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Radiation Hardened NPN Silicon Switching Transistors2N2221A, 2N2221AL, 2N2221AUA, 2N2221AUB2N2222A, 2N2222AL, 2N2222AUA, 2N2222AUBFeatures Qualified to MIL-PRF-19500/255 Levels: CommericalJANSJANSM-3K Rads (Si) JANSD-l0K Rads (Si) JANSP-30K Rads (Si) JANSL-50K Rads (Si) JANSR-l00K Rads (Si) TO-18 (TO-206AA), Surface mount UA & UB PackagesAbsolute Maximum Ratings (Tc = +25 C unless otherwise noted)Ratings Symbol Value UnitsCollector - Emitter Voltage VCEO 50 VdcCollector - Base Voltage VCBO 75 VdcEmitter - Base Voltage VEBO 6.0 VdcCollector Current IC 800 mAdcTotal Power Dissipation @ TA = +25 C2N2221A, L 2N2222A, L PT 0.5 W2N2221AUA 2N2222AUA 0.52N2221AUB 2N2222AUB 0.5Operating & Storage Temperature Range Top, Tstg -65 to +200 CThermal CharacteristicsCharacteristics Symbol Maximum UnitsThermal Resistance, Junction-t