The D1031SH45T from Infineon Technologies is a Power Diode with Forward Current 1120 A, Reverse Current 100 mA, Repetitive Peak Reverse Voltage 4500 V, Non-Repetitive Peak Forward Current 23000 A, Temperature operating range 0 to +140 Degree C. Tags: Ceramic. More details for D1031SH45T can be seen below.