684733-1

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684733-1, also known as the IEC-61000-4-2 standard, is an international standard for electrostatic discharge immunity testing. It is defined by the International Electrotechnical Commission (IEC) and the International Special Committee on Radio Interference (CISPR). The standard is widely used in the electronics industry for product testing and certifying ESD immunity. It provides test methods for evaluating the performance of components, assemblies, and electronic products against ESD pulse discharges.

Application Field

The 684733-1 standard is typically used to test the immunity to electrostatic discharge (ESD) of electronic components, assemblies, and products. It also applies to electronic components and/or equipment for residential, commercial, and industrial use. In addition, this standard also applies to distributed electronics, such as those used in entertainment and industrial automation systems, communications networks, medical equipment, military systems, and avionics.

Testing in accordance with the 684733-1 standard is mandatory for equipment that is used in potentially explosive atmospheres, including those in the medical, aerospace, and military fields. It is also mandatory for certain equipment used in hazardous locations. In addition, some national and international regulations require that equipment comply with the 684733-1 standard.

Working Principle

The purpose of this standard is to ensure that electrical products are immune to the damaging effects of electrostatic discharge. To ensure this, the 684733-1 standard defines two types of tests: performance and verification. These tests measure the equipment\'s performance when subjected to ESD discharges. During testing, the equipment may experience a varying level of ESD pulses.

The performance test determines if the product meets the acceptance criteria of the ESD immunity requirements. Common acceptance criteria include the energy and rise time of the ESD pulse, the change in performance or functionality of the product due to the ESD pulse, and the effect of the ESD pulse on the product\'s safety requirements. For verification testing, the equipment is subjected to ESD pulses of different levels to determine its performance.

Overall, the 684733-1 standard helps manufacturers measure their products\' performance and ensure that their products meet the acceptable levels of ESD immunity. By following this standard, manufacturers can ensure that their products are capable of withstanding the effects of ESD and that they meet the relevant safety and performance standards.

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