The invention relates to a cobalt-free NTC ceramic having the composition Nia′Cub′Coc′MndO4 where 0.09a′0.6, 0.02b′0.65, 0.12c′0.58 and 1.6d′2.1. The invention further relates to a method for producing a cobalt-free NTC ceramic, the composition of which is derived from a cobalt-containing NTC ceramic of general formula NiaCubCocMndO4 where 0.09a0.6, 0.02b0.65, 0.12c0.58 and 1.6d2.1, wherein Co is replaced by Zn.
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