The 1SMB5947BT3G from onsemi is a Power Diode with Forward Current 0.0046 A, Forward Voltage 77.9 to 86.1 V, Reverse Current 1 uA, Reverse Voltage 62.2 V, Repetitive Peak Reverse Voltage 62.2 V. Tags: Surface Mount. More details for 1SMB5947BT3G can be seen below.