The PHB21N06LT from Nexperia is a MOSFET with Continous Drain Current 13 to 19 A, Drain Source Resistance 55 to 158 Milliohm, Drain Source Breakdown Voltage 55 V, Gate Source Voltage -15 to 15 V, Gate Source Threshold Voltage 0.5 to 2 V. Tags: Surface Mount. More details for PHB21N06LT can be seen below.