Electrical multilayer component and circuit arrangement
View Patent ↗An electrical multilayer component has a monolithic main body that includes a number of alternating ceramic layers disposed one above the other and at least one electrode layer. The main body has two end faces opposite each other and two lateral faces opposite each other. The component also includes a number of outer electrodes and at least three inner electrodes. Each of the inner electrodes is associated with one outer electrode. A first inner electrode protruding from an end face and a second inner electrode protruding from an opposite end face have a first distance to each other. A third inner electrode protrudes from a side face.
1. An electrical multilayer component, comprising:
a monolithic base body comprising a plurality of ceramic layers and at least one electrode layer arranged alternately one above another, wherein the base body has two end surfaces lying opposite one another and two side surfaces lying opposite one another,
a plurality of external electrodes; and
at least three internal electrodes, wherein each internal electrode is assigned a respective external electrode, wherein a first internal electrode protruding from an end surface and a second internal electrode protruding from an opposite end surface are at a first distance from one another, and wherein a third internal electrode protrudes from a side surface, the third internal electrode being at a second distance from the first or second internal electrode.
2. The multilayer component according to claim 1 , wherein the first internal electrode and the second internal electrode overlap.
3. The multilayer component according to claim 1 , wherein the third internal electrode overlaps the first internal electrode or the second internal electrode.
4. The multilayer component according to claim 1 , wherein the first internal electrode has a larger electrode area than the second internal electrode.
5. The multilayer component according to claim 1 , wherein the first internal electrode and the second internal electrode are separated by at least one of the ceramic layers, the first and second internal electrodes delimiting a first electrical functional unit.
6. The multilayer component according to claim 5 , wherein the third internal electrode in a boundary region with one of the first internal electrode or the second internal electrode together with the ceramic layer lying therebetween forms a second electrical functional unit.
7. The multilayer component according to claim 6 , wherein a fourth internal electrode protruding from a side surface is spaced apart from the first internal electrode or the second internal electrode by a third distance and delimits a third electrical functional unit.
8. The multilayer component according to claim 5 , wherein the first electrical functional unit functions as a capacitor.
9. The multilayer component according to claim 8 , wherein the multilayer component has a plurality of capacitors having different capacitances.
10. The multilayer component according to claim 5 , wherein the first electrical functional unit functions as a varistor.
11. The multilayer component according to claim 10 , wherein the multilayer component has a plurality of varistors having different varistor voltages.
12. The multilayer component according to claim 1 , wherein the third internal electrode in a boundary region with one of the first internal electrode or the second internal electrode together with a ceramic layer lying therebetween forms an electrical functional unit.
13. The multilayer component according to claim 1 , further comprising a fourth internal electrode protruding from a side surface, the fourth internal electrode being spaced apart from the first internal electrode or the second internal electrode by a third distance.
14. The multilayer component according to claim 1 , further comprising a dielectric layer that has a low permittivity.
15. The multilayer component according to claim 14 , wherein the dielectric layer comprises a glass, a ZrO 2 , a glass/ZrO 2 composite, an AlO x or a glass/AlO x composite.
16. The multilayer component according to claim 1 , wherein the ceramic layer comprises a varistor ceramic, wherein the varistor ceramic comprises ZnO-BiSb or ZnO-Pr.
17. The multilayer component according to claim 1 , wherein the ceramic layer comprises a capacitor ceramic.
18. The multilayer component according to claim 1 , wherein a region of the first distance, and a region of the second distance each comprise at least one ceramic layer.
19. The multilayer component according to claim 1 , wherein one of the plurality of external electrodes is arranged on an end side and is connected to ground.
20. The multilayer component according to claim 19 , wherein a second one of the plurality of external electrodes is arranged on an end side and is connected to a voltage-carrying line.