The BC640-16 from SeCoS Corporation is a Bipolar Junction Transistor with Emitter Base Voltage -5 V, Emitter Cut off Current -0.1 µA, Collector Base Voltage -100 V, Collector Cut off Current -0.1 µA, Collector Emitter Breakdown Voltage -80 V. Tags: Through Hole, PNP Transistor. More details for BC640-16 can be seen below.