KEMET Flex Crack Mitigation

For many years, customers have complained about flex cracks and have asked what KEMET was going to do to fix the issue. Following years of research and development KEMET are proud to bring to the market:

Technology	Target Values	Example
Floating Electrode FE CAP	Low to Mid Capacitance	Floating Electrode means 2 capacitors in Series
Floating Electrode + Flexible Termination FF CAP	Low to Mid Capacitance
Open Mode	Mid Capacitance	Open Mode creates a safe margin area
Flexible Termination* FT CAP *New – Up to 2225 case size!	High Capacitance	Flexible Termination moves the crack away from ceramic body

 
1st Solution: Floating Electrode

• Originally born out of the high-voltage ‘cascading electrode’ solution
• Creates 2 separate capacitors in series, within a given case size
• Any flex crack will not lead to creation of a short-circuit path

2nd Solution: Floating Electrode + Flexible Termination

• Combination of 1st and last solution

3rd Solution: Open Mode

• By compressing the active area, we create a safety zone in the margin areas of both ends of the device
• Any board flex crack that occurs can only cross electrodes of like polarity
• Very popular in the industry

4th Solution: Flexible Termination

• Can be applied to any MLCC
• Especially suited for HICV
• 2 Part Termination: Copper/Glass – Silver Epoxy

Flex Solutions

By continuing educated board layout with the latest MLCC technology, the effects of board flex can be mitigated.