s9018w.pdf datasheet:

S9018W TRASISTOR(NPN)SOT323 FEATURES Small Surface Mount Package MAXIMUM RATINGS (Ta=25 unless otherwise noted) Symbol Parameter Value Unit V Collector-Base Voltage 30 V CBO1. BASE V Collector-Emitter Voltage 15 V CEO2. EMITTER V Emitter-Base Voltage 5 V EBO3. COLLECTOR I Collector Current 50 mA CPC Collector Power Dissipation 200 mW R Thermal Resistance From Junction To Ambient 625 /W JAT Junction Temperature 150 jT Storage Temperature -55+150 stgELECTRICAL CHARACTERISTICS (Ta=25 unless otherwise specified) Parameter Symbol Test conditions Min Typ Max Unit Collector-base breakdown voltage V I =100A, I =0 30 V (BR)CBO C ECollector-emitter breakdown voltage V I =1mA, I =0 15 V (BR)CEO C BEmitter-base breakdown voltage V I =100A, I =0 5 V (BR)EBO E CCollector cut-off current I V =12V, I =