This study is addressing on the reliability of COTS (Commercial Off-The-Shelf) power electronic components and modules which could be used in high reliability systems such as aerospace systems. This paper details the first followed steps to achieve a reliability assessment of some COTS power devices. These first steps are: - Construction analyses for the determination of the packaging assembly technologies of COTS power devices; - Discussion on the material used in COTS power devices; - Synthesis of the potential failure risk analysis under harsh environments;
- Determination of several accelerated ageing tests to check the potential failure modes and mechanisms in power electronic for aerospace systems
