The RM150N30ALD from Rectron Semiconductor is a MOSFET with Continous Drain Current 150 A, Drain Source Resistance 2.6 to 5 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for RM150N30ALD can be seen below.