Commonly known as (commonly known):φ2.2 round substrate end MATERIAL (material): phosphor bronze; Applicable wire (Applicable Wire Diameter):AWG#18-#22 Insulation 0.D (outer diameter of wire skin):02.1Max Standard packing (packing):6KPcs/R; The product conform to the RoHS (This product complies with the requirements of the RoHS directive)