What This Contact Is and Where It Fits
The TE Connectivity 1-66597-0 is a stamped pin contact belonging to the Multimate III+ series, a widely used family of crimp contacts for power and signal applications in industrial, commercial, and transportation equipment. It accepts 14-18 AWG wire and terminates via crimp, making it a standard choice for harness builders who need a field-reliable, repeatable connection. The 30.0µin (0.76µm) gold finish on a Copper Nickel Alloy base provides corrosion resistance and supports repeated mating cycles — a step up from the tin-plated variants in the same series.
Crimp Termination and Wire Range
With a 14-18 AWG wire range, this contact fits common power and signal cable sizes used in control cabinets, panel wiring, and harness assemblies. The crimp termination requires the correct die set for the Multimate III+ series — using the wrong tool can deform the stamped barrel and reduce pull-out force. The stamped construction means the contact body is formed from sheet metal rather than machined, which keeps cost down while still meeting the mechanical and electrical demands of the series.
Gold Plating and Mating Duty
The 30.0µin gold thickness on the mating surface is a solid choice for applications where the contact sees regular connect/disconnect cycles — think test equipment, modular I/O, or field-serviceable harnesses. Gold over Copper Nickel Alloy resists oxidation and fretting corrosion better than tin, so the contact resistance stays stable over the life of the connection. For a permanent, mate-once installation, a tin-plated contact would work at lower cost, but for any duty where the connector gets unmated more than a few times, this gold-plated pin is the right call.