... is a kind of material for inner lead with excellent electrical conductivity, mechanical properties, curvature, breaking force and excellent chemical ... connecting material for chip and external circuit, widely used in LED packaging and other microelectronics industries.Type&For use: JC2:TO ... , SOT, SOP, DIP, LED JC5:SOP,DIP,QFP.Diode,Triode JE1:QFP, BGA, Ultrafine ...