The R6030JNZ4 from ROHM Semiconductor is a MOSFET with Continous Drain Current -30 to 30 A, Drain Source Resistance 110 to 143 milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 5 to 7 V. Tags: Through Hole. More details for R6030JNZ4 can be seen below.