1.MATERIAL:
  1.1 Housing:thermoplastic plastics
  1.2 terminals:Copper Alloy
    Gold plated in contact area:
    Tin plated in termination
    Nickel Plated overall
  1.3 Shell:Steel&Copper Alloy
      Nickel Plated overall
 2.ELECTRICAL CHARACTERISTICS:
   2.1 Rating Current :1.5 Ampere
   2.2 Rating Voltage :30 V Max
   2.3 Contact Resistance:30 Milli ohms
   2.4 Insulation Resistance:1000 Mega ohms Min.
 3.MECHANICAL CHARACTERISTICS:
   3.1 Connector Mating force：35N MAX(3.57Kgf)
   3.2 Connector Unmating force:10N min(1.02Kgf)
   3.3 Durability:1500Cycles.
 4.ENVIRONMENT CHARACTERISTICS:
   4.1 Operating temperature:-0℃ to +50℃
   4.2 Storage temperature:-20℃ to +60℃

http://www.hlwon.com/upload/201507/71U2-1094-91R.pdf