Treatment of corroded connectors

Plating method for automotive connectors. A new plating process called "nxt". Based on the chemistry of a non-phenolic nickel, it provides a very smooth and homogeneous plating surface that can significantly reduce the thickness of the gold plating layer (by about 80%). In safety-critical applications, this technology can support very low signal currents. However, multi-pin connectors present another test for connecting plating systems. Ergonomic considerations dictate that connector insertion force should be as low as possible, but as the circuit count increases, the force required to insert the connector will increase proportionately. However, electrical properties typically indicate that high contact pressures are obtained at each contact (often resulting in high insertion forces), which contradicts the goal of obtaining low connector insertion forces. A new type of contact surface has been developed. Teflon (teflon) microparticles are identically processed in an ordinary tin bath and selectively plated onto the contact surface. The microparticles reduce the insertion force of a typical tin-plated terminal by more than 40%, a solution that allows the connector to have more pins without the need to insert auxiliary devices - enhancing ergonomics and improving connector stability. In addition, measurements have shown that tin-teflon surfaces provide better friction corrosion protection than any other tin-plated contact when the terminal is susceptible to vibration.

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