The QA3111N6N from uPI Semiconductor is a MOSFET with Continous Drain Current 12 to 135 A, Drain Source Resistance 4.3 to 8.4 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 QA3111N6N can be seen below.