The BC307 from Lision Technology is a Bipolar Junction Transistor with Emitter Base Voltage 5 V, Collector Base Voltage 50 V, Collector Emitter Breakdown Voltage 45 V, Collector Emitter Voltage 45 V, Continuous Collector Current 100 mA. Tags: Through Hole, PNP Transistor. More details for BC307 can be seen below.