The BTC2059N3-Q-T1-G from Cystech Electronics is a Bipolar Junction Transistor with Emitter Base Voltage 3 V, Emitter Cut off Current 0.5 µA, Collector Base Voltage 25 V, Collector Cut off Current 0.5 µA, Collector Emitter Voltage 18 V. Tags: Surface Mount, NPN Transistor. More details for BTC2059N3-Q-T1-G can be seen below.