The FQD7N30 from onsemi is a MOSFET with Continous Drain Current 5.5 A, Drain Source Resistance 530 to 700 milliohm, Drain Source Breakdown Voltage 300 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Surface Mount. More details for FQD7N30 can be seen below.