EMI0603R-68 Replacement: BBGK00160808800Y00, FB160808T-800Y-S-1

Original Part

EMI0603R-68

Delevan

68 Ohms @ 100 MHz 1 Ferrite Bead 0603 (1608 Metric) 600mA 100mOhm

Alternative Part

BBGK00160808800Y00

Pulse Electronics

80 Ohms @ 100 MHz 1 Signal Line Ferrite Bead 0603 (1608 Metric) 600mA 100mOhm

FB160808T-800Y-S-1

Cal-Chip Electronics, Inc.

80 Ohms @ 100 MHz 1 Signal Line Ferrite Bead 0603 (1608 Metric) 600mA 100mOhm

1. BBGK00160808800 Substitution Conclusion Substitution is acceptable, with attention to a key parameter variance. The BBGK00160808800Y00 is fully compatible with the original part in core specifications, including package dimensions (1608), rated current (600mA), and maximum DC resistance (100mΩ). This ensures mechanical fit and equivalent basic electrical performance. The deviation lies in its impedance characteristic, which is 80Ω @100MHz compared to the original part's 68Ω @100MHz. Consequently, this ferrite bead will provide marginally stronger attenuation of high-frequency noise around the 100MHz point. If the original circuit design has stringent requirements for the filter's impedance-frequency curve, this variance could slightly alter the high-frequency filtering response, necessitating post-replacement EMI performance verification. However, for general signal line filtering or power supply decoupling applications, this minor discrepancy is typically within acceptable limits, allowing it to be considered a direct replacement.

2. FB160808T-800Y-S-1 Substitution Conclusion Substitution is acceptable. The variance for this part is identical to that of the BBGK00160808800Y00. The FB160808T-800Y-S-1 matches the original part in all critical specifications: physical size (1608), current rating, and DC resistance. Similar to the BBGK00160808800Y00, its impedance @100MHz is 80Ω, which is 12Ω higher than the original component. This difference directly indicates the device offers higher impedance at the target frequency (100MHz), resulting in more significant suppression of high-frequency noise. In most general-purpose filtering applications, this slight increase in impedance typically does not cause functional circuit issues and may even provide improved high-frequency noise rejection. Caution is advised only if the original design critically depends on the specific 68Ω value to achieve required signal integrity or resonant characteristics, in which case post-substitution system performance should be carefully evaluated. Overall, this is a viable alternative.

Analysis ID: AAD3-9462000

Based on part parameters and for reference only. Not to be used for procurement or production.