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 The electronics industry is the industry (economics), industry that produces electronic devices. It emerged in the 20th century and is today one of the largest global industries. Contemporary society uses a vast array of electronic devices that ar ...

standards that have had some use outside Japan, including: *The

EIAJ connector The Electronic Industries Association of Japan, EIAJ connector type, more formally known as Electronic Industries Association of Japan, EIAJ RC-5320A, is a type of coaxial power connector or Jack (connector), jack for small appliances. Features ...

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 (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 recording and reproduction, sound in addition. Information stored can be in the form of either an analog signal, analog or Digital signal (signal processing), digital signal. V ...

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 or "System 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 Sys ...

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 ...

system. It is often referred to simply as EIAJ, or sometimes as FM-FM audio.

Transistor nomenclature

The Japanese

technical standard A technical standard is an established Social norm, 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 producti ...

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 (electronics), terminal electronic component that conducts electric current primarily in One-way traffic, one direction (asymmetric electrical conductance, conductance). It has low (ideally zero) Electrical resistance ...

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 (, from a combination of Greek language ''θύρα'', meaning "door" or "valve", and ''transistor'' ) is a solid-state semiconductor device which can be thought of as being a highly robust and switchable diode, allowing the passage ...

** F N-base

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

** J P-channel

field effect transistor The field-effect transistor (FET) is a type of transistor that uses an electric field to control the current through a semiconductor. It comes in two types: junction FET (JFET) and metal-oxide-semiconductor FET (MOSFET). FETs have three termi ...

** 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, Toy, toys, arcade cabinets, and game centers, based in Shinjuku, Tokyo. The company was founded by Michael Kogan in 1953 as the importing vodka, Vending machine, vending machines, and Juk ...

, Tokyo, Japan. In 2000, Electronic Industries Association of Japan became a Pending merger with JEIDA and was Reorganized into JEITA.

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