2sc2757.pdf datasheet:

SMD Type TransistorsNPN Transistors2SC2757SOT-23Unit: mm+0.12.9 -0.10.4+0.1-0.13 Features Collector Current Capability IC=50mA1 2 Collector Emitter Voltage VCEO=15V+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 50 mA Collector Power Dissipation PC 150 mW Junction Temperature TJ 125 Storage Temperature Range Tstg -55 to 125 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= 1mA IB= 0 15 V Emitter - base breakdown voltage VEBO IE= 100A