Abstract With the mandatory implementation of the RoHS 2.0 revised directive (EU) 2015/863 since July 22, 2019, four phthalates have been added to the list of restricted substances, supplementing the original six restricted substances (lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers). To meet the urgent need for rapid and accurate screening of ...
Abstract: This paper focuses on the EMC EFT immunity tester, especially the LISUN EFT61000 – 4 EFT Immunity Measurement product. It elaborates on the principles of electrical fast transient (EFT) and burst phenomena, the significance of EFT immunity testing, and the relevant international standards. The structure, features, and operation procedures of the LISUN EFT61000 – 4 are introd...
Abstract Conducted emissions, a critical component of electromagnetic interference (EMI), refer to the propagation of unwanted electromagnetic energy through conductive media such as power lines, cables, or connectors. Accurate measurement of conducted emissions is essential for ensuring electronic devices comply with international standards, avoiding interference with other equipment, and maintai...
Abstract With the widespread application of light-emitting diodes (LEDs) in lighting, displays, and medical devices, concerns about their potential photobiological hazards—such as retinal damage from blue light exposure—have grown significantly. The LED Photobiological Radiation Safety Test has become a critical procedure to evaluate these risks and ensure compliance with international stan...
Abstract Electrostatic discharge (ESD) poses a significant threat to the reliability and performance of semiconductor devices, such as integrated circuits (ICs), light-emitting diode (LED) chips, and transistors. To ensure these devices can withstand ESD events, standardized testing using Human Body Model (HBM) and Machine Model (MM) ESD simulator is critical. This paper focuses on the LISUN ESD-8...
Abstract Electrostatic discharge (ESD) generated by human bodies or between objects poses significant risks to electrical and electronic equipment, potentially causing malfunctions or permanent damage. To ensure the reliability of such equipment, evaluating their ESD immunity is essential. The electrostatic discharge gun, as a core testing device, simulates real-world ESD events to assess equipmen...
Abstract Humidity and temperature chamber, also known as environmental test chamber or thermal chamber, is a critical equipment designed to simulate various climatic conditions for evaluating the reliability and durability of industrial products. This paper focuses on the LISUN GDJS-015B humidity and temperature chamber, elaborating on its structural features, technical specifications, working pri...
Abstract This paper explores the High Current Arc Ignition Test, with a focus on the LISUN HCAI-2 High Current Arc Ignition Test System. It elaborates on the fundamental principles of high current arc generation, the structural composition and operational mechanisms of the LISUN HCAI-2 system, and its critical role in ensuring electrical safety across industries. By integrating experimental data, ...
Abstract Hipot Test, short for high potential test, is a critical electrical safety test designed to evaluate the insulation strength of electrical components by applying a higher-than-rated voltage for a specified duration. For capacitors, which are widely used in power systems, electronic devices, and industrial equipment, ensuring robust insulation performance through Hipot Test is essential to...
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