The FQD5N15 from onsemi is a MOSFET with Continous Drain Current 4.3 A, Drain Source Resistance 620 to 800 milliohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -25 to 25 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for FQD5N15 can be seen below.