Electrical Current rating: 1.5amps Voltage rating: 125vac Insulation resistance: 500m mini Withstand voltage: Ac 1000 v rms 50hz or 60hz 1 min Contact resistance: 20mωmax Mechanical Insertion force: 2 contacts ---350g 4 contacts---500g 6 contacts---750g 8 contacts---900g 10 contacts---1050g Retention strength: 7.7kg between jack and plug Durability: 600 mating cycles mini Material Housing: 1)abs resin(ul 94v-0) 2)glass filled pbt (ul 94-0) Spring wire: 0.45mm dia phosphor bronze gold plating over nickel Gold plating: Fu inch, 3u inch, 6u inch, 15u inch, 30u inch, 50u inch