Integrated EMI filter and surge protection component
View Patent ↗An improved electronic component is described. The electronic component has a capacitor with first planer internal electrodes in electrical contact with a first termination and second planer internal electrodes in electrical contact with a second termination. A dielectric is between the first planer electrodes and the second planer internal electrodes. The electronic component further comprises at least one of: an inductor comprising a conductive trace wherein said conductive trace is between the first termination and a third termination; and an overvoltage protection component comprising: a third internal electrode contained within the dielectric and wherein the third internal electrode is electrically connected to the first termination; a fourth internal electrode contained within the ceramic and electrically connected to a fourth termination; and a gap between the third internal electrode and the fourth internal electrode.
1. A electronic component comprising:
a capacitor comprising:
first planer internal electrodes in electrical contact with a first termination;
second planer internal electrodes in electrical contact with a second termination; and
a dielectric between said first planer electrodes and said second planer internal electrodes;
at least one of:
an inductor comprising a conductive trace wherein said conductive trace is between said first termination and a third termination; and
an overvoltage protection component comprising:
a third internal electrode contained within said dielectric and wherein said third internal electrode is electrically connected to said first termination;
a fourth internal electrode contained within said ceramic and electrically connected to a fourth termination; and
a gap between the third internal electrode and said fourth internal electrode;
wherein said gap comprises a material selected from air, nitrogen, hydrogen and an inert gas.
2. The electronic component of claim 1 wherein said second termination and said fourth termination are a common termination.
3. The electronic component of claim 1 wherein said first termination and said third termination have a common polarity.
4. The electronic component of claim 1 wherein said gap has a closest separation distance which is less than a closest separation distance between said first termination and said second termination.
5. The electronic component of claim 1 further containing a second gap between said third internal electrode and said fourth internal electrode.
6. The electronic component of claim 1 further comprising at least one fifth electrode which is coplanar with said third internal electrode and said fourth internal electrode wherein a first fifth electrode is separated from said third internal electrode by a first gap and a first fifth electrode is separated from said fourth internal electrode by a second gap.
7. The electronic component of claim 1 where said first planer internal electrodes and said second planer internal electrodes comprises a material selected from a base metal and a precious metal.
8. The electronic component of claim 1 where at least one of said first termination, said second termination, said third termination or said fourth termination comprises a material selected from a base metal and a precious metal.
9. The electronic component of claim 8 wherein at least one of said first termination, said second termination, said third termination or said fourth termination is plated.
10. The electronic component of claim 1 wherein said dielectric comprises barium titanate or calcium zirconate and at least one of said first internal electrode or said second internal electrode comprises a base metal.
11. The electronic component of claim 1 wherein said conductive trace is on a surface of said electronic component.
12. The electronic component of claim 1 wherein said conductive trace is internal to said electronic component.
13. The electronic component of claim 1 further comprising a ferromagnetic or ferrimagnetic material coupled to said conductive trace.
14. The electronic component of claim 13 further comprising a non-conductive shell over at least said ferromagnetic or ferrimagnetic material.
15. The electronic component of claim 1 wherein said first planer internal electrodes and said second planer internal electrodes are in a common plane.
16. The electronic component of claim 15 further comprising a floating electrode between a first common plane and an adjacent second common plane.
17. The electronic component of claim 1 wherein said first planer internal electrodes and said second planer internal electrodes are interleaved.
18. The electronic component of claim 1 further comprising a second conductive trace.
19. The electronic component of claim 18 wherein said second conductive trace is on a surface of said electronic component.
20. The electronic component of claim 18 wherein said second conductive trace is between said first termination and a sixth termination and a second ferromagnetic or ferrimagnetic material coupled to said second conductive trace.
21. The electronic component of claim 2 comprising a fifth internal electrode connected to the third termination and a sixth internal electrode connected to a fifth termination such that a capacitor is formed between the fifth and sixth internal electrodes.
22. The electronic component of claim 21 that further comprises a seventh internal electrode connected to the third termination and an eighth internal electrode connected to the fifth termination and a gap between the seventh internal electrode and eighth internal electrode.
23. The electronic component of claim 1 further comprising a conductive shell with said electronic component encased in said conductive shell.