Find the right AEC-Q200 qualified Capacitor for 48V Boardnet Application.

1. Caps for 48V Boardnet Application
KEMET Webinar, August 2018

2. Agenda
• 48V landscape
• Component requirement
• Product range

3. Application
• Note : 48V and12V ( it’s not 36V +12V)
• DC/DC converter is bidirectional
3

4. Copyright © Infineon Technologies 2012. All rights reserved.
German OEM Topology Proposal
12V/48V Car Topology - What to Change
48V
- 12V MSA Starter - Li-Ion Battery or Super-Cap
- 12V 90Ah AGM Battery - 10kW Traction E-Motor
- Remove Generator 12V180A - 12kW Motor/Generator Inverter with
- Clutch for engine disconnect integrated 12V 200A DC/DC (eta 95%)
M/G
10kW
Source: German car manufacturer
12.10.2012
Transmission

5. 48V Boardnet
• Terminal 40 - Battery - “Plus”
• Terminal 41 - Battery - “Negativ”
Source: http://www.hochvoltkompetenz.de/details.html?content=42890&backlink=653&cHash=6140857fbb7d053d2899c86fb7a86d7e

6. Voltage level
• In addition a 70V/100msec transient
• 60V/60minutes

7. KEMET offerings

8. KEMET offerings

9. Metal composite Power inductor
• Metal composite Power inductor
• 22 x 23 x 13 mm
• -40℃ .. 155℃
• 48V rating
• 300KHz
• 30 Amp 10uH, 70 Amp 1uH

10. Dual mode EMI choke coil
• 42 x 33 x 30mm
• 30 Amp
• 1mH in Common mode
• 10uH in Differential mode
• Flat top surface easy access to Heat sink

11. KEMET offerings

12. Axial Electrolytic Capacitors
Product Range
Series PEG124 PEG126 PEG127 PEG130 PEG220 PEG225 PEG226
Diameter Length
10 - 20mm 20 -
46mm
16 - 20mm 29 -
46mm
10 - 13mm 20 -
37mm
20mm 29 - 46mm
16 - 20mm 26.5 -
42.5mm
16 - 20mm 26.5 -
42.5mm
16 - 20mm 26.5 -
42.5mm
Features &
Benefits
Capacitance Range
1 – 4,700 µF 1 – 470
µF
250 – 4,000 µF 33 – 1,300 µF 900 – 6,300 µF 250 – 4,700 µF 470 – 6,300 µF 250 – 4,700 µF
Rated Voltage
10 – 63 VDC 100 –
450 VDC
25 – 63 VDC 25 – 63 VDC 25 – 63 VDC 25 – 63 VDC 25 – 63 VDC 25 – 63 VDC
Operating
Temperature
-40 to +125°C -40 to
+105°C
-40 to +150°C -40 to +150°C -40 to +105°C -40 to +150°C
-40 to +125°C (-40 to
+150°C at derated
voltage)
-40 to +150°C
Radial Crown
option
X X X X

13. Aluminium Electrolytic
Axial Radial ( Crown solution)
Axial Radial ( Crown solution)

14. Gasket improvement
14
Older Design New Design
PEG12x PEG22x

15. Lytic use in automotive

16. Elc.kemet.com

17. AE with Pressfit

18. Leading the Change by simplifying the Single Component Application
Enter on Modular Solution and Lead the Offer by Availability in New Projects
Q3FY18
Press-fit connection
on Snap-In capacitors
size range.
ALF*
Q3FY19
Axial Press-fit Axial
SMD
horizontal
application
concept.
FEE*
Q4FY19
Axial Press-fit
crown using
vertical
application
concept.
FEH*
FY20
Lytic Press-fit
modular concept
solution
Assembly Press-fit
adjustable Heat sink
bank solutions.
MEH*
Press-Fit, SMD and MODULAR
ROADMAP for Non-Selective Soldering and Modular

19. Rectangular Electrolytic ALR & AMR
• Size – rectangular shape provides 27% more efficiency +
good CV technology
• Use of single component increases reliability
• Low profile when horizontal
• Incredible heat sinking capability – stackable form
• Stability across temperature – superior low temp impedence
• High Altitude capability – 80,000 feet
• Launch ALR & AMR Sep 2018

20. KEMET offerings

21. Ceramic platform market overview
• Still tight marketing
• 100V or in eventually 80V rated voltage
• there is NO double digit µF for the 48V available
capacitance
[µF]
Volt
[V]
Dielectric
Murata 4.7 80 X7R
TDK 4.7 100 X7S
KEMET 2.2 100 X7R
TY 2.2 100 X7R
Syfer 0.22 100 X7R
Vishay 0.1 100 X7R

22. KEMET offerings

23. Polymer capacitor
• Nominal 54V
• Polymer derating 80%for Vr > 10V
• Required rated voltage must be > 67,5V
• Offer 75V rated
• Requirement 48V is 70V/100msec
• Test 10uF/75V
• Major concern is a short due over voltage
• Ripple current capability

24. What about Polymer capacitor?
BDV = Break Down Voltage Test
10uF/75V

25. Rippe voltage and current

26. Ripple current capability at 200kHz@54V
• Consider maximum ambient temperature
• Component does not distinguish between T_rise & T_amb

27. Wrap up
• 48V is established
• Ceramic offering 2.2uF/100V
• NEW inductor offerings for automotive
• majority is lytic
• Axial crown solution
• Pressfir technologies
• Lifetime calculation
• Working on Polymer

28. Thank You!
Axel Schmidt
Field application Engineer
Cell +49 172 89 25 284
email: AxelSchmidt@kemet.com
Hermann-Köhl-Str. 2
86899 Landsberg am Lech
Germany
www.kemet.com