Thermal Aging in Molded Power Inductors
The market demand to increase power density and efficiency in a smaller form factor, has pushed each element to its limits. Moreover, higher power requirements and miniaturization expose passives to rising temperatures, increasing the probability of thermal aging. This is a representative phenomenon that can be found in molded power inductors even with AEC-Q200 Grade 0 qualification and an operating temperature range between – 55 to 150 °C.
This white paper discusses the issues of inductors when exposed to high temperatures for extended time, with a special focus on molded high-current power inductors and how to select inductors considering the effect of thermal aging.
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