The MTP2603N6-0-T1-G from Cystech Electronics is a MOSFET with Continous Drain Current -5 to -4 A, Drain Source Resistance 30 to 58 milli-ohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -1.2 to -0.4 V. Tags: Surface Mount. More details for MTP2603N6-0-T1-G can be seen below.