Change of potting material of 660 Series Description of Change: Some of Vishay Cera-Mite parts of 660 Series which were potted with black epoxy in the past will be potted by a red epoxy from now on, because black epoxy raw materials are no longer in accordance with REACH requirements. This has no impact on Form, Fit and Function. Please contact a Mouser Technical Sales Representative for further information. 5-0414-29