1. ACML-0603-800-T Substitution Conclusion The ACML-0603-800-T can essentially serve as a direct replacement for the original part (Würth 74279261), as both share identical core electrical parameters (0603 package, 80Ω @ 100MHz impedance, 200mA rated current), ensuring equivalent filtering performance and mechanical compatibility. The differences are as follows: First, the maximum DC resistance (DCR) of the ACML-0603-800-T is 160mΩ, lower than the original part's 300mΩ. Under the same operating current, this results in reduced power dissipation and lower temperature rise in the substitute, which benefits both efficiency and reliability. Second, the substitute has a slightly lower maximum height (0.95mm vs. 1.00mm), making it more favorable for space-constrained designs; however, it should be confirmed whether the reduced height affects mechanical clearance or thermal spacing with adjacent components. Overall, these differences represent optimizations or non-critical variations, indicating high substitution feasibility. Nevertheless, it is recommended to validate high-frequency noise suppression performance in the actual circuit and to note potential minor discrepancies in material properties (such as temperature stability) between Abracon and Würth components.