INSULATOR:Thermal Plastic UL94V-0.

CONTACT:Copper Alloy. PLATING:Under plate: 50u"~100u” Nicke,Contact Area: 15u"~30u" Selective Gold.

Solder Tails Area: 100u" ~200u”Tin/Lead Free(Brighten Tin/Matte Tin).

SHELL:Copper Alloy. Plating:Nickel 50u"~100u”or Nickel 50u" Selective Gold 3u"~15u.