In rush current of the connector

Speaker: Vamsi Connector | Duration ca. 34 min incl. Q&A All resistors carrying current generate heat, a phenomenon known as the Joule effect. From a thermal perspective, a power connector can be accurately modeled as a simple resistor. The working current of a power connector is typically defined by industry standards, such as UL 1059 in our case, which specifies a maximum temperature rise (∆T) of 30 K (Kelvin is used for temperature difference, while Celsius is for absolute temperature). This implies that at its full working current, the connector's internal temperature will not exceed 30 K above the ambient temperature. The combined temperature rise and ambient temperature are further limited by the maximum operating temperature rating, ensuring connector durability when used with the proper de-rating curve (refer to ANE006 for more details on de-rating). However, certain applications, like the short acceleration phase of an electric scooter, the transition phase of an electric transformer, or capacitance discharge in a lighting ballast, demand a high current for only a brief duration. This presentation will address a crucial question for designers: - Do we have to oversize the connector working current to accommodate this inrush current, or is it permissible to temporarily exceed the specified working current for short periods? - Detailed insights into the thermal behavior of connectors under dynamic, high-current pulses. - Guidelines and recommendations for optimizing connector selection in applications with transient overload conditions. #InrushCurrent #PowerConnectors #ThermalManagement Follow Würth Elektronik on: Facebook group: http://www.we-online.com/facebook-we-... Facebook karriere: http://www.we-online.com/facebook-we-... Instagram group: http://www.we-online.com/instagram/we... Instagram karriere: http://www.we-online.com/instagram-we... LinkedIn: http://www.we-online.com/linkedin Twitter: http://www.we-online.com/twitter TikTok: http://www.we-online.com/tiktok XING: http://www.we-online.com/xing YouTube: http://www.we-online.com/youtube More details about Würth Elektronik eiSos: https://www.we-online.com/en Timestamps: 00:08 Introduction 00:50 Presentation 27:20 Questions and Answers