Original Part
100 Ohms @ 100 MHz 1 Power Line Ferrite Bead 0603 (1608 Metric) 2.5A 35mOhm
Alternative Part
100 Ohms @ 100 MHz 1 Power Line Ferrite Bead 0603 (1608 Metric) 2.5A 35mOhm
100 Ohms @ 100 MHz 1 Power Line Ferrite Bead 0603 (1608 Metric) 3A 30mOhm
1. FBMH1608HM101-T Substitution Conclusion
From the perspective of key electrical parameters (impedance @ frequency, rated current, DCR) and physical package (0603), the FBMH1608HM101-T is identical to the original part, LMMGA160808T101RG. Both are from the same manufacturer (Taiyo Yuden) but belong to different product series. The minor difference in width dimension (0.001 inch) falls well within the standard tolerance for PCB pad design and will not affect soldering or assembly. This part is a direct, equivalent drop-in replacement with high reliability, requiring no design modifications.
2. UPZ1608E101-3R0TF Substitution Conclusion
This part is compatible with the original part in terms of its core filtering characteristic (100Ω @ 100MHz) and package (0603). However, it offers superior electrical performance: a higher rated current (3A vs. 2.5A) and a lower DCR (30mΩ vs. 35mΩ). This results in lower temperature rise and reduced power dissipation under the same operating current. Note that its length and height dimensions are slightly larger. In applications with extremely tight space constraints or strict height limitations, there is a potential risk of mechanical interference. While it is an electrically suitable and superior substitute, it is critical to verify that the PCB layout, especially in the vertical (Z-height) direction, provides sufficient clearance before implementing the substitution.
Analysis ID: 8DD5-B2AF000
Based on part parameters and for reference only. Not to be used for procurement or production.
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