Calculator for Zener Diode Series Resistor
Zener Diodes require a minimum current to flow through them in order to allow them to actually regulate the voltage. But at the same time they can only sustain a maximum amount of current flowing through them before they essentially go up in flames.
The goal of this calculator is to find a suitable series resistor for a given Zener Diode and load current.
It will also output the worst case scenario values for the Zener's power dissipation when the load has suddenly been disconnected and the entire current flows through the diode.