Hermetic terminal having pin-isolating feature

摘要

A hermetic terminal is disclosed as having a body including an exterior surface and a plurality of openings in the body accommodating a pin extending through each opening that is hermetically sealed and electrically isolated from the body. The terminal also includes a dielectric pin-isolating feature forming a barrier that increases the operative through-air spacing between the pins of the terminal. The power rating for the terminal is thereby increased without increasing the overall size of the terminal.

主权项

1. A hermetic terminal comprising:
a cup-shaped metallic body member including a generally flat bottom wall and a peripheral side wall, the bottom wall having an exterior surface and a plurality of first openings therein; a plurality of current-conducting pins, at least one current-conducting pin extending through each first opening; a dielectric sealing material extending between and hermetically sealing the current-conducting pins within the first openings; and a dielectric pin-isolating feature attached to the body member comprising a lower base portion and an upper barrier portion, the base portion being sized and shaped to closely fit the periphery of the exterior surface of the bottom wall, and the upper barrier portion comprising a plurality of generally vertically-upstanding, generally planar, non-parallel ribs extending from the base portion in a direction generally parallel to a central axis of the hermetic terminal and terminating beyond the outer ends of the current-conducting pins; and wherein the pin-isolating feature increases the operative through-air spacing between the current-conducting pins.