In 1919, KEMET Laboratories was founded by Union Carbide Corporation to capitalize on its purchase of Cooper Research Company of Cleveland, Ohio.

[1] In 1990, KEMET Electronics Corporation was acquired from Union Carbide and after two years, the company went public on the New York Stock Exchange under the symbol KEM.

[1] KEMET acquired the tantalum business unit of EPCOS AG in 2007, Evox Rifa Group Oyj and Arcotronics Italia S.p.A. in 2008, Cornell Dubilier Foil, LLC and Niotan Incorporated in 2012.

KEMET Electronics Corporation manufacturers capacitors and other components for computing, telecommunications, medical, aerospace, defense, and automotive markets.

In January 2014, KEMET introduced the High Voltage-High Temperature (HV-HT) Series in C0G Dielectric, improving the efficiency over competitive high temperature (200 degree) precious metal electrode (PME) and base metal electrode (BME) ceramic capacitor devices.