Unlike most diodes, zener diodes are used in a way that they conduct current while reverse biased. Each zener diode has a particular voltage that they are rated to start conducting at while reverse biased, at which point a series resistor needs to limit current. Therefore, that voltage will be held across the zener diode and parallel components/circuits.
Diagram coming soon!
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- Information on this site is not guaranteed to be accurate. Always consult the manufacturer info/datasheet of parts you use. Research the proper safety precautions for everything you do.