What is the “Date Source Code” used on potentiometers?
The Source Code and Date Code are under the framework of the Electronic Industries Association which is a non-profit organization representing manufacturers of electronic products. The EIA Source Code is a numeric symbol, assigned and registered by EIA Headquarters, which may be stamped or marked on any or all products to identify the production source or vender assuming product responsibility. The source code has been published by the EIA since 1924. After 20 years if a Source Code number is not used by a company or if the company goes out of business it can be assigned to a new manufacturer. The EIA has developed and issued Standard EIA-476-A on Source and Date Code Marking. The Standard outlines requirements for source and date code marking on component manufacturer identification numbers and their sequence on the component to be marked, along with the lot date code. The EIA Engineering Department operates in a comprehensive standardization program as evidenced by over 1,000 standar
