On the EMITTER part - LTE-302-M we found color dots

[annadoraics]

hi, against DigiKey order# (Removed for safety) we have received EMITTER part - LTE-302-M, but we observed on this part we found one color dots, So please confirm is there any technical details/specification regarding the color dots?

is there any technical specification on this color dot, which is marked on the Emitter?

Note : on 5 pocket EMITTER marked with RED COLOR & 1 packet EMITTER marked with Green color.

[nick_13812]

Hello Annadoraics and welcome to the DigiKey TechForum.

Are you able to provide a picture of the parts you received with color dots on them?

[Kristof_2649]

DigiKey’s picture of these parts shows a red mark on the top of the part, seems like it’s permanent marker.

I’m guessing when they test these after manufacturing the mark them to indicate Average Axis Intensity Bins.