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2N2219A2N2222AHIGH SPEED SWITCHESPRELIMINARY DATADESCRIPTION The 2N2219A and 2N2222A are silicon PlanarEpitaxial NPN transistors in Jedec TO-39 (for2N2219A) and in Jedec TO-18 (for 2N2222A)metal case. They are designed for high speedswitching application at collector current up to500mA, and feature useful current gain over awide range of collector current, low leakagecurrents and low saturation voltage.TO-18 TO-39INTERNAL SCHEMATIC DIAGRAMABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Collector-Base Voltage (I = 0) 75 VCBO EV Collector-Emitter Voltage (I = 0) 40 VCEO BVEBO Emitter-Base Voltage (IC = 0) 6 VIC Collector Current 0.6 AICM Collector Peak Current (tp