This document summarizes an upcoming webinar from KEMET on capacitor selection. It lists various 10 microfarad capacitor options from KEMET in different form factors and technologies. It then discusses key differences between the options, including how capacitance and ESR vary with size, reliability considerations, thermal performance, and leakage current characteristics. The webinar will help designers understand tradeoffs and optimize their design by selecting the right capacitor for their needs.

1. Webinar „the 10µF Story“

2. EMEA Webinars 2017/2018
• ESD Ceramic Capacitor (English) December 11, 2017
• Test & Design Considerations – Class 1 & Class 2 MLCC December 18,2017
• ESA qualifizierte Polymer Kondensatoren January 12, 2017
(2 Webinars - German & English)
• HV Kondensatoren in Automotive & Industrie January 19, 2017
Anwendungen (German)
• Automotive Polymer HV Extensions up to 75V January 29, 2017
(2 Webinars - German & English)
go.kemet.com/emeawebex
ANNOUNCEMENT
KEMET EMEA Webinars – Year 2017/2018

3. „The 10 µF story“
A Journey
There are various 10µF capacitors of different size, voltage and
technologies available
What are the selection differences and criteria ? 3

5. Candidates

6. Possible Alternatives
• C0402C106K9PAC -1005
• C0603C106K9PAC -1608
• C0805C106K4PAC -2012
• C0805C106K8RAC -2012
• C1210C106K5RAC - 3225
• C2220C106K5RAC -5650
• C1210C106K5R2C -3226 double Stack
• C2220C106K5R1C -5650 single Stack
• T520A106M010ATE080 -3216-18
• T520B106M010ATE100 -3528-21
• T521V106M035ATE120 -7343-20
• T521X106M075ATE050 -7343-43
• A700V106M016ATE060 -7343-20

7. Capacitance 0402 versus 2220

8. 0402 versus 2220 @ 5V DC-Bias
• Capacitance for 0402 drops by ~80%

9. Net capacitance in 5V DC-Bias

10. Polymer MLCC small case
0402 Polymer
Capacitance 1,6µF 10.2µF
Footprint/mm2 1,0 x 0,5 3,2 x 1,6

11. http://ec.kemet.com
13

12. Design tools
14

13. Different cases in MLCC - Z, ESR
• SRF higher for smaller cases - lower ESL
• Impedance is similar

14. ESL
• Increase with bigger cases size
• Shift resonance frequency to LOWER values

15. S-Parameter

16. Different cases in MLCC -Ripple Current
0402 2220
Current 10,7A 14,8A

17. Power calculations
• Nickel Elecrodes act as cooling plate
• High thermal conductivity
• Smaller case - more layers
• Trade off between convections and thermal conductivityCooling plate

18. Ripple current 10x1uF vs 1x10uF
• 10x 1uF increase current capability
10x 1µF 1x 10µF
10A 44A?

19. dielectric physics
t

20. Reliability
• Smaller case size - thinner dielectric
• Reliability decrease with smaller case size

21. 1x10uF versus 10x 1uF
• SRF and ESR shift

22. Single and double stack
• KEMET Power Solutions = KPS
• C2220C106K5R1C -5650 single Stack
• C2220C106K5R2C -5650 double Stack

23. Single versus double stack

24. compare standard versus KPS
• Mechanical robust against crack

25. MLCC J-Lead
Output Noise
• Piezo create noise
• Leadframe eliminate Noise
Why single stack

26. Battery powered application
• Insulation resistance
• DCL(25°C) = U/R3 = 5V/100MΩ = 50nA
• DCL(45°C) = U/R3 = 5V/15MΩ = 330nA
25°C 45°C

27. Battery powered application Polymer
• Old rule DCL = 0,1 C[µF]*U[V]
• Insulation resistance significant lower than catalog values
• Higher rated voltage - means thicker dielectric - lower DCL
• DDCL reduced at higher temperature
25°C 45°C
1MΩ 1,6MΩ

28. Sum up
• Design can be optimized by using Tools
• MLCC smaller case size
• thinner dielectric
• loose more cap on DC-Bias thinner dielectric
• Polymer
• no capacitance loss due DC-Bias
• can replace several HiCV MLCC
• Single Stack noise reduction
• Double stack - reduce footprint
• Leakage current trade between C, Ur, T

29. Thank You!
Axel Schmidt
Senior Field Application Engineer
+49 172 89 25 284
AxelSchmidt@kemet.com
KEMET Electronics GmbH
Rudolf-Diesel-Straße 21
86899 Landsberg
08191 3350-0
www.kemet.com