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In addition to thinking about the additional voltage, the additional current must also be considered. Normally, if it is lower than the additional current, the RJ connector can also be used normally. However, in the planning process, in order to satisfy the additional current request, use the RJ network connection The thermal planning of the device is passed, because when the current flows through the touch pair, there will be conductor resistance and touch resistance. The touch pair will generate heat. When the heat generated by the touch pair exceeds a certain limit, it will damage its insulation and form the surface of the touch pair. The softening of the coating causes problems. In order to reduce such problems, additional current demand constraints, so that the internal temperature rise will not exceed the planned value. Therefore, when selecting the electrical connector, in order to ensure its reliability, additional current It requires more consideration than extra voltage. Don’t, if you choose a multi-core RJ network connector, you also need to choose a derating method for the extra current.

(1) Precision mold processing technology: adopt CAD, CAM and other technologies, introduce high-precision processing equipment from the industry, and use personnel production experience and advanced equipment and technology to achieve high-precision and high-quality mold products.

(2) Precision stamping and precision injection molding technology: to achieve precise, efficient and stable all-round control of various stamping parts and injection molded parts and perfect surface quality to ensure product quality.

The main technology of RJ connector includes 3 aspects:

(3) Automated assembly technology: through the application of precision control technology, semi-automatic inspection machine technology, etc., to overcome the difficulty of manual operation of precision products and improve core competitiveness.

The continuous development of application fields such as the automobile industry and the computer communication industry has gradually expanded the market capacity of connectors, with an average annual growth rate of more than double digits, and great market development potential. China has become the world’s fastest-growing and largest-capacity connector market.

The performance of each manufacturer in different use areas is also different. The overall market capacity of the machinery category is relatively large, and most companies are reflected in this category. However, because the market competition in the machinery category is markedly contrasted, customers are also relatively scattered. There is a significant contrast between the selection of brands in the electric power category and the rail transit category, and the selection of manufacturers is relatively concentrated. The survey results show that because HDC’s primary customer groups are not very sensitive to HDC quotations in

electricity, rail transit, machinery, etc., foreign companies with brand advantages have always maintained a steady development trend, and they are almost in certain market segments. Reach an exclusive position. In 2010, the top five companies in HDC sales in the power sector accounted for 60% of the total sales in the power industry, while the top three companies in the rail transit sector accounted for 70% of the total sales in this category, during which Harding HDC’s market share in the rail transit sector in the mainland is as high as 42%, and many manufacturers only account for a small market share in these areas.

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Although the crystal head is small, its importance in the network cannot be underestimated. In many network failures, a considerable part of it is caused by the poor quality of the crystal head. Crystal heads are also divided into several grades. Generally, the quality of a famous brand such as AMP is better. But the price is more expensive than some other brands on the market. It is recommended not to be cheap when purchasing, otherwise the quality will not be guaranteed, mainly reflected in its contact probe is copper-plated, easy to rust, resulting in poor contact and network failure. The poor quality is also manifested in that the plastic buckle is not tight (usually caused by deformation), which can easily cause poor contact and network interruption. So pay attention to these when buying.