image = |designers = |date = |vitamins = |materials = |transformations = |lifecycles = |parts = |techniques = |tools = |files = |suppliers = [[https://www.mouser.com/|Mouser]], [[https://www.digikey.com/|Digikey]] |git =

Parts Electric parts

=Introduction= A diode is a two-terminal electronic component that conducts current primarily in one direction (asymmetric conductance); it has low (ideally zero) resistance in one direction, and high (ideally infinite) resistance in the other. A diode vacuum tube or thermionic diode is a vacuum tube with two electrodes, a heated cathode and a plate, in which electrons can flow in only one direction, from cathode to plate. A semiconductor diode, the most commonly used type today, is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. Semiconductor diodes were the first semiconductor electronic devices. The discovery of asymmetric electrical conduction across the contact between a crystalline mineral and a metal was made by German physicist Ferdinand Braun in 1874. Today, most diodes are made of silicon, but other semiconducting materials such as gallium arsenide and germanium are also used.

=Challenges=

• package types
• package sizes
• capacity and rating

=Approaches=

=Development targets=

=References=

• Wikipedia: Diode