Electronic Industries Association of Japan
Encyclopedia
Founded in 1948, the Electronic Industries Association of Japan (EIAJ) was one of two Japanese electronics trade organizations that were merged into the Japan Electronics and Information Technology Industries Association
(JEITA).
Prior to the merger, EIAJ created a number of electronics industry standards that have had some use outside of 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.
Japan Electronics and Information Technology Industries Association
The is a Japanese trade organization for the electronics and IT industries. It was formed in 2000 from two earlier organizations, the Electronic Industries Association of Japan and the Japan Electronic Industries Development Association.-See also:...
(JEITA).
Prior to the merger, EIAJ created a number of electronics industry standards that have had some use outside of Japan, including:
- The EIAJ connectorEIAJ connectorThe EIAJ connector, more formally known as EIAJ RC-5320A, is a coaxial power connector or jack for small appliances. It is recognised by many consumers by the "yellow tip" at the end of the jack. It is also notable that the entire series of connectors has a built-in retention feature...
s used for DC power (EIAJ RC-5320A, EIAJ RC-5321, and EIAJ RC-5322 - The D-Terminal connector (RC-5237), used instead of three RCA plugs for component video connections.
- The TOSLINKTOSLINKTOSLINK is a standardized optical fiber connection system. Also known generically as an "optical audio cable," its most common use is in consumer audio equipment , where it carries a digital audio stream from components such as MiniDisc, CD and DVD players, DAT recorders, computers, and modern...
(EIAJ Optical, RC-5720C) optical S/PDIF audio connector. - The EIAJ-1EIAJ-1EIAJ-1, developed by the Electronic Industries Association of Japan in 1969, was the first standardized format for industrial/non-broadcast videotape recorders...
videotapeVideotapeA videotape is a recording of images and sounds on to magnetic tape as opposed to film stock or random access digital media. Videotapes are also used for storing scientific or medical data, such as the data produced by an electrocardiogram...
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 the NTSC-J analog TV system. It is often referred to simply as EIAJ
EIAJ MTS
Bilingual and stereo sound television programs started being broadcast in Japan in October 1978 using a system developed by NHK Technical Research Labs. This system was modified and standardized by the EIAJ in January 1979....
, 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:- The first digit "2" indicates this is a 3 lead device ( a diodeDiodeIn electronics, a diode is a type of two-terminal electronic component with a nonlinear current–voltage characteristic. A semiconductor diode, the most common type today, is a crystalline piece of semiconductor material connected to two electrical terminals...
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:
- A PNP high frequency
- B PNP low frequency
- C NPN high frequency
- D NPN low frequency
- E P-gate thyristorThyristorA thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material. They act as bistable switches, conducting when their gate receives a current trigger, and continue to conduct while they are forward biased .Some sources define silicon controlled rectifiers and...
- F N-base unijunction transistorUnijunction transistorA unijunction transistor is an electronic semiconductor device that has only one junction. The UJT has three terminals: an emitter and two bases . The base is formed by lightly doped n-type bar of silicon. Two ohmic contacts B1 and B2 are attached at its ends. The emitter is of p-type and it is...
- J P-channel field effect transistor
- K N-channel field effect transistor
- M bidrectional triode thyristor
- The numerals following indicate the order in which the application was received, starting at 11
- A suffix letter indicates improved characteristics