Original Part
120 Ohms @ 100 MHz 1 Signal Line Ferrite Bead 0603 (1608 Metric) 400mA 250mOhm
Alternative Part
100 Ohms @ 100 MHz 1 Signal Line Ferrite Bead 0603 (1608 Metric) 600mA 150mOhm
120 Ohms @ 100 MHz 1 Ferrite Bead 0603 (1608 Metric) 400mA 250mOhm
1. BBGK00160808101Y00 Substitution Conclusion
The BBGK00160808101Y00 is a direct replacement in terms of package size and basic functionality. However, its key differences are a reduction in impedance from 120Ω to 100Ω (@100MHz), an increase in rated current from 400mA to 600mA, and a decrease in DC resistance (DCR) from 250mΩ to 150mΩ. Consequently, the substitute will exhibit slightly weaker suppression of high-frequency noise (around 100MHz). For applications requiring higher DC current handling or those more sensitive to line voltage drop (due to its lower DCR, resulting in lower power dissipation and voltage drop), this part offers advantages in current capability and energy efficiency. The viability of this substitution depends entirely on the original design's requirements for noise suppression intensity. If the original design has sufficient margin or non-stringent noise suppression requirements, substitution is acceptable. If the noise frequency and amplitude are critical design parameters, substitution is not recommended.
2. FB03YTYN121 Substitution Conclusion
The FB03YTYN121 is fully consistent with the original part BBSJ00160808121Y00 in all critical electrical parameters (impedance of 120Ω @100MHz, rated current of 400mA, DCR of 250mΩ) and mechanical dimensions (0603 package). The only change is the manufacturer, from Pulse to Stackpole. This high degree of parametric consistency ensures identical filtering performance (attenuation characteristics) and electrical loading (current, voltage drop) in the circuit. Therefore, from a purely technical performance standpoint, this part is a directly feasible substitute. It can be used as a drop-in replacement without concern for circuit performance variations due to component differences.
Analysis ID: 9C09-5489000
Based on part parameters and for reference only. Not to be used for procurement or production.
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