nei. 20 stern ave springfield, new jersey 07081 u.sa unijunction transistors telephone: (973) 376-2922 (212)227-6005 fax: (973) 376-8960 to-5 case type 2n489 2n489a 2n489b 2n490 2n490a 2n490b 2n490c 2n491 2n491a 2n491b 2n492 ; 2n492a j 2n492b ] 2n492c 2n493 2n493a 2n493b 2n494 ! 2n494a 2n494b 2n494c 2n1671 2n1671a 2n1671b 2n1671c 2n2160 2N3479 2n3480 2n3481 2n3482 2n3483 | 2n3484 intrinsic standoff ratio n min. 0.51 0.51 0.51 0.51 0.51 0.51 0.51 0.56 0.56 0.56 0.56 0.56 0.56 0.56 0.62 0.62 0.62 0.62 0.62 0.62 0.62 0.47 0.47 0.47 0.47 0.47 0.47 0.56 0.70 0.51 0.60 0.70 max. 0.62 0.62 0.62 0.62 0.62 0.62 0.62 __, 0.68 0.68 0.68 0.68 0.68 0.68 0.68 0.75 0.75 0.75 0.75 0.75 0.76 0.75 0,62 0.62 0.62 0.62 0.80 0.62 0.75 0.85 0.62 0.72 0.85 interbase resistance rbb min. kjl 4.7 4.7 4.7 6.2 6.2 6.2 6.2 4.7 4.7 4.7 6.2 6.2 6.2 6.2 4.7 4.7 4.7 6.2 6.2 6.2 6.2 4.7 4.7 4.7 4.7 4.0 4.7 4.7 4.7 4.7 4.7 6.2 max. kcl 6.8 6.8 6.8 9.1 9.1 , 9.1 9.1 6.8 6.8 6.8 9.1 9.1 9.1 9.1 6.8 6.8 6.8 9.1 9.1 9.1 9.1 9.1 9.1 9.1 9.1 12 9.1 9.1 9.1 6.8 9.1 9.1 peak-point current ip max. ua 12 12 6.0 12 12 6.0 2.0 12 12 6.0 12 12 6.0 2.0 12 12 6.0 12 12 6 2.0 25 25 6.0 2.0 25 20 20 20 2.0 5.0 5.0 emitter rev. current max. ma 2.0 2,0 0.2 2.0 2.0 0.2 0.02 2.0 2.0 0.2 2.0 2.0 0.2 0.02 2.0 2.0 0.2 2.0 2.0 0.2 0.02 12 12 0.2 0.02 12 12 12 12 0.02 1.0 0.2 v 60 60 30 60 60 30 30 60 60 30 60 60 30 30 60 60 30 60 60 30 30 30 30 30 30 30 30 30 30 30 30 30 valley-point current lv min. ma 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 4.0 4.0 4.0 4.0 4.0 4,0 base 1 peak voltage vobi min. v _ 3.0 3.0 - 3.0 3.0 3.0 ? 3.0 3.0 ? 3.0 3.0 3.0 ? 3.0 3,0 _ 3.0 3.0 3.0 ? 3.0 3.0 3.0 3.0 3.0 3.0 3.0 4.0 4.0 6.0 i case -- ,- -t -1 g ?\ > f u to-5 -s-l t seating pl?ne n.i semi-conductors reserves the right to change test conditiuns. parameter limits and package dimensions without notice. information furnished by nj semi-c (inductors is believed to be both accurate and reliable at the time of going to press. ho\vever n.i semi-conductors assumes no responsibility for any errors or omissions discovered in its use. nj semi-conductors encourages customers to verify that datasheets are current before placing orders.
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