A hermetic seal is more than air tight and is designed to keep any damaging particles from infecting the outside environment or the function of electronic equipment. This seal can last up to 20 years, whereas an epoxy can become defective in less than 2 years.
Winchester offers both glass-to-metal and ceramic-to-metal sealing solutions.
Ceramax is a patented phase changing compound that provides superior hermetic reliability and outstanding electrical performance with an operational temperature range of -269C to +450C.
Effective for products with an electrical performance that is less than 2 GHz and vacuum applications.
Ceramax seals are compatible with high expansion metal alloys giving Winchester the ability to seal copper alloy contacts into connector shell materials not possible with competing technologies.
Aluminum, titanium and high expansion stainless steel alloys are just a few of the shell materials available.
Winchester’s oxide free glass seal eliminates the need for pre-oxidizing of the metal components prior to glass sealing. This lack of heavy oxide interface between glass and metal allows for: