Advanced Test Methods for Up-screened Tantalum Capacitors

Advanced Test Methods for Up-screened Tantalum Capacitors
Written By: Brian Brunette

Abstract:
Commercial-off-the-shelf capacitors are designed and tested for non-critical applications. AVX has developed a range of “COTS-Plus” tantalum capacitors with testing and reliability grading done in accordance with MIL-PRF-55365 and AVX proprietary methods to provide improved reliability on commercial ratings by removing weaker components within the populations. This paper will describe the criteria for selecting ratings appropriate for up-screening and describe the various tests that are standard and optional to demonstrate the improved reliability that results from these screening methods. Standard and “Space Level” options are described and compared to illustrate the scope of the COTS-Plus system.
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