Kovar lids are used in oscillators,resonators,IC and SAW.Specifications of 2520,3225,4426,4527,5032,6035,7050 are available. 5032 kovar lid1.Type:Flat2.Material:Kovar/4J293.Material thickness:0.08mm,0.1mm4.Plating:100-300 microinches Nickel,EP or ELP.KOVAR LID High reliable kovar seam welding lids are the ideal accessory products for crystal oscillators,harmonic oscillators, SAW and IC packages. ...