Tdk Electronics Ag

Epcos Ag

Hermann Grünbichler

Franz Rinner

Thomas Feichtinger

Manfred Schweinzger

Yongli Wang

Pavol Dudesek

Uwe Wozniak

Danilo Suvorov

Michael Hofstätter

Monika Piber

Thomas Pürstinger

Martin Schwingenschuh

Jaromir Kotzurek

Aniko Nagy

Damjan Vengust

Bostjan Jancar

A ceramic component having a ceramic main part containing AxByC1−x−vTi1−y+wO3*(Mn2P2O7)z*Du, in which A is a first dopant selected from a group including neodymium, praseodymium, cerium, and lanthanum, B is a second dopant selected from a group including niobium, tantalum, and vanadium, C is selected from a group including calcium, strontium, and barium, and D includes a metal selected from a group including aluminum, nickel, and iron. x is the proportion of A, y is the proportion of B, v is the proportion of A vacancies, w is the proportion of excess titanium, z is the proportion of Mn2P2O7, u is the proportion of D, and the following applies: 0.0≤x<0.1, 0.0≤y<0.1, 0≤v<1.5*x, 0≤w<0.05, 0.01≤z<0.1, 0≤u<0.05. A method for producing the ceramic component is also disclosed.

Ceramic component and method for producing the ceramic component

In an embodiment a method for manufacturing a multilayer varistor includes providing a first ceramic powder for producing a first ceramic material and at least one second ceramic powder for producing a second ceramic material, wherein the ceramic powders differ from each other in concentration of monovalent elements Xby 50 ppm≤Δc(X)≤5000 ppm, wherein X=(Li, Na, Kor Ag), and wherein Δc denotes a maximum concentration difference occurring between an active region and a near-surface region of the multilayer varistor, slicking of the ceramic powders and forming of green films, partially printing of a part of the green films with a metal paste to form inner electrodes, stacking printed and unprinted green films, laminating, decarbonizing and sintering the green films and applying outer electrodes.

Multilayer varistor and method for manufacturing a multilayer varistor

In an embodiment a multilayer varistor includes a ceramic body made from a varistor material, wherein the ceramic body includes a plurality of inner electrodes, first regions and second regions, wherein the varistor material in the first regions has a first average grain size D, wherein the varistor material in the second regions has a second average grain size D, and wherein D&#x3c;D.

Multilayer varistor having a field-optimized microstructure

An NTC ceramic part, an electronic component for inrush current limiting, and a method for manufacturing an electronic component are disclosed. In an embodiment, an NTC ceramic part for use in an electronic component for inrush current limiting is disclosed, wherein the NTC ceramic part has an electrical resistance in the m&#x3a9; range at a temperature of 25&#xb0; C. and/or at room temperature.

NTC ceramic part, electronic component for inrush current limiting, and method for manufacturing an electronic component

An electric component includes a first base body that connects to a first contact, and an ally conducting element positioned along a current path between the first contact and a second contact. The electrically conducting element melts when an operating voltage of the electric component is exceeded. The electric component also includes an electrically insulating material that substantially surrounds the electrically conducting element and that is arranged so as to prevent an electric flashover between regions of the current path that are bridged by the electrically conducting element.

Electroceramic component

Growing community of inventors

St. Josef, Austria

Hermann Grünbichler