HW0370208-A
HW0370208-A
HW0370208-A
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☆☆☆ Email: sales5@xrjdcs,com ☆☆☆
由厦门兴锐嘉进出口特 价 销 售！！
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1. Computer module and board interface form. /Board to board pin connection such as the connection mode used in the classical PC104 computer module has the advantages of stable insertion and low cost, and the disadvantages of large size, repeated insertion and withdrawal are easy to damage, and are not suitable for high-speed bus transmission. 1. PNG. . The advantage of the double 220pin connector used in computer module such as PICMG Com Express is that the module is inserted up and down, and the stability is relatively good. 2. PNG. . At present, the core modules of ARM are widely used, such as 200pin SODIMM, 314pin MXM connector, etc. , which have the advantages of convenient insertion and withdrawal, more times, and lower cost of general connector, at the same time need a higher production process guarantee gold finger reliability and durability. 3. PNG. . /Welding as the name implies, the modules are welded directly onto the loading plate. The advantages of direct welding are that no additional fixing is required, and the size of the connector is relatively more compact. The disadvantages are that the production process is also demanding, in particular, the larger the size of the failure rate will be very high, and testability is poor, vulnerable to stress, and not easy to repair and replace after damage. 4. PNG 2:. To sum up, the current Goldfinger program is high recognition, its shortcomings are relatively easy to avoid, so the Goldfinger below on the reliability of the connection to do further analysis. ./gold-plated fingers inevitably involve gold-plated, generally there are two ways of electroless gold deposition and electroplating gold, chemical gold deposition has a very good solderability, and low cost, but the gold coating is soft; electroplating gold coating is compact, high hardness, but relatively high cost. So as far as gold finger is concerned, choose electroplate gold to have higher contact reliability . . /Additional fixing for embedded devices such as automobiles and CNC machines operating in special environments, which require higher vibration reliability, additional fixing of the Goldfinger connection is required, there are two common ways of fixing: 1) locking the module and the loading plate through screws and pillars, which is low cost, but because the rigid fixing may cause uneven stress to the module or the loading plate, and the screw may slowly loosen under the environment of continuous vibration.
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我公司现列卡件备件以供参考:
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