Home Products Resources Applications Events KEMET.com Overview Screening & Features Selection Guide 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. Important Links T550 Axial & T555 Surface Mount 105°C T551 Axial & T556 Surface Mount 125°C Product Brief Radiation Test White Paper Related Content Webinar | Solutions for High-Reliability Applications Read More Webinar | Product Launch Retrospective: Q2 2021 Read More Webinar | Choosing The Right Polymer Capacitor: A Guide for the Perplexed Read More Webinar | Component Basics: Tantalum Capacitors Read More Is It Hot and Humid in Your Application? A798 Aluminum Polymer Capacitor Can Solve Your Challenges Read More KO-CAP Polymer Capacitors Find a Place Out of This World Read More Ask a QuestionAboutFrequently Asked QuestionsComponent SearchArchived Technical PapersSignup for KEMET EmailSupport CenterCookie Policy Cookies Settings © Copyright 2021 | KEMET ELECTRONICS CORPORATION | All Rights Reserved Facebook Twitter YouTube Instagram LinkedIn By clicking “Accept All Privacy Policy, Terms of Use, Cookies,” you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Privacy Policy Terms of Use Cookies Policy Accept All Privacy Policy, Terms of Use, Cookies Cookies Settings