How to Select the Wiring Harness Connector?

The connector is the core component of the wiring harness. The performance of the connector directly determines the overall performance of the wiring harness, and plays a decisive role in the electrical stability and safety of the entire vehicle.

To connect the wiring harness connector on the equipment side, just select the connector that matches it. Despite this, as wiring harness engineers, we should be more professional in connector selection than other component engineers. The selection of connectors at the equipment end follows the following principles:
Consider factors such as the plug-in’s usage environment, temperature, dry and wet zones, vibration, etc. to ensure design reliability.
The manufacturers of male and female connectors must have the same requirements, and the matching of the connectors must be ensured.
Manufacturers of male and female terminals have consistent plating requirements to ensure good contact with electrical devices, minimize contact resistance, and improve reliability. There are no special requirements, generally tin plating is used.
For terminal connectors used in airbags and other applications that require higher performance, gold-plated parts should be given priority to ensure safety and reliability.
If the same kind of sheath is used in the same wire harness, its color must be different, and it is best to use physical error proofing.
Based on the overall coordination of the car’s appearance, black or dark-colored sheathing should be preferred in the engine compartment.
When the connector requires via holes, the outer dimensions of the sheath should be able to meet the sheet metal via holes. Normally, the ratio of the sheet metal hole diameter to the minimum installation width of the sheath should be above 1.5:1.
On the premise of improving connection reliability, consider miniaturization, lightweight and product price.

Selection of wiring harness connectors