Electromagnetic interference filter and method for attaching a lead and/or a ferrule to capacitor electrodes
First Claim
Patent Images
1. An electromagnetic interference (EMI) filter, comprising:
- a capacitor comprised of a dielectric body having at least one first electrode plate and at least one second electrode plates disposed therein, at least one of the first or second electrode plates having an edge exposed at a surface of the dielectric body; and
a conductive lead and/or a conductive ferrule disposed adjacent to the exposed edge of the electrode plate and conductively coupled to the exposed edge of the electrode plates without an intervening conductive termination surface.
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Abstract
A discoidal feedthrough capacitor has its active electrode plates disposed within a dielectric body so that an edge of the active electrode plates is exposed at a surface of a through-hole for a conductive lead. The conductive lead is conductively coupled to the exposed edge of the electrode plates without an intervening conductive termination surface. Similarly, a ground electrode plate set of the feedthrough capacitor may have an edge exposed at the outer periphery of the capacitor for conductively coupling the exposed edge of the ground electrode plate to a conductive ferrule without an intervening conductive termination surface.
58 Citations
22 Claims
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1. An electromagnetic interference (EMI) filter, comprising:
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a capacitor comprised of a dielectric body having at least one first electrode plate and at least one second electrode plates disposed therein, at least one of the first or second electrode plates having an edge exposed at a surface of the dielectric body; and a conductive lead and/or a conductive ferrule disposed adjacent to the exposed edge of the electrode plate and conductively coupled to the exposed edge of the electrode plates without an intervening conductive termination surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A process of manufacturing an electromagnetic interference (EMI) filter, comprising the steps of:
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providing a capacitor comprised of a dielectric body having at least one first electrode plate and at least one second electrode plate therein, at least one of the electrode plates having an edge exposed at a surface of the dielectric body; placing a conductive lead and/or a ferrule adjacent to the exposed edge of the electrode plate or plates; and conductively coupling the exposed edge of the electrode plate or plates directly to the conductive lead and/or ferrule without an intervening conductive termination surface. - View Dependent Claims (19, 20, 21, 22)
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Specification