diode

composant électronique

AI overview

A diode is an electronic component made from semiconductor material that allows electric current to flow in one direction while blocking it in the other. Diodes are used in many applications, such as converting alternating current to direct current in power supplies and protecting circuits from damage caused by reversed current flow.

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Key facts

Electronic component.name: Thermionic diode
Electronic component.image: 2-50A 2 (2).JPG
Electronic component.caption: A high power vacuum tube diode used in radio equipment as a rectifier
Electronic component.type: Active
Electronic component.inventor: John Ambrose Fleming
Electronic component.invention_Year: 1904
Electronic component.pins: Plate and cathode
Electronic component.symbol: 100px
Electronic component.image_size: 225px
Electronic component.working_principle: Thermionic emission
Electronic component.symbol_caption: The symbol for an indirectly heated vacuum tube diode. From top to bottom, the element names are: plate, cathode, and heater.

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Wikidata facts

Subclass of: passive electronic component
Image: Diode-closeup.jpg
Has use: electrical resistance

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Commons category: Diodes
topic's main category: Category:Diodes
described by source: Armenian Soviet Encyclopedia
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
maintained by WikiProject: WikiProject Physics

Sources (4)

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Article · Français

La diode (du grec di deux, double ; odos voie, chemin) est un composant électronique. C'est un dipôle non linéaire et polarisé (ou non symétrique). Le sens de branchement d'une diode détermine le fonctionnement du circuit électronique dans lequel elle est placée. Sans précision ce mot désigne un dipôle qui ne laisse passer le courant électrique que dans un sens. Ce dipôle est appelé diode de redressement lorsqu'il est utilisé pour réaliser les redresseurs qui permettent de transformer le courant alternatif en courant continu.

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