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Hermetic micro D connectors are used in applications where an enclosure needs to be isolated from the outside environment. Panel feed-through is the main application for this type of miniature sealed connectors. In the vast majority of applications, the use of a hermetic encapsulant offers sufficient levels of hermeticity at a reasonable price. Only extreme environments require glass-to-metal sealing.

Sunkye Hermetic Sealed Connectors enable efficient electrical signal and power transmission in severe situations like high temperature high pressure and highly corrosive chemicals. Glass-to-metal sealing is a technique to hermetically insulate electrical conductors that pass from one side of a barrier to the other. The glass melts to both the package and pin, it can act as an airtight barrier and, in the meantime provide insulation between the housing and the pins. In the oil and gas field, as hermetically sealed feedthroughs used to conduct power or signals through the metal walls of vessels of liquefied gas tanks, they must operate reliably for the long term.