The QS6Z5TR from ROHM Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Emitter Cut off Current 1 µA, Collector Base Voltage 50 V, Collector Cut off Current 1 µA, Collector Emitter Breakdown Voltage 50 V. Tags: Surface Mount. More details for QS6Z5TR can be seen below.