The FDMC4435BZ from onsemi is a MOSFET with Continous Drain Current -8.5 to -18 A, Drain Source Resistance 14 to 37 milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage 25 V, Gate Source Threshold Voltage -3 to -1 V. Tags: Surface Mount. More details for FDMC4435BZ can be seen below.