Semiconductors
N-channel MOSFET
See how gate voltage creates a conductive channel and controls drain current between source and drain.
Open simulator →Interactive engineering lab
Component library
Built for students, teachers and the curious. Open a component, change its real electrical parameters, and watch the 3D model and characteristic curves respond as you go.
Semiconductors
P–N junction diode
See how the depletion region enables forward current, blocks reverse current and changes during breakdown.
Open simulator →Semiconductors
Zener diode
See how a Zener diode is built to survive reverse breakdown on purpose — once the knee is reached, the voltage across it barely moves even as the current swings.
Open simulator →Semiconductors
LED
Switch between real LED colors and watch why the current, not the voltage, is what you actually control — and why a bare LED on a supply is always one step from burning out.
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