Materials and finish:
1)Insulator:PBT thermoplastic,30% glass filled,ul 94v-0 rated.
2)Contact material:Brass
3)Contact finish:selective gold finished 
4)Shell:Nickel (or Tin,Zinc,Gold)plated
 
Specification:
1)Rated load:0.5A 30V DC
2)Contact Resistance:<=0.03Ω
3)Insulation Resistance:>=100MΩ
4)Withstand Voltage:500V AV/Min
5)Insertion and Extraction Force:3 - 20N
6)Life:5000 times