1. MMZ1005Y-152C Substitution Conclusion Based on a detailed comparison, the MMZ1005Y-152C can serve as a direct substitute for the BBSJ00100505152Y00, offering advantages in key electrical parameters, though minor mechanical dimensional differences must be noted. Specifically: The core specifications of both parts are identical, including the 0402 package size, impedance of 1.5 kΩ @ 100 MHz, and a rated current of 100mA. This ensures functional equivalence for circuit filtering applications. The differences are as follows: 1) The DC resistance (DCR, Max 1Ω) of the MMZ1005Y-152C is lower than that of the original part (Max 1.15Ω). At the same operating current, the TDK component will exhibit lower power dissipation and temperature rise, offering a slight benefit for circuit efficiency and thermal management. 2) The maximum height of the MMZ1005Y-152C (0.55mm) is slightly less than that of the original part (0.60mm), resulting in a thinner physical profile. This can be advantageous in designs with severe space constraints or potential height clearance issues. However, it is necessary to verify that the PCB pad design and assembly process are compatible with this minor dimensional variance. In summary, substitution is electrically feasible and offers performance benefits. Prior to adoption, engineers need only confirm that the height difference does not impact the existing assembly or mechanical structure.