Does anyone know how to test capacitors for different dielectric types?
I am seeing a massive drop in capacitance of one particular component in a circuit board. The previous boards worked fine but a new batch are problematic.
The capacitor in question takes about half an hour to drop by 50%, which is making me think of a temperature related type problem, hence dielectric. That is a partially loaded scenario using an LCR meter with a dc bias enabled.
Can anyone advice me how to determine the dielectric?