The BC327 is a PNP bipolar junction transistor (BJT) widely used for switching and amplification in electronic circuits.
 
Key Specifications
Type: PNP Transistor
Collector-Emitter Voltage (Vce): −45V
Collector Current (Ic): −800 mA (much higher than A1015)
Power Dissipation: ~625 mW
Gain (hFE): 100 – 630 (depends on variant: BC327-16, -25, -40)
Package: TO-92
 
Pin Configuration (TO-92)
With flat side facing you, legs downward:
Collector (C)
Base (B)
Emitter (E)
👉 Order: C – B – E
 
Common Uses
Switching circuits (relays, LEDs, motors)
Audio amplification
Driver circuits
 
Comparison with A1015
Feature
A1015
BC327
Type
PNP
PNP
Max Current
150 mA
800 mA 
Voltage
50V
45V
Usage
Signal
Power + Signal
👉 BC327 is stronger and can drive heavier loads.
 
Equivalent / Alternatives
BC557 (lower current)
S8550
2SA1015 (for lighter applications)