually indistinguishable. The only difference is the manufacturer. Therefore, substitution can be made directly without requiring circuit modifications or introducing performance risks.
2. HFZ 1608PF-600T40 Substitution Conclusion
The HFZ 1608PF-600T40 is compatible with the original part in most parameters (4A current, 20mΩ DCR, 0603 package). However, two notable deviations exist. First, its impedance is 60Ω @ 100MHz, compared to the original's 70Ω. This may result in slightly weaker noise suppression in the higher frequency range. Second, its body length is marginally shorter (1.60mm vs. 1.65mm), which could potentially affect mounting compatibility on the PCB pad. If the application is sensitive to impedance tolerance around 100MHz or has strict PCB layout constraints, the filtering performance and solder joint reliability should be validated. For general-purpose power filtering applications, it can be considered as an alternative substitute.
Analysis ID: 18F3-B549000
Based on part parameters and for reference only. Not to be used for procurement or production.
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