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 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. Histor ...

(JEITA). Prior to the merger, EIAJ created a number of electronics industry standards that have had some use outside Japan, including: *The

EIAJ connector The EIAJ connector type, more formally known as EIAJ RC-5320A, is a type of coaxial power connector or jack for small appliances. Features The entire series of connectors has a built-in retention feature. On types 1, 2, and 3 this involves a ...

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

TOSLINK TOSLINK (from ''Toshiba Link'') is a standardized optical fiber connector system. Also known generically as optical audio, its most common use is in consumer audio equipment (via a "digital optical" socket), where it carries a digital audio st ...

(EIAJ Optical, RC-5720C) optical S/PDIF audio connector. *The

EIAJ-1 EIAJ-1 was a standard for video tape recorders (VTRs) developed by the Electronic Industries Association of Japan with the cooperation and assistance of several Japanese electronics manufacturers in 1969. It was the first standardized format fo ...

videotape Videotape is magnetic tape used for storing video and usually sound in addition. Information stored can be in the form of either an analog or digital signal. Videotape is used in both video tape recorders (VTRs) and, more commonly, videocassett ...

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 NTSC-J is the informal designation for the analogue television standard used in Japan. The system is based on the US NTSC (NTSC-M) standard with minor differences. While NTSC-M is an official CCIR and FCCNational Television System Committee (1 ...

analog TV Analog television is the original television technology that uses analog signals to transmit video and audio. In an analog television broadcast, the brightness, colors and sound are represented by amplitude, phase and frequency of an analog s ...

system. It is often referred to simply as

EIAJ 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 me ...

, or sometimes as FM-FM audio.

Transistor nomenclature

The Japanese

technical standard A technical standard is an established norm or requirement for a repeatable technical task which is applied to a common and repeated use of rules, conditions, guidelines or characteristics for products or related processes and production methods, ...

JIS-C-7102 provides a method of developing part numbers for transistor devices. Larry D. Wolfgang and Charles L. Hutchinson (ed) ''The ARRL Handbook for Radio Amateurs 1991 Sixty-Eighth edition''ARRL, 1990 , page 35-15 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

diode A diode is a two-terminal electronic component that conducts current primarily in one direction (asymmetric conductance); it has low (ideally zero) resistance in one direction, and high (ideally infinite) resistance in the other. A diode ...

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

thyristor A thyristor () is a solid-state semiconductor device with four layers of alternating P- and N-type materials used for high-power applications. It acts exclusively as a bistable switch (or a latch), conducting when the gate receives a current ...

** F N-base

unijunction transistor A unijunction transistor (UJT) is a three-lead electronic semiconductor device with only one junction that acts exclusively as an electrically controlled switch. The UJT is not used as a linear amplifier. It is used in free-running oscillators, sy ...

** J P-channel

field effect transistor The field-effect transistor (FET) is a type of transistor that uses an electric field to control the flow of current in a semiconductor. FETs (JFETs or MOSFETs) are devices with three terminals: ''source'', ''gate'', and ''drain''. FETs control ...

** K N-channel field effect transistor ** M bidirectional triode thyristor *The numerals following indicate the order in which the application was received, starting at 11 * A suffix letter indicates improved characteristics

History

in 1948, Electronic Industries Association of Japan has first appeared in

Taito is a Japanese company that specializes in video games, toys, arcade cabinets and game centers, based in Shinjuku, Tokyo. The company was founded by Michael Kogan in 1953 as the importing vodka, vending machines and jukeboxes into Japan. It b ...

, Tokyo, Japan. in 2000, Electronic Industries Association of Japan became a Pending merger with

JEIDA The (Formerly ) was an industry research, development, and standards body for electronics in Japan. It was merged with EIAJ to form JEITA on November 1, 2000. JEIDA was similar to SEMATECH of the US, ECMA of Europe. JEIDA developed a number o ...

and was Reorganized into

JEITA 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. Histor ...

References

External links

Information on EIAJ-1

{{DEFAULTSORT:Electronic Industries Association Of Japan Electronics industry in Japan Technology trade associations Organizations established in 1948 Organizations disestablished in 2000 1948 establishments in Japan 2000 disestablishments in Japan Defunct organizations based in Japan