The QM2407K from uPI Semiconductor is a MOSFET with Continous Drain Current -3.8 to -4.7 A, Drain Source Resistance 25 to 52 milli-ohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -0.3 to -1 V. Tags: Surface Mount. More details for QM2407K can be seen below.