Electronic Industries Association of Japan

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 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 • F N-base unijunction transistor • J P-channel field effect transistor • 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, Tokyo, Japan. In 2000, Electronic Industries Association of Japan became a Pending merger with JEIDA and was Reorganized into JEITA. ==References==