View s9018 datasheet:

S9018BIPOLAR TRANSISTOR (NPN)FEATURES AM/FM Amplifier,Local Oscillator of FM/VHF tuner High current gain bandwidth product Surface Mount deviceSOT-23MECHANICAL DATA Case: SOT-23 Case Material: Molded Plastic. UL flammability Classification Rating: 94V-0Weight: 0.008 grams (approximate)MAXIMUM RATINGS (T = 25C unless otherwise noted)AParameter Symbol Value UnitVCollector-Base Voltage CBO 30 VVCollector-Emitter Voltage CEO 15 VVEmitter-Base Voltage EBO 5 VCollector Current IC 50 mACollector Power DissipationPC 200 mWThermal Resistance From Junction To Ambient R 625 C/WJAJunction Temperature TJ 150 CStorage Temperature TSTG -55 ~+150 CELECTRICAL CHARACTERISTICS (T = 25C unless otherwise specified)AParameter Symbol Min Typ Max Unit ConditionsCollector-base breakdown voltage V(BR)CBO30 V I =1

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 s9018.pdf Design, MOSFET, Power

 s9018.pdf RoHS Compliant, Service, Triacs, Semiconductor

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