The MSC030SDA170B from Microchip Technology is a Power Diode with Forward Current 31 to 82 A, Forward Voltage 1.5 to 2.25 V, Reverse Current 4 to 200 uA, Reverse Voltage 1700 V, Repetitive Peak Reverse Voltage 1700 V. Tags: Through Hole. More details for MSC030SDA170B can be seen below.