mpsa92.pdf datasheet:

MPSA92High-Voltage PNP TransistorsP b Lead(Pb)-FreeTO-921. EMITTER122. BASE33. COLLECTORABSOLUTE MAXIMUM RATINGS (Ta=25 C)Rating SymbolValue UnitCollector-Emitter Voltage VCEO -305 VdcCollector-Base Voltage VCBO -310 VdcEmitter-Base Voltage VEBO-5.0 VdcCollector Current IC-500 mAdcPD 0.625Total Device Dissipation T =25 C WAJunction Temperature T 150j C-55 to +150Storage, Temperature Tstg CELECTRICAL CHARACTERISTICSCharacteristics Symbol Min Max Unit-Collector-Emitter Breakdown Voltage (IC= -1.0 mAdc, IB=0) V(BR)CEO -305VdcCollector-Base Breakdown Voltage (IC= -100 uAdc, IE=0) V(BR)CBO -310 - Vdc-VdcV(BR)EBO -5.0Emitter-Base Breakdown Voltage (IE= -100 uAdc, IC=0)-ICBO uAdc-0.25Collector Cutoff Current (V = -200 Vdc, IE=0)CB-IEBOdEmitter Cutoff Current (VEB= -5.0V c, I =0) -0.1 uAdcCWEITRON