The 1SMB5928BT3G from onsemi is a Power Diode with Forward Current 0.0288 A, Forward Voltage 12.35 to 13.65 V, Reverse Current 1 uA, Reverse Voltage 9.9 V, Repetitive Peak Reverse Voltage 9.9 V. Tags: Surface Mount. More details for 1SMB5928BT3G can be seen below.