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shottky, zener, led

Definition

A diode is a two-terminal electronic component that conducts primarily in one direction.

Diode
Symbol #####################################################################################################################################################################################
Properties passive
Equations uD=uTln(iDIS+1)u_D = u_T \cdot \ln \left(\frac{i_D}{I_S} + 1 \right)
iD=IS(exp(uDUT)1)i_D = I_S \cdot \left( \exp \left(\frac{u_D}{U_T}\right) -1 \right)

Shottky Diode

A Schottky diode has a low forward voltage and allows very fast switching.

I=IS(eVDnVT1)I=I_\mathrm{S} \left( e^\frac{V_\text{D}}{n V_\text{T}} - 1 \right)

Zener Diode

A Zener Diode does not only conduct in the forward direction but also allows the current to flow in the reverse direction, when the so-called “Zener voltage” is reached.

Light Emitting Diode (LED)

The wavelength of the diode depends on the energy band gap in the semiconductor.