This eBook aims to help design leaders identify critical challenges in bringing their teams to the forefront of wideband gap semiconductor innovation and, in the process, get ahead of the competition. It outlines five considerations every power electronics engineer must address for GaN-based power electronics: model and schematic design, board parasitic elements, EMI mitigation, thermal management strategies, and power module optimization. Readers will also learn multiple practical use cases where integrated, post-layout simulation plays a pivotal role in designing efficient, robust, and reliable GaN power electronics for mission-critical systems.