Abstract : A major challenge in the aviation industry is to design and develop “more” electric aircraft. Indeed, the main systems use different types of energy such as hydraulic or pneumatic energy. The current trend is to convert these systems to electric power because it has many advantages and would allow economies of mass, energy and maintenance costs. With the increasing electrical systems in the aircraft, arise problems of interference and electromagnetic compatibility between these systems. Moreover, these power systems are subjected to severe working conditions, including extreme temperatures. As part of the FEMINA project (Filtrage Electromagnétiques et Matériaux pour l‟INtégration en Aéronautique), the goal of our team was to study an EMC filter subjected to extreme temperature conditions. This filter is composed of passive elements (capacitors and inductors) and designed to remove interference caused by electrical converter located close to the source of energy and heat (the propeller). As part of my thesis work, I focused on the effect of temperature on the behavior of inductors through the magnetic materials that compose them. I have thus determined the magnetic materials that I felt able to fulfill their role at high temperatures, then I developed a dynamic model of magnetic behavior, taking into account the skin effect and the effect of temperature and finally I tested this new model by including it in a circuit simulator to model a common mode filter that meets the specifications of our industrial partners.