Method for minimizing stress in feedthrough capacitor filter assemblies

Method for minimizing stress in feedthrough capacitor filter assemblies

A feedthrough terminal pin assembly includes an outer ferrule hermetically sealed through a braze joint to an insulator seated within the ferrule is described. The insulator is also hermetically brazed to at least one terminal pin. The terminal pin is provided with a braze retention structure such a...

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Hauptverfasser: Knappen, Scott, Naugler, Robert, Hussein, Haytham, Shipman, Thomas, Brendel, Richard, Frysz, Christine
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Sprache:eng
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creator Knappen, Scott
Naugler, Robert
Hussein, Haytham
Shipman, Thomas
Brendel, Richard
Frysz, Christine
description A feedthrough terminal pin assembly includes an outer ferrule hermetically sealed through a braze joint to an insulator seated within the ferrule is described. The insulator is also hermetically brazed to at least one terminal pin. The terminal pin is provided with a braze retention structure such as an annular groove that prevents braze material from filleting past the groove. Similarly, either the ferrule or the insulator is provided with a retention structure such as an annular groove that prevents braze material spill out from the insulator/ferrule interface. In that manner, the braze retention structures keep braze material from accumulating in unwanted areas where it could adversely affect hermeticity as well as proper attachment of an EMI filter to the feedthrough assembly.
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title Method for minimizing stress in feedthrough capacitor filter assemblies
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