The SZ1SMB5930BT3G from onsemi is a Power Diode with Forward Current 0.0234 A, Forward Voltage 15.2 to 16.8 V, Reverse Current 1 uA, Reverse Voltage 12.2 V, Repetitive Peak Reverse Voltage 12.2 V. Tags: Surface Mount. More details for SZ1SMB5930BT3G can be seen below.