Anti-Vibration Capacitors for Electric Vehicles
The use of Electric Vehicles is growing rapidly. A direct consequence is that many more electronic components are needed, for example in the ECUs.
In the ECUs, capacitors are used to stabilize the voltage of a power circuit and eliminate electronic noise. Vibrations have an important influence on the reliability of the capacitors. To increase reliability, Nippon Chemi-Con has developed capacitors with a vibration resistant structure.
Two main features of Anti Vibration Capacitors
- Cradle supporting capacitor body
The cradle supports the body for less motion.
- Reliable soldering properties
By specifying copper land sizes to cover all of the dummy terminals and real terminals, the cradle can be fixed onto the pcb by soldering. Then, the cradle doe not break against the terminals.
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Conventional Construction |
Anti-vibration construction |
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Vibration Test Specs
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High frequency vibration |
General vibration test for AI-caps |
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Vibration frequency Range |
10 ?2000Hz |
10 ?55Hz |
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Amplitude |
5mm p-p max |
1.5mm or 10G, whichever smaller |
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Acceleration |
30G max. |
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Sweep cycle |
10 ?2000?10Hz, 20 minutes |
10 ?55?10Hz, 1 minute |
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Sweep method |
Exponential |
Exponential or constant |
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Test duration |
2 hours per each of XYZ (total 6 hours) |
2 hours per each of XYZ (total 6 hours) |
For more information, please contact Nijkerk Electronics.
