{{wiki=Diode#Semiconductor_diodes}}

\Image[https://upload.wikimedia.org/wikipedia/commons/2/2a/Diode_current_wiki.png]
{title=<I-V curve> of a <diode>}
{description=This image shows well how the diode is only an approximation of the ideal one way device. Notably, there is this $V_d$ non-ideal voltage drop across the device, which can be modelled as constant. It is however an exponential in fact.}

\Video[https://www.youtube.com/watch?v=Fwj_d3uO5g8]
{title=<Diodes> Explained by The Engineering Mindset (2020)}
{description=
Good video:
* https://youtu.be/Fwj_d3uO5g8?t=153 how it works
* https://youtu.be/Fwj_d3uO5g8?t=514 applications:
  * protection against accidental battery inversion
  * <rectifiers>, notably mentions a <diode bridge>
}


 Semiconductor diode