Diode I-V Curve Simulator

Simulate diode current using the Shockley equation

Voltage V

Is (nA)

n factor

Temp C

Shockley Diode Equation

Current	I = Is(e^(V/(nVt)) - 1)
Thermal voltage	Vt = kT / q
Temperature	T in kelvin

Practical Notes

The model is simplified and does not include series resistance or breakdown behavior.
Small voltage changes can cause large current changes in forward bias.
Real diode curves vary by diode type and temperature.
Use real datasheets for final circuit design.

Frequently Asked Questions

What is a diode I-V curve?▼

A diode I-V curve shows how diode current changes with applied voltage.

What is the Shockley diode equation?▼

The Shockley equation is I = Is(e^(V/(nVt)) - 1), where Is is saturation current, n is ideality factor, and Vt is thermal voltage.

Why does current rise sharply?▼

In forward bias, diode current grows exponentially with voltage.

Does temperature matter?▼

Yes. Temperature changes thermal voltage and affects diode current behavior.

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