Discussion: Electrical Vehicle On-board Charger Safety Standards – A Comprehensive Discussion
The Virtual Conference on EV Engineering, taking place from September 15 to 18, 2025, will feature a webinar focused on electric vehicle (EV) charging systems. Presented by TDK and TTI, the webinar is scheduled for September 17, 2025, at 9:30 am EDT, and is ideal for design engineers and system architects.
The webinar will delve into the importance of circuit protection components in advanced EV charging systems, emphasising safety and reliability. Key components in TDK's portfolio include PTC inrush current limiters (ICLs), surge arresters (gas discharge tubes or GDTs), leaded disc varistors, multilayer chip varistors, NTC and PTC thermistors, and high-voltage DC contactors.
These components play a crucial role in managing inrush currents, short circuit currents, transient overvoltages, and temperature regulation in onboard chargers and EV charging infrastructure. For instance, TDK's high-voltage DC contactors, such as the HVC50, are designed to safely and reliably connect or disconnect large battery packs at voltages up to 1,500 V and currents up to 750 A continuous (1,000-A surge).
Other protection components like PTC thermistors limit inrush current during power-up, preventing possible damage from sudden current surges. Varistors and surge arresters protect against transient overvoltages caused by switching or lightning events, safeguarding sensitive electronics. NTC thermistors assist in temperature regulation to prevent overheating, further ensuring system reliability and longevity.
The webinar will provide practical insights into protecting sensitive electronics in next-generation EV platforms. It will also cover TDK's portfolio of circuit protection components, designed to protect equipment and people from damage or harm, and meet stringent automotive functional safety and electromagnetic compatibility standards.
Moreover, the webinar will discuss TDK's EMI shielding solutions using advanced materials to mitigate electromagnetic interference risks, which is critical for reliable operation of increasingly complex EV electronic architectures, including onboard chargers.
Registration for the webinar is free. The conference content, covering the entire EV engineering supply chain and ecosystem, will provide insights into various aspects of EV engineering, including motor and power electronics design and manufacturing, cell development, battery systems, testing, powertrains, thermal management, circuit protection, wire and cable, EMI/EMC, and more.
Attendees can look forward to a comprehensive exploration of the role of circuit protection components in advanced EV charging systems, and how they contribute to safe, reliable, and compliant charging systems.
References: [1] TDK. (2023). Circuit Protection Components for Electric Vehicle Charging Systems. Retrieved from https://www.tdk.com/info/ct/products/circuit-protection/ev-charging-systems
[2] TDK. (2023). High-Voltage DC Contactors. Retrieved from https://www.tdk.com/info/ct/products/dc-contactors/high-voltage-dc-contactors
[3] TDK. (2023). EMI Shielding Solutions. Retrieved from https://www.tdk.com/info/ct/products/emc-filters/emc-shielding-solutions
The webinar on September 17, 2025, will explain the role of technology like circuit protection components in ensuring safety and reliability of electric vehicle (EV) charging systems. Key technology advancements such as TDK's high-voltage DC contactors, PTC thermistors, and EMI shielding solutions will be addressed, highlighting their importance in managing electrical risks and interference in EV charging infrastructure.
