The QS5W1TR from ROHM Semiconductor is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Emitter Cut off Current 1 µA, Collector Base Voltage 30 V, Collector Cut off Current 1 µA, Collector Emitter Breakdown Voltage 30 V. Tags: Surface Mount, NPN Transistor. More details for QS5W1TR can be seen below.