CHANGE REQUEST	

Request identity number:	
C00272	

Type of request:	
Technical change	

Request status level:	
For evaluation	

Proposal:	
Proposal to correct graphical symbol position and direction of arrows (light emitting) 

Reason:	This CR introduce new graphical symbol for LED which replace old S00642. Also this CR modify application note A00042 for light direction presented by arrows. Proposed new symbol is presented with variant A position and direction of arrows present light from LED.

During the preparation of this proposal MT 60617 was consulted

Requested by:	
Hiroaki Ikeda
ikeda@faculty.chiba-u.jp
JP	

SYMBOL	

Symbol identity number:	
S01919	
Status:	
Proposed	

Drawing:		

Earlier published in:	
.	
IEC 60617-5 (ed.2.0) 05-03-02 	

Name:	
EN	
Light emitting diode (LED), general symbol	

Keywords:	
EN	
diodes, LED, photo-emissive devices, semiconductors	
Application class:		Circuit diagrams	
Function class:		E Providing radiant or thermal energy 	
Shape class		Arrows, Equilateral triangles, Lines	
Applied in:		S00380, S00691, S00692	
Applies:		S00127, S00641	
Application note:		A00042	
Replaces:		S00641	

APPLICATION NOTE	

Note identity number:	
A00042	
Status:	
Standard 	
Note type:	Rule			

Note (EN):

"If source and target are shown, the arrows shall point from source to target.

If there is a target but no specific source shown, the arrows shall point downwards and to the right.

If there is no specific target shown, the arrows shall point upwards and to the right.

These rules are applied for the original combination of the symbol in the 60617 database which means "Variant A" described in ISO 81714-1. For the other variants, the arrows rotate together with the other elements to keep the position in the whole combination of "Variant A"

Applies to: S00127, S00128, S00129, S00901, S01919, S01920