The FDB28N30TM from onsemi is a MOSFET with Continous Drain Current 28 A, Drain Source Resistance 129 milliohm, Drain Source Breakdown Voltage 300 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 5 V. Tags: Surface Mount. More details for FDB28N30TM can be seen below.