2sd1306.pdf datasheet:

SMD Type TransistorsNPN Transistors2SD1306SOT-23Unit: mm2.9+0.1-0.1+0.10.4-0.13 Features Collector Current Capability IC=0.7A Collector Emitter Voltage VCEO=15V1 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 30 Collector - Emitter Voltage VCEO 15 V Emitter - Base Voltage VEBO 5 Collector Current - Continuous IC 700 mA Collector Power Dissipation PC 150 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 30 Collector- emitter breakdown voltage VCEO Ic= 1 mA IB= 0 15 V Emitter - base breakdown voltage VEBO IE= 100