Polyester capacitorsPolyester capacitors use a polyester dielectric and they are ideally suited to decoupling or bypass applications
Note: Connect a polyester 100nF capacitor close to each power supply/ground of each IC to reduce noise and improve circuit operation.
ToleranceThey are not suited to high precision as their tolerance is not too good ranging from ±10%, to ±20% depending on the type.
They come in many different shapes and sizes but one of the most common types is the orange drop:
Typical polyester Temperature CurveThe capacitor value will also change with temperature. Here's a typical graph of the change of capacitance with temperature:
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