Q.
Flex Crack Countermeasures (6): How can I detect a flex crack?
- Capacitors >
- Multilayer Ceramic Chip Capacitors
A.
A flex crack is most frequently detected by electrical measurement as a decrease in insulation resistance. The MLCCs IR (Insulation Resistance) will decrease because the crack creates a weak point in the dielectric. Decreases in IR are usually detected by increases in leakage current.
A loss of capacitance or an increase in dissipation factor are also electrical indicators that a crack has occurred.
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