The BC140 from Central Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 7 V, Emitter Cut off Current 100 nA, Collector Base Voltage 80 V, Collector Cut off Current 0.1 to 100 µA, Collector Emitter Breakdown Voltage 40 V. Tags: Through Hole, NPN Transistor. More details for BC140 can be seen below.