Part Number : BC109
Function : 30V, 100mA, Low Power Bipolar Transistor
Package : TO-18 Type
Maker : ST, Simens, Micro Electronics
Pinouts : 
Description :
NPN Silicon Planar Epitaxial Transistor.
Suitable for applications requiring low noise and good hFElinearity, eg. audio pre-amplifiers, and instrumentation.
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage : Vcbo = 30 V
2. Collector to Emitter Voltage : Vceo = 25 V
3. Emitter to Base Voltage : Vebo = 5 V
4. Collector Current : Ic = 0.2 A
5. Total Dissipation : Pd = 0.6 W
6. Junction Temperature : Tj = -65 ~ +150°C
7. Storage Temperatue : Tsg = -65 ~ +150°C
Datasheet PDF Download : 
Others datasheet of same file : BC107, BC108, BC- 109