However, the following additional information may prove helpful in understanding the root cause of this
component's failure:
Virgin components (200-piece sample recommended from same lot number ) that will allow KEMET to
perform reliability tests on components prior to customer application .
IR Reflow solder profile, or (peak) temperature/time conditions/profile of any other mounting process,
such as wave, vapor phase, etc.
Circuit information such as the schematics, applied voltage, current, ripple current and failure point
during testing.
Oscilloscope traces at each of the failure locations in the circuit to understand the conditions the
capacitors were exposed to. Focus of the trace would be on over voltage (surge), reverse bias and
ripple current during power up, power off and steady state (under load and unload conditions).
Please return any additional components, process, or application information to adolfodiaz@kemet.com
and c.c. noraolazaran@kemet.com
Based on a complete review of batch process records and tollgate performance, KEMET is unable to
identify any non-conformance of this part as warranted. The product shipped met all KEMET catalogue
requirements and specifications as ordered.
Corrective Action : Corrective Action :
KEMET's analysis of the returned component did not reveal a manufacturing defect. The internal
construction was found to be typical with no abnormalities found . The reported failure description
indicates that the failure was the result of electrical stress on the dielectric . Corrective action was not
possible at this time.
Prevent Recurrence : Prevent Recurrence :
KEMET is committed to working with Sanmina-SCI Corp to resolve this concern to your satisfaction. If we
can be of any further assistance or if you have any questions concerning the content of this report , please
contact us via phone, fax, or e-mail (listed on page 1).
This report is Business Confidential between KEMET Electronics Corporation and the company named This report is Business Confidential between KEMET Electronics Corporation and the company named
herein.