The 1SMB5938BT3G from onsemi is a Power Diode with Forward Current 0.0104 A, Forward Voltage 34.2 to 37.8 V, Reverse Current 1 uA, Reverse Voltage 27.4 V, Repetitive Peak Reverse Voltage 27.4 V. Tags: Surface Mount. More details for 1SMB5938BT3G can be seen below.