Original Part
120 Ohms @ 100 MHz 1 Power Line Ferrite Bead 0603 (1608 Metric) 2A 50mOhm

Alternative Part
100 Ohms @ 100 MHz 1 Power Line Ferrite Bead 0603 (1608 Metric) 3A 30mOhm

100 Ohms @ 100 MHz 1 Power Line Ferrite Bead 0603 (1608 Metric) 3A 30mOhm

1. ACML-0603U-101B-T Substitution Conclusion
From the perspective of key parameters and package, the ACML-0603U-101B-T presents a viable direct replacement option. The primary differences are as follows: its impedance is reduced from 120Ω to 100Ω (@100MHz), which will result in a slight decrease in high-frequency noise suppression capability near the target frequency (100MHz). Conversely, its rated current is increased from 2A to 3A, and its DC resistance (DCR) is lowered from 50mΩ to 30mΩ. These changes represent performance enhancements, enabling the component to handle higher operating currents while reducing power loss and voltage drop across the DC path. Provided the application circuit is not sensitive to the slightly lower impedance at 100MHz and the minor physical dimension difference (length increased by approximately 0.05mm) falls within the PCB layout tolerance, this part serves as a superior electrical performance alternative.
2. BBUP00160808101Y00 Substitution Conclusion
The BBUP00160808101Y00 is a highly feasible direct substitute. It shares identical core electrical parameters with the ACML-0603U-101B-T (100Ω @100MHz, 3A, 30mΩ DCR), and its package dimensions (1.60mm x 0.80mm x 0.95mm) are an exact match for the original part. The trade-offs remain the same: the lower impedance (100Ω vs. 120Ω) may lead to a marginal reduction in high-frequency attenuation performance, while the higher current rating and lower DCR contribute to improved reliability and lower power dissipation. Given the perfect mechanical fit, this part is an excellent choice for replacing the original component. During substitution, the primary consideration should be verifying that the filter's frequency response still meets the design requirements.
Analysis ID: 9460-217B000
Based on part parameters and for reference only. Not to be used for procurement or production.
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