View 2sa1839 datasheet:

SMD Type TransistorsPNP Transistors2SA1839SOT-23Unit: mm2.9+0.1-0.1+0.10.4 -0.1 Features 3 Small output capacitance. Low collector-to-emitter saturation voltage. Low ON resistance. 1 2+0.1+0.050.95 -0.1 0.1 -0.01+0.11.9 -0.11.Base2.Emitter3.collector Absolute Maximum Ratings Ta = 25Parameter Symbol Rating Unit Collector - Base Voltage VCBO -15 Collector - Emitter Voltage VCEO -10 V Emitter - Base Voltage VEBO -5 Collector Current - Continuous IC -100 Colletor Current - Pulse ICP -200 mA Base Current IB -20 Collector Power Dissipation PC 250 mW Junction Temperature TJ 150 Storage Temperature range Tstg -55 to 150 Electrical Characteristics Ta = 25Parameter Symbol Test Conditions Min Typ Max Unit Collector- base breakdown voltage VCBO Ic= -100 A IE=0 -15 Collector- emitter breakdow

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