2N4991 ETC
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Planeta JSC Planeta, 2/13, Fedorovsky Ruchei , Veliky Novgorod, 173004, Russia E l e c t r o n i c c o m p a n y Ph/Fax: +7 (81622) 3 - 17 - 36, 3 - 32 - 86 E - mail: planeta@novgorod.net http: //www.novgorod.net/~planeta 2N4991 Silicon b ilateral switch (S B S) in package TO - 92 2.5 0.7max 5.2 1.6 0.45max 14.5 4.2 5.2 Ratings Symbol Parameter, units Limits IT(rms) DC forward anode current, mA 200 Igm DC gate current, mA 5 IT(sm) Peak recurrent forward current, A, (1% duty cycle, 10 µsec pulse width) P Power dissipation, mW 300 Electrical Characteristics (T A =25°C) Limits Symbol Parameter, unit, test conditions min max V S Switching voltage, V 6 10 IS Switching current, µA 5 00 IH Holding current, mA 1 .5 IB C urrent (off - state), µA, V F =5V 0. 1 V F On - State voltage, V, IF =175mA 1.5 Pinouts: 1 - Anode II , 2 - Gate, 3 - Anode I