A zener diode is a type of diode that, when the current reaches the zener voltage, allows it to flow both forward and backward. It has a PN junction diode that is heavily doped. Even after a substantial change in the current flow, the diodes don’t change. The zener diode is a vital component of electrical circuits and is found in many different types of electrical devices.

Zener diode resistor calculator usedÂ to calculateÂ the resistance power and zener power by entering the values for load current, input, and output voltage.

**Formula:**

**Load Voltage:**

**V _{L} = V_{Z}**

**Value of Resistor:**

**R = [(V _{IN (MIN)}â€“ V_{OUT}) / (I_{L }+ 10)] x 1000**

**Zener Power:**

**Z _{P} = (V_{IN (MAX)} â€“ V_{OUT}) / R) x V_{OUT}**

**Resistance Power:**

**R _{P} = (V_{IN (Max)} â€“ V_{OUT}) ^{2ÂÂ} / R**

Where,

I_{L} = Load Current

R = Value of Resistor

Z_{P} = Power of Zener Diode

R_{P }= Power of Resistor

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