The SZ1SMB5933BT3G from onsemi is a Power Diode with Forward Current 0.017 A, Forward Voltage 20.9 to 23.1 V, Reverse Current 1 uA, Reverse Voltage 16.7 V, Repetitive Peak Reverse Voltage 16.7 V. Tags: Surface Mount. More details for SZ1SMB5933BT3G can be seen below.