2N2218I A, 2N2219I A 2N2221 I A{sILiCON)
2N2222,A, 2N5581 , 2N5582
NPN SILICON ANNULAR HERMETIC TRANSISTORS
. . . widely used "Industry Standard" transistors for applications as medium-speed switches and as amplifiers from audio to VHF frequencies.
DC Current Gain Specified - 1.0 to 500 mAdc Low Collector-Emitter Saturation Voltage -
VCE(sat) @ IC = 500...
