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US 10,074,466 B2Granted
NTC component and method for the production thereof
AssigneeEpcos AG
InventorManfred Schweinzger
Life of this patent
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Abstract
An NTC component comprising a first electrode (1) and a second electrode (2) is specified. The NTC component further comprises an NTC element (3) disposed between the first electrode (1) and the second electrode (2), wherein the NTC element (3) comprises a ceramic having the general composition AB2O4, and where A and B each comprise one or more of the materials Mn, Ni, Co and Cu, and B additionally comprises one or more of the materials Fe, Y, Pr, Al, In, Ga and Sb.
Claims12
An NTC component comprising:
- a first electrode and a second electrode;
- and
- an NTC element disposed between the first electrode and the second electrode, wherein the NTC element comprises a ceramic having the general composition AB2O4,
- wherein A and B each comprise one or more of the materials Mn, Ni, Co and Cu,
- wherein the composition of the ceramic is in accordance with the formula (Mnt Niu Cov Cuw )(Mnx Coy Fez )2 O4 with t+u+v+w=1 and x+y+z=1, and
- wherein t is selected from [0.2-0.4], u from [0.18-0.38], v from [0-0.15], w from [0.27-0.47], x from [0.63-0.83], y from [0-0.19] and z from [1.07-1.27].
3 more elements
A process for producing an NTC component, comprising the following steps:
- bonding a first electrode, a base material and a second electrode to give a composite, the base material comprising one or more of the materials Mn, Ni, Co and Cu and/or compounds thereof and one or more of the materials Fe, Y, Pr, Al, In, Ga and Sb and/or compounds thereof, and
- temperature step in which the temperature is selected such that an NTC element is formed from the base material and the base material is sintered to at least one of the first and second electrodes,
- wherein the NTC element, for production of the composite, is applied in structured form to the first electrode.
Dependencies are inferred from the claim text.