The QS8J13 from ROHM Semiconductor is a MOSFET with Continous Drain Current -5.5 to 5.5 A, Drain Source Resistance 15 to 58 milliohm, Drain Source Breakdown Voltage -12 V, Gate Source Voltage -8 to 0 V, Gate Source Threshold Voltage -1 to -0.3 V. Tags: Surface Mount. More details for QS8J13 can be seen below.