Contact Material: Brass, Insulator material: Black polyester UL94V--0, Standard: PBT +30%G.F, Current Rating:3Amp , Contact Resistance: 20m© Insulation Resistance1000M© at V=100V Withstanding Voltage:550V Plating: gold plating, or tin plating, Operating Temperature:-55 ~ 105 Soldering Temperature: +260