Part Number : BC557B
Function : - 45V, PNP Amplifier Transistor
Package : TO-92 Type
Maker : ON Semiconductor
Pinouts : 
Description :
Amplifier PNP Silicon Transistor
Features
• Pb−Free Packages are Available
Absolute maximum ratings ( Ta=25°C )
1. Collector to Base Voltage : Vcbo = - 45 V
2. Collector to Emitter Voltage : Vceo = - 50 V
3. Emitter to Base Voltage : Vebo = - 5 V
4. Collector Current : Ic = - 100 mA
5. Total Dissipation : Pc = 625 mW
6. Junction Temperature : Tj = 150°C
7. Storage Temperatue : Tsg = -55 ~ +150°C
Datasheet PDF Download : 
Others datasheet of same file :
BC556B, BC556BG, BC556BRL1, BC556BZL1G, BC557