View 2sa1898 datasheet:

SMD Type TransistorsPNP Transistors2SA18981.70 0.1 Features Large current capacity. Low collector-to-emitter saturation voltage.0.42 0.10.46 0.1 Fast switching speed.1.Base2.Collector3.Emitter Absolute Maximum Ratings Ta = 25Parameter Symbol Rating Unit Collector - Base Voltage VCBO -15 Collector - Emitter Voltage VCEO -15 V Emitter - Base Voltage VEBO -5 Collector Current - Continuous IC -3 Colletor Current - Pulse ICP -5 A Base Current IB -0.6 Collector Power Dissipation PC 1.3 W 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 breakdown voltage VCEO Ic= -1 mARBE= -15 V Emitter - base breakdown voltage VE

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