LED

What is an LED?

A light-emitting diode (LED) is an electrical component that emits light when it is powered. As a diode, it permits a current to flow in only one direction, so it must be wired correctly to function.

LEDs are based on a P-layer and N-layer junction, which permits the exchange and recombination of minority electrons and majority charge carriers. The resulting energy is then released in the form of photons, which is the source of the LED’s light.

The colour of an LED’s light is determined by the material used in the semiconducting element. The two primary materials used in LEDs are aluminium gallium indium phosphide alloys and indium gallium nitride alloys. The former is used for red, orange, and yellow light, while the latter is used for green, blue, and white light.

What is the Schematic Symbol for LED?

An LED circuit symbol is a graphical representation of the device that makes identification of its type and orientation easier for electricians, as they do not need to perform physical inspections of the circuit.

The LED electrical symbol is depicted as a triangle pointing in the direction of a short line that is perpendicular to the current's path (standard for all diode symbols) with the addition of two small arrows pointing upwards away from the triangle, denoting the emission of light.

Adding LED Symbols is Made Easier With Capital X Panel Designer!

Skip the design process with Capital X Panel Designer and add new LED symbols to your drawing quickly and easily! This electrical CAD software comes with a library of pre-made LED electrical symbols that you can simply drag and drop into your schematic layout, significantly boosting your production speed.

Learn more about how to create custom electrical symbols.