The G18P03S from Goford Semiconductor is a MOSFET with Continous Drain Current -15 A, Drain Source Resistance 8.1 to 15 milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.5 to -1.1 V. Tags: Surface Mount. More details for G18P03S can be seen below.