AVX Corporation has released a new COTS+ version of its TCR Professional Series polymer tantalum chip capacitors. Designed for use in critical military systems, the new TCB Series COTS+ polymer tantalum capacitors feature conductive polymer electrodes, which enable extremely low ESR and reduce the potential for ignition failure. Additionally, each batch undergoes lot conformance testing and additional reliability level verification in order to provide higher reliability than standard polymer tantalum capacitors.
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Life tested to 0.1% per 1,000 hours with a 90% confidence level, designed to withstand biased humidity testing at 85 degrees C and 80% of rated humidity for 120 hours, and rated for operating temperatures as high as 105 degrees C, TCB Series capacitors are designed for use in ac-dc power supplies, dc-dc converters, filtering, decoupling, timing circuits, and pulsing circuits.
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Currently available in a single case size (AVX Code: D, EIA Code: 2917, EIA Metric: 7343-31), two voltage ratings (10V and 16V), two capacitances (47μF and 68μF), and a single DCL (0.1CV), TCB Series capacitors feature a ±20% capacitance tolerance, are available with two termination finishes (Sn/Pb and 100% tin), and are rated for operating temperatures spanning -55 to +105 degrees C.
TCB Series capacitors rated for 20–63V and 0.47–100μF are currently in development and, upon release, will introduce three new case sizes and a 0.05CV DCL option available on certain codes. The series is RoHS compliant and lead-free compatible, and lead time for the series is 12 weeks.
source: http://www.powerpulse.net/story.php?storyID=32803
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