KEMET is focused on offering cost-effective solutions – and within Ceramic Capacitors, Base Metal is the leading technology. However, to achieve the lowest ESR and highest Q factor, an electrode material set was required. CBR products are Base Metal, but use Copper in place of Nickel. All other parameters are relatively the same when compared to Nickel Base Metal – these CBR parts have a copper end termination, a plated nickel barrier layer (for leaching protection), and a plated tin barrier (for enhanced solderability).