Construction of Vishay‘s VY1 and VY2 series X and Y capacitors utilize a single disk of high temperature, high stability ceramic with either a copper or silver eletrode coated on both sides. The leads are attached to the electrodes with lead free solder, enabeling RoHS compliance. The disk/eletrode assembly is then encapsulated in a Halogen free epoxy insulating resin, preventing electrical failure and moisture penitration. This simple and robust design lends itself to low cost and very high field reliability.