The QS5U28 from ROHM Semiconductor is a MOSFET with Continous Drain Current -2 to 2 A, Drain Source Resistance 90 to 245 milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -2 to -0.7 V. Tags: Surface Mount. More details for QS5U28 can be seen below.