Uploaded October 2025 | Updated September 2026, 3 weeks ago

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Speaker: Efrain Alzate | Duration ca. 35 min incl. Q&A

Molded inductors offer significant advantages in DC-DC converter applications due to their magnetic material properties, enabling smaller footprints and lower profiles. This expands their applicability to more demanding environments where they face higher electrical and thermal stresses. Over time, these stresses can lead to a degradation of the insulation between magnetic particles, resulting in an undesirable increase in magnetic core losses.

Würth Elektronik identifies this specific degradation mechanism as a percolation phenomenon. This presentation will provide a comprehensive overview of:

- The precise definition and underlying mechanisms of percolation.
- A detailed analysis of how this phenomenon directly affects the long-term performance and reliability of DC-DC converters.
- The significant repercussions of the percolation phenomenon on inductor performance.

#MoldedInductors
#PercolationEffect
#DCDCConverterReliability

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Timestamps:
00:00 Introduction
02:08 Presentation
29:30 Questions and Answers