Description: The PCNS Passive Components Networking Symposium, a bi-annual international event, is exclusively dedicated to passive electronic components. Organized by the EPCI European Passive Components Institute in collaboration with a European university, the 5th edition of the PCNS Passive Components Networking Days Symposium was held 9-12th September 2025 at the Escuela Técnica Superior de Ingeniería de Sevilla of Universidad de Sevilla, Spain. This event was co-hosted by ALTER Technology as the industrial partner. The PCNS 2025 program included 33 technical, industry, and scientific papers organized in six sessions covering topics ranging from quality to the applications of passive components. The PCNS conference program delves into the challenges associated with the development, design, and testing of passive electronic components tailored for use in industrial, automotive, defence, aerospace, and other environments. The PCNS 2025 themes focused on passive components in harsh environments, and Hot Topic Special Session discussed the impact of artificial intelligence on passive electronic components and their consequences.