An EMI feedthrough filter terminal assembly includes a capacitor having
first and second sets of electrode plates, a first passageway having a
first termination surface coupling the first set of electrode plates, a
second passageway having a second termination surface coupling the second
set of electrode plates, and a third termination surface exteriorly
coupling the second set of electrode plates. A ferrule is adjacent to the
capacitor and includes an oxide resistant biostable conductive pad, i.e.,
a noble metal pad, on a surface thereof coupled to the third termination
surface. A conductive terminal pin extends through the first passageway in
conductive relation with the first set of electrode plates. A conductive
ground lead extends through the second passageway in conductive relation
with the second set of electrode plates. An insulator is fixed to the
ferrule for supporting the terminal pin in conductive isolation from the
ferrule.
