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Electronic Industries Association of Japan

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Japanese electronics trade organization
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Electronic Industries Association of Japan
Company typeIncentiveKK
Industrytrade association
Founded1948
Japan
Defunct2000 (asJEITA)
FatePending merger withJEIDA, Reorganized intoJEITA
SuccessorJEITA
HeadquartersJapan
Number of locations
Taito, Tokyo, Japan
Area served
Chiyoda, Tokyo, Japan

Founded in 1948, theElectronic Industries Association of Japan (EIAJ) was one of two Japanese electronics trade organizations that were merged into theJapan Electronics and Information Technology Industries Association (JEITA).

Prior to the merger, EIAJ created a number ofelectronics industry standards that have had some use outside Japan, including:

  • TheEIAJ connectors used for DC power (EIAJ RC-5320A, EIAJ RC-5321, and EIAJ RC-5322
  • TheD-Terminal connector (RC-5237), used instead of three RCA plugs for component video connections.
  • TheTOSLINK (EIAJ Optical, RC-5720C) optical S/PDIF audio connector.
  • TheEIAJ-1videotape format, the first standardized format for industrial/non-broadcast video tape recording, released in 1969.

Another standard is the multi-channel TV sound system used with theNTSC-Janalog TV system. It is often referred to simply asEIAJ, or sometimes as FM-FM audio.

Transistor nomenclature

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The Japanesetechnical standard JIS-C-7102 provides a method of developing part numbers for transistor devices.[1] The part number has up to five fields, for example in the number 2SC82DA:

  • The first digit "2" indicates this is a 3 lead device ( adiode would have a prefix numeral 1)
  • The letters "S" is common for all EIAJ registered semiconductors
  • The following letter designates polarity and general application of the device. For transistors:
  • The numerals following indicate the order in which the application was received, starting at 11
  • A suffix letter indicates improved characteristics

History

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in 1948, Electronic Industries Association of Japan has first appeared inTaito, Tokyo, Japan. In 2000, Electronic Industries Association of Japan became a Pending merger withJEIDA and was Reorganized intoJEITA.

References

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  1. ^ Larry D. Wolfgang and Charles L. Hutchinson (ed)The ARRL Handbook for Radio Amateurs 1991 Sixty-Eighth editionARRL, 1990ISBN 0-87259-168-9, page 35-15

External links

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