The QM3126M3 from uPI Semiconductor is a MOSFET with Continous Drain Current 7.7 to 32 A, Drain Source Resistance 12 to 21 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 QM3126M3 can be seen below.