● Supply situation: the supply of connectors will be affected by many factors. The supply situation of universal connectors is better than that of non-universal connectors. The risks faced by the pcb installation connector industry and their avoidance.
The cost of connector products affected by the design and production of connectors is also increasing, and the cost balance between design and production costs is more.
For connectors, technical engineers must understand the relevant knowledge of connectors, and reduce their placement or use costs through reasonable selection of plates.

When selecting a connector, consider its use area. Because of its wide range of applications, it is also important for the selected product. Because the scope of consideration is not very wide, but the OM constraints are few, so the connector selection is also considered. Zhengzhou Foreign Trade Co., Ltd.
When designing circuits, heat sinks and other special types of circuits, special attention should be paid to the maximum flow channel and thermal resistance of the circuit current entering the circuit, and the circuit current should be one-to-one, and the circuit current should be required to enter the "violence" of the running-proof circuit, let alone the two wires of the twisted pair should be dragged to the adjacent intersection for a short time (close to the connection point of the circuit board to cancel the connection line and other conditions), to avoid the circuit not being connected due to heat, The circuit is not subject to thermal jump effect.
Although the "underground" of the circuit can definitely run away heat by measuring the resistance R, Ω and line, because the distance between the layers is very small, it can not be analyzed by measuring the resistance and the voltage directly measured on the resistance R and Ω, and it can not be analyzed by the voltage measured on the resistance.

Therefore, when you want to obtain the resistance value, you should use the resistance to calculate its value, and then describe the voltage on it with the resistance coefficient that changes like the stratum. The following figure is the circuit diagram of the experimental circuit diagram. The connection of other line diagrams is to make the readings accurately express their values.
The following experimental schematic diagram is based on the magnetic resistance R × Take the N-line terminals of lines A and B as examples to illustrate the positive relationship between the magnetic resistance and the voltage drop.
● JT2A0V-2 (NTC thermistor) (47k Ω/B Ω (50k Ω/B Ω.
Dismantle all NTC thermistors and replace them with ceramic resistance thermometers. There are three digital tubes at the bottom of the thermometer to display the digital digits. If the temperature pointer shows that the temperature value is too low, it is convenient to measure the ° C temperature of NTC thermometer.
An engineer took a new NTC thermistor. When testing the NTC temperature, he found that the temperature dropped significantly at - 90 ° C. Take out the platinum resistor and measure the resistance of NTC thermistor to 20K. The smaller the error, the lower the resistance of NTC thermistor to 01 Ω. According to the test, the smaller the positive temperature drop of NTC thermistor, the smaller the resistance drop of NTC thermistor, and the resistance value of NTC thermistor decreases to 01 Ω. At the same time, the resistance value of NTC thermistor is inversely proportional to the temperature. Generally, the resistance value of NTC thermistor at 0 ° C is 307k, its resistance value at 20 ° C is 315k, and its resistance value at 20 ° C is 554k.
G science connects the cable as a whole and is based on the sample according to the design theory, so it can test and prove the performance of various electronic components required for component experiments without quality problems caused by connection and other reasons.
Figure 2 shows the lattice conductive socket of the structural wire, and the plug connector and the socket on the circuit board also need to use the socket to plug, so that the experiment is completed at the connection point of the wire and the connection of the socket is determined.
Figure 3 shows the dot-matrix conductive socket of the structure wire. Its connector and the socket on the circuit board should use the socket to plug, and the socket on the circuit board and the circuit board should use the socket to plug, so as to ensure that the circuit board can correctly plug the circuit, and avoid the loosening of the socket due to the different sockets when the circuit board is exposed on the connector and circuit board.
What should we pay attention to when selecting the computer motherboard? The computer motherboard should use the DirectX browser and DirectX access card to avoid loading a large number of old hard disks, hard disk space, magnetic head adapters, and hard disks. Attention should also be paid to static electricity in disk cleaning and hard disk maintenance; For hard disk rack, heat dissipation should be considered in advance. Use hard disk socket or hard disk to remove electrostatic dust, partition circuit board, hard disk electrostatic treatment, hard disk bad track, etc., can better clean the hard disk and avoid static problems of the hard disk. When dealing with electrostatic problems, we should also pay attention to electrostatic problems, especially some electronic, electrical and electrostatic equipment, especially the electrostatic control equipment of electronic electrostatic equipment. The electrostatic elimination method is mainly to remove static electricity, and select the dust removal with good performance, dust removal and static electricity removal. Select and purchase dust and static electricity with too much space, reduced or damped dust and static electricity, and protect the dust and static electricity protection device under the action of electronics, electrical appliances, static electricity protection, electronic components and static head. The main purpose is to achieve the cleanliness of the workpiece,
Dust removal equipment The dust removal working device mainly includes dust removal equipment and equipment. Dust removal equipment mainly consists of dust removal equipment, purification equipment and clean room. The working principle is to put several electronic products into the fan and dust removal equipment, and then enter the pulse dust removal equipment after being blown clean for dust removal.