Things to keep in mind when selecting high current D-SUB connectors

1. Required current. First, the load current and voltage requirements of high-current D-SUB connectors must be understood. The current load capacity of the joint usually depends on the size and contact points of the wire, while the voltage rating depends on the contact distance and insulation material. Therefore, it is necessary to ensure that the contact points are consistent with the size of the supporting conductor to avoid overheating. 2. Information sheet. It is important to know how connector manufacturers specify the current rating and operating voltage of their products. The test grade and data can refer to the manufacturer's standard, but the test standards of each manufacturer are very different. Therefore, when checking the rated current, you should first observe the temperature increase of the connector, that is, the heat dissipation value of the high-current D-SUB connector at a specific current value. 3. Terminal type. Because there are many termination types for connectors, soldered joints are employed to prevent dirt and moisture from entering. The other is crimping type, which is convenient for on-site maintenance, such as compression terminal, winding connection, direct connection, loop connection, eye connection, etc. In addition, the termination type of the connector depends on the size and type of the cable, as well as the voltage and current. 4. Operation of machinery and environment. In various application environments, such as moisture, temperature, vibration and shock of the connector, you must be very careful when choosing high-current D-SUB connectors, and be aware of the mechanical, environmental performance and shell type of high-current D-SUB connectors. Ensure reliable connections and avoid adverse factors such as short circuits. 5. Expenses. Because the price of high-current D-SUB connector mainly depends on the hardware itself. Manpower and materials for assembly and maintenance. So, don't covet petty gains. When choosing a cheap high-current D-SUB connector, you must consider the cost and so on.

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