3 pin 0-2050994-1 2050994-1 Auto Wire Housing Automotive Connector

2.2.1 terminal voltage reduction test method

After the wire is powered on, the overall voltage drop of the terminal pressure connection is measured according to FIG. 4, or the overall voltage drop of the terminal pressure connection of the terminal of the terminal is measured by FIG. Voltage drop. During measurement, the minimum value, middle value and maximum value of the terminal pressure height (C/H) should be distinguished. The maximum voltage when the measured power is used to open the road should be 50mV, and the maximum current of power is 100.5mA.

2.2.2 Standard

The maximum voltage of the terminal pressure should be 2mv/A, and the maximum voltage drop of the terminal should be 3mv/A.

(2) Set the end voltage height (C/W) must be certain. Take the same part -end pressure height (C/W): three types: lower limit value, intermediate value, and upper limit value. The voltage drops, the resistance of the wire part can be reduced to calculate the contact resistance of the pressure connection site. The opening voltage during testing is 20 ± 5mV, and the short -circuit current is 10 ± 0.5mA.

3.1.1 The difference between the wire diameter

Due to the different standards for the wires referenced by QC/T29106MES67010 and 24352NDS0O, the provisions of the conductivity (the number of single copper wire diameter and the number of copper wires) are not the same, and the diameter of the wire nominal nominal diameter is also different. For example, the wire diameter diameter in QC/T includes 0.75mm, and it does not include 0.85mm, as shown in Table 4; MES and NDS standards include 0.85 mm, and do not include 0.75mm as shown in Table 5.

Due to QC/T, MES and NDS standards, the maximum size of the wire is not the same. The maximum diameter of QC/T29106 reaches 70mm2.

From the perspective of pressure regulations (requirements for pressure width and pressure connection height), MES67010 and 24352NDS00 requires the maximum value, intermediate value, and minimum samples of the pressure connection height under certain conditions at a certain condition of the pressure connection width. In terms of terminal pressure connection process, it is not possible to ensure that each end of the terminal of each pressure is the same, but its value can be between the maximum and minimum values of the pressure connection height of the sample, which meets the requirements of the regulatory regulations. Therefore, according to the MES and NDS standards, if the mass production parts meet the pressure regulations, it can be considered that the voltage drop is also qualified. For QC/T29106, if the test sample terminal voltage is high at 12mm, the test voltage drops qualified, and the terminal pressure of the terminal is 11mm or 13mm during mass production. Therefore, MES67010 and 24352NDS00 have more reasonable requirements for testing samples.

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