The NTZD3154N from onsemi is a MOSFET with Continous Drain Current 0.5 A, Drain Source Resistance 0.4 to 0.9 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -7 to 7 V, Gate Source Threshold Voltage 1 V. Tags: Surface Mount. More details for NTZD3154N can be seen below.