What This Connector Is and Where It Fits
The TE Connectivity 2204585-4 is a 3-position header from the Elcon Mini series, configured as a male blade connector for through-hole solder termination. It carries three power contacts in a single row, with the contact layout arranged as 3 Power — a common footprint for a compact DC power interconnect or a battery connector in an energy storage assembly. The housing is rated UL94 V-0, and the operating temperature range of -40°C to 105°C suits it for automotive, industrial, and telecom equipment where the connector lives inside an enclosure but sees thermal cycling from nearby power components.
Contact Finish and What It Means for the Duty
The contacts carry a silver finish with a thickness of 3.00µin (0.076µm). Silver is the standard choice for power blade connectors in this class — it offers lower bulk resistivity than tin and better corrosion resistance in dry environments than unplated copper. The thin plating layer is typical for a power contact where the current density, not the mating cycle count, is the limiting factor. For applications requiring frequent field mating and unmating, a thicker gold plating would be specified; here the silver finish is sized for a semi-permanent or low-cycle power connection.