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Zener Diode (IEC)

Schematic symbol

Diode that conducts backwards at a specific voltage, its Zener voltage (e.g. 5.1 V), and holds that voltage steady. Connect it in reverse, with the cathode (the bar) toward positive and a series resistor to limit the current. Used as a simple voltage reference or to protect inputs from over-voltage. Forward, it works like a normal diode. Learn more about diodes

Details

Reference Character
D
Default Value
—
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