This post explains for the transistor.
See the preview image and the PDF file for more information.
Part Number : S9014, Marking : J6
Function : NPN General Purpose Transistors
Package : TO-92 Type
Manufactures : KOO CHIN ELECTRONICS
Applications
1. Per-Amplifier low level & low noise.
Features of S9014
1. Complementary to S9015
2. Excellent HFE Linearity.
3. Power dissipation.(PC=0.2W)
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage : Vcbo = 50 V
2. Collector to Emitter Voltage : Vceo = 45 V
3. Emitter to Base Voltage : Vebo = 5 V
4. Collector Current : Ic = 100 mA
5. Total Dissipation : Pc = 200 mW
6. Storage Temperatue : Tsg = -55 ~ +150°C