The QM3214S from uPI Semiconductor is a MOSFET with Continous Drain Current 7 to 9 A, Drain Source Resistance 10 to 18 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 2.5 V. Tags: Surface Mount. More details for QM3214S can be seen below.