Mod Note:
This thread was split from -- Zener diode problem.
This thread was split from -- Zener diode problem.
Zener diode exercise results. Not for a 1N746 but it gives you an idea of how much the voltage cab nary at different current. Your same basic circuit of a resistor and a Zener, varying the resistor values and noting diode voltage, resistor voltage, current and effective diode resistance. Using Excel we can graph the results. This was a 4.3 Volt 250 mW Zener rated at 8 mA and at about 8 mA it has the 4.3 Volts across it.
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