Effective immediately, Omron has discontinued production of all previous versions of the G6D relay that utilized Silver Cadmium Oxide (AgCdO2) as the contact material. The discontinuation of the G6D is part of Omron's continuing efforts to comply with the EU's directive regarding the Removal of Hazardous Substances (RoHS). That directive includes the elimination of Lead, Cadmium and Cr6 from all piece parts used in the construction of our products.