The RJ1P12BBD from ROHM Semiconductor is a MOSFET with Continous Drain Current -120 to 120 A, Drain Source Resistance 4.4 to 7.8 Milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for RJ1P12BBD can be seen below.