Electronic Industries Association of Japan


Founded in 1948, the Electronic Industries Association of Japan was one of two Japanese electronics trade organizations that were merged into the Japan Electronics and Information Technology Industries Association.
Prior to the merger, EIAJ created a number of electronics industry standards that have had some use outside Japan, including:
Another standard is the multi-channel TV sound system used with the NTSC-J analog TV system. It is often referred to simply as EIAJ, or sometimes as FM-FM audio.

Transistor nomenclature

The Japanese technical standard JIS-C-7102 provides a method of developing part numbers for transistor devices. The part number has up to five fields, for example in the number 2SC82DA: