Materials: Contact: Phosphor Bronze Contact Plating: Selective Gold Contact Underplating: 0.00127mm [0.000050"] min. Nickel Insulation: PBT & 30% glass fiber reinforced thermo plastic: UL94V-O Electrical: Contact Current Rating: 1 Amp Contact resistance: 30 Miliohms Max. Insulation Resistance: 1000 Megohms @ 500V AC Dielectric Withstanding: 500V AC min. rms Mating Force: 3.0Kg Max. Unmating Force: 0.5Kg Max. Operation Temperature: -55oC to +60oC