Polymer High Reliability2020-07-15T17:40:29+00:00

The KEMET Organic Capacitor (KO-CAP) is a solid electrolytic capacitor with a conductive polymer cathode capable of delivering ultra low ESR and improved capacitance retention at high frequencies. KO-CAP combines the low ESR of multilayer ceramic, the high capacitance of aluminum electrolytic, and the volumetric efficiency of tantalum into a single surface mount package. Unlike liquid electrolyte-based capacitors, KO-CAP has a very long operational life and high ripple current capabilities.

The HRA Polymer Electrolytic offers the same performance advantages as other KO-CAP series with screening options associated with high reliability (Hi-Rel) applications. These HRA grade components offer several surge current screening options.

HRA Polymer solutions are available in different case sizes, form and fit. SMD packages (T540, T541 and T543) follow EIA dimensions/footprints and the through-hole hermetically sealed series, T550 (105ºC) and T551 (125ºC) are equivalent to MIL–PRF–39006/22/25/30/31. T555 and T556 are the SMD versions of T550 and T551 series. The KEMET Tantalum Stack Polymer (TSP) Electrolytic Capacitor is designed to provide the highest CV (capacitance/voltage) ratings in a surface mount configuration. All of KEMET’s Polymer Electrolytic Solutions are available in a stack configuration.

T540 and T541 Series are the first polymer electrolytic capacitors available with failure rate options as defined by KEMET’s KO-CAP Reliability Assessment method. This method utilizes accelerated conditions (voltage and temperature) applied to board-mounted samples to assess long term device reliability.

The failure rates available are B (0.1% per 1,000 hours), C (0.01% per 1,000 hours), and D (0.001% per 1,000 hours). The KO-CAP Reliability Assessment method was developed as a result of over 10 years of research and is described in numerous papers available on www.kemet.com.