Zener Diode Calculator

Enter value and click on calculate. Result will be displayed.

Maximum Input Voltage:
Volts
Minimum Input Voltage:
Volts
Output Voltage:
Volts
Load Current:
MAmperes
Resistance:
Ohms
Watts
Zener:
Volts
Watts

What is a Zener Diode Calculator?
A Zener Diode Calculator is a tool used to determine the appropriate resistor value, current, and power dissipation in a Zener diode voltage regulator circuit. It simplifies circuit design by ensuring the Zener diode operates within safe limits.

Why Use It?
Prevents Zener diode damage by selecting the right resistor.
Ensures stable voltage regulation in circuits.
Helps design efficient power supplies and clamping circuits.
How Does It Work?
The calculator uses formulas based on Ohm's Law and Zener diode characteristics.

Input Required:

Supply Voltage (V_in)
Zener Voltage (V_z)
Load Current (I_L)
Zener Current (I_zmin, I_zmax)
Key Calculation:

Series Resistor (R_s):

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Power Dissipation:

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When to Use It?
Voltage regulation in circuits.
Protection against overvoltage in sensitive components.
Signal clipping and waveform shaping in electronic circuits.