International Magnetic Material Standards and Component Standard Development Trends
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International Magnetic Material Standards and Component Standard Development Trends

Foreign Magnetic Materials and Components Development Trends
     Magnetic material is widely used as a basic functional material. It involves various departments such as electronic information, electromechanical, automotive, metallurgy, aerospace, aviation, transportation, and biomedicine. In electronic information, magnetic materials and their components are used extensively in consumer electronics products, industrial products or communication equipment, computers and their peripheral equipment, instrumentation, etc., and they also play a decisive role in modern military engineering. Over the years, countries around the world have been working on research and standardization of magnetic materials and components. Countries, especially developed countries, have successively established standards for magnetic materials and their components. With the development of the market economy and the need for convergence of international standards after China's accession to the WTO, it is of utmost importance to understand the development of international and foreign advanced national standards and promote the standardization of magnetic materials and components in China. Therefore, we specialize in international standards. And a brief introduction of the standards of foreign advanced countries to facilitate the adoption.
 
International Magnetic Standards Overview
    The internationally-recognized standards for regional and economic and technologically developed countries include the standards set by the European Committee for Standardization (CEN), the European Electrotechnical Commission for Standardization (CENELEC), and national standards (ANSI) and German national standards (DIN). ), British National Standards (BS), Japanese Industrial Standards (JIS), French National Standards (NF), Russian National Standards (TOCTP).
Over the years, Western Europe and the United States, which are based mainly on Britain, France and Germany, have devoted much energy and time to international and regional standardization activities. They are trying to control the technical power of international standards over a long period of time and have spared no effort to turn their national standards into international standards. . In order to achieve the convergence of European standards and international standards, in 1990, CENELEC (European Electrotechnical Standards Committee) and the IEC signed a bilateral cooperation agreement. In 1991, the European Committee for Standardization (CEN) also signed a technical cooperation agreement with ISO. The two agreements established the principle of international standardization, emphasizing capacity cooperation and avoiding duplication of work. CEN/CENELEC tries its best to wait until the same international standards are used. The standardization projects undertaken by ISO/IEC or CEN/CENELEC are submitted to the two agencies for parallel approval. After the draft standards are passed, they are issued as both international and European standards.
From the current data collected by us on magnetic materials, inductors and transformers, it has been found that British, French, German and other national standards adopt a greater proportion of European standards and IEC standards, and the standard titles of these three countries have many similarities. The standards of the aforementioned countries basically concentrate on three aspects: first, the size standards for ferrite cores and transformers and inductor cores; second, standards for cores and components for quality certification; and third, measurement methods and some basic standards. From the analysis of the standard number, the standard of EN6×××× actually corresponds to the IEC standard. There are few standard surface mount components that are more popular today. Only European standards EN62024-1:2000 “High Frequency Inductive Components—Electrical Performance and Measurement Methods”, EN62025-1:2000 “High Frequency Inductive Components” adopted by Germany. - Non-electrical performance and its measurement methods" and these two project standards have been published as the final draft of the IEC standard. In addition, there are European standards EN129000/A1-96, "European-Germany equivalent of the general specification of RF fixed wound inductors." 》, EN129100/A-96 "Sectional Specifications: Winding Surface Mount Inductors", EN12901/AL-95 "Blank Detail Specifications: Quality Assessment of Surface Mount Wirewound Inductors, Assessment Level E" EN129102/A1-95 Blank Specification: Surface Mount Wirewound Inductor Rating Level P for Quality Assessment, etc.
In recent years, TC51 has worked on surface mounted components that are widely used around the world, and developed IEC61860:2000 "Dimensions of Low Magnetic Cores Made of Magnetic Oxide." It provides serialized magnetics for surface mount transformers. Core size standard. The forthcoming issuance and issuance of IEC62024 "Electrical Properties and Measurement Methods for High-Frequency Inductive Components Part 1: Nahon Range Chip Inductors", IEC62025 "Non-Electrical Properties and Measurement Methods for High-Frequency Inductive Components Part 1: Surface Mount for Electronic Communication Equipment" Fixed inductors will become the basic standard for chip inductors. In addition, as a new TC51 work project proposal, “Noise suppression sheet for digital components Part 1: Terms and definitions Part 2: Measurement method” is also put on the agenda; IEC62211 “Inductance Element Reliability Management” will also be regarded as IEC A new type of standard appears. At the same time, TC51 has also made certain adjustments in the standard system. Standards have emerged as a series of new features of the TC51 standard in recent years. Like the IEC60424 series of standards: Ferromagnetic core surface defect limit guide - Part 1: General, Part 2: RM core, Part 3: EPD core and E-shaped core, Part 4: Toroidal core; IEC 60401 series of standards: Magnetic cores made of soft magnetic materials. Terminology - Part 1: Terms of physical defects - Part 2: Reference dimensions - Part 3: Transformer and inductor core manufacturer's catalog Product data sheet guide; IEC62044 series of standards: Measuring methods for magnetic cores made of soft magnetic materials - Part 1: General, Part 2: Magnetic characteristics at low excitation levels, Part 3: Magnetic characteristics at high excitation levels, etc. In addition, this year TC51 also introduced a "Public Use Specification" (PAS) draft, "Half-Cup Core Size Made of Magnetic Oxide for Inductive Switching Switches," to accelerate the standardization in the development of technical fields.
The strategic policy statement issued last year by IEC/TC51 stated that with the growth of radio communications such as mobile phones, the demand for high-frequency electromagnetic compatibility (EMC) components will increase. Therefore, "high frequency" and "low profile" will be the trend of magnetic components. In the next five years, TC51's activities will strengthen the demand for new markets such as digital television, automotive electronics and networking.
in conclusion
   With the continuous expansion of international trade and science and technology and cultural exchanges, especially the globalization of trade, economic integration, and the rapid development of high-tech, the demand for international standards is increasing, and the use of international standards, or standard The international convergence of standards or international standards has become a global trend. Actively adopting international standards and achieving convergence of standards will be an unstoppable world trend in the 21st century.

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