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​​​​​​​Customer Change Notification​​

Tantalum Polymer Surface Mount Black Epoxy Conversion Final Stage -​ ICT Impacted Series

October 24, 2014
ID Number (DDMMYYYY): PCN-24102014-CMC
Affected Products This PCN impacts all KEMET Tantalum Surface Mount (SMD) Polymer Series included in Table 1 and produced in ICT, USA that were not covered in previous customer notifications:
  • PCN-05082013-CMC – Tantalum Polymer SMD Black Epoxy Conversion
  • PCN-14082014-CMC – T5xxH Tantalum SMD Series – Black Encapsulation Material Conversion
T520E Polymer Tantalum
T521 High Voltage Polymer Tantalum
T545 High Energy Polymer Tantalum
T525 High Temperature Polymer Tantalum (125°C​)
T530 High Capacitance Polymer Tantalum

Table 1: Affected Polymer SMD Series with Black Epoxy Encapsulation Conversion
Change KEMET has evaluated and qualified the new black epoxy material setting and will start the conversion from yellow to black for the remaining part numbers not covered in previous customer change notifications. The qualified black epoxy material has been in use on KEMET’s polymer products shipped from the Suzhou, China location since 2013.
Justification & Benefits This conversion allows KEMET to be consistent and to standardize with the epoxy material internally and the capacitor industry.
Effective Date & Identification The black epoxy material has been qualified. Products with yellow epoxy will continue to be shipped until customer approval is received for this PCN or up to February 2015. Effective PWC 506, all products will be produced using black epoxy encapsulation. Yellow or black encapsulated products may be shipped until all yellow encapsulated inventory is depleted. Once yellow inventory is depleted, all affected products included in Table 1 will be shipped with black epoxy material.
ContactCristina Mota Caetano
Tantalum Technical Product Marketing Director
KEMET Electronics Corporation (
Tel: +351 96 330 84 59