Example SN: JAE2445044T
JAE is the code for the manufacturing location
24 is the year code (subtract 4 from this value, meaning it was manufactured in 2020)
45 is the week code (meaning it was manufactured in the 45th week of the calendar year, which would be early November)
The final 4 digits are the part ID. These are unique values assigned to each device produced in that facility in that week of that year.