what is the meaning of "79KG4" and "AOTV" on the frontside of the package?
what is the meaning of "M44" and F30" on the backside?
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"LM239AE" is the device code
"79K is the date and assembly site code in YMS format (2017 Year, 9th Month , Malacca assembly Site )
The "G4" with the underline is the J-STD-609 e-cat "Green status" code :
The "A0TV" is the lot trace code.
The bottom stamps are tooling marks by assembly site. Meanings depend on the individual assembly site.