The R6004JNJ from ROHM Semiconductor is a MOSFET with Continous Drain Current -4 to 4 A, Drain Source Resistance 1100 to 1430 Milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 5 to 7 V. Tags: Surface Mount. More details for R6004JNJ can be seen below.