KEMET (NYSE: KEM), a manufacturer of capacitors, is planning to hold a secondary public offering of 8.7 million shares of common stock. Deutsche Bank, BofA Merrill Lynch and UBS are serving as joint book-running managers. The offering is subject to the exercise of a warrant held by Platinum Equity. A portion of the warrant will be exercised and the underlying shares sold in the offering, while the remainder will not be exercised and will continue to be held by the PE firm. Platinum Equity helped KEMET finance a tender offer for outstanding convertible senior notes last year.