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
The FBMH1608HM101-T and the original part, LLMGA160808T101RG, are both 0603 power ferrite beads manufactured by Taiyo Yuden. Their core electrical parameters are identical (100Ω @ 100MHz, 2.5A rated current, 35mΩ max DCR), and their mechanical dimensions are highly compatible (with only a 0.001-inch / 0.03mm difference in width, which falls within standard manufacturing tolerances). Although the part number description includes "4LN," the specifications clearly indicate a single-wire design. This is likely a part numbering convention or a minor marking discrepancy and does not affect functionality. The FBMH1608HM101-T is a direct, drop-in replacement for the original part, posing no risk to electrical performance or physical compatibility. This constitutes a same-brand, same-series substitution.
2. UPZ1608E101-3R0TF Substitution Conclusion
The UPZ1608E101-3R0TF is a ferrite bead of the same nominal specification from Sunlord. Its impedance-frequency characteristic matches the original part (100Ω @ 100MHz), while offering slightly better electrical performance with a higher rated current (3A) and lower DCR (30mΩ). However, there are minor physical dimension differences (length and height increased by 0.002 inches / 0.05mm each). This part can be considered as an alternative, but two key points require attention: First, brand-to-brand variations may cause deviations in the impedance-frequency curve at higher frequencies (e.g., >500MHz), necessitating verification of actual filtering performance in the target application. Second, the slight dimensional changes could potentially cause placement or soldering compatibility issues in high-density 0603 layouts. It is recommended to validate the PCB footprint adaptation prior to implementation.
Analysis ID: 26F6-FDD2000
Based on part parameters and for reference only. Not to be used for procurement or production.
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