2. MH1608-600T Substitution Conclusion The conclusion is a conditional substitution, requiring verification of actual filtering performance. This part matches the original in core electrical and mechanical parameters: package size (0603), rated current (3A), and DC resistance (40mOhm), satisfying basic power path requirements. Two differences exist: First, its nominal impedance is 60 ohms @ 100MHz, 20% higher (+10Ω) than the original. This provides greater noise attenuation near the target frequency but may slightly affect power supply transient response. Second, its "Filter Type" is listed as "Power, Signal Line," whereas the original is designated only for "Power Line." This suggests its core material may be optimized for a broader frequency response, though this difference typically poses no issue in pure power filtering applications. When substituting, attention should be paid to whether the higher impedance could cause unintended system-level issues in specific circuits (e.g., digital core supplies extremely sensitive to power rail impedance). Testing in the actual circuit is recommended for validation.