New KEMET’s Miniaturized EMI-Suppression and DC-Link Power Box Unique Designs for Harsh Environment in Energy, Industrial and Automotive Application
Reference - https://www.techonline.com/tech-papers/new-kemets-miniaturized-emi-suppression-and-dc-link-power-box-unique-designs-for-harsh-environment-in-energy-industrial-and-automotive-application/?utm_source=newsletter&utm_campaign=link&utm_medium=TechOnlinePapers-20241031&oly_enc_id=6122E7617490J8A
by YAGEO Group
Authored by Hristina Kostadinova Boshkova
White Paper
Electronic component miniaturization and operation in harsh environmental conditions
are growing trends in applications, such as on-board chargers, capacitive power
supplies, including connection in series with the mains, and solar inverters.
Current EMI X2 class suppression and DC-link power box film
capacitors need capability improvement to meet these requirements. Very high capacitance and
dissipation factor stability are required during operational life in severe ambient conditions such
as high temperature and relative humidity, while still meeting European and other Electrical
Norms, the criteria in the standard for automotive application (AEC-Q200)
and the international safety requirement (UL). The moisture absorbed into the capacitor leads
to corrosion of the electrode and accelerated degradation of the capacitor by increasing of
capacitance loss. THB is a standard test for accelerated stress
testing of corrosion and other moisture-driven mechanisms for degradation. In this paper, we
have studied the characteristics and performance under high temperature and humidity
conditions of new capacitor designs in a miniaturized version of first to the market metallized
EMI X2 class suppression and DC-link power box film capacitors. Three advanced KEMET
series of metallized film capacitors have been stressed under an applied rated AC or DC voltage
at 85°C and 85 %R.H. and the drop of capacitance and change of the dissipation factor have
been monitored with the time for 500 and 1000 hours, respectively
New KEMET’s Miniaturized EMI-Suppression and DC-Link Power Box Unique Designs for Harsh Environment in Energy, Industrial and Automotive Application
Reference - https://www.techonline.com/tech-papers/new-kemets-miniaturized-emi-suppression-and-dc-link-power-box-unique-designs-for-harsh-environment-in-energy-industrial-and-automotive-application/?utm_source=newsletter&utm_campaign=link&utm_medium=TechOnlinePapers-20241031&oly_enc_id=6122E7617490J8A
by YAGEO Group
Authored by Hristina Kostadinova Boshkova
White Paper
Electronic component miniaturization and operation in harsh environmental conditions
are growing trends in applications, such as on-board chargers, capacitive power
supplies, including connection in series with the mains, and solar inverters.
Current EMI X2 class suppression and DC-link power box film
capacitors need capability improvement to meet these requirements. Very high capacitance and
dissipation factor stability are required during operational life in severe ambient conditions such
as high temperature and relative humidity, while still meeting European and other Electrical
Norms, the criteria in the standard for automotive application (AEC-Q200)
and the international safety requirement (UL). The moisture absorbed into the capacitor leads
to corrosion of the electrode and accelerated degradation of the capacitor by increasing of
capacitance loss. THB is a standard test for accelerated stress
testing of corrosion and other moisture-driven mechanisms for degradation. In this paper, we
have studied the characteristics and performance under high temperature and humidity
conditions of new capacitor designs in a miniaturized version of first to the market metallized
EMI X2 class suppression and DC-link power box film capacitors. Three advanced KEMET
series of metallized film capacitors have been stressed under an applied rated AC or DC voltage
at 85°C and 85 %R.H. and the drop of capacitance and change of the dissipation factor have
been monitored with the time for 500 and 1000 hours, respectively