Semikron SKR 26/12 Thread Mount High Voltage Diode, Stud Cathode, 1200V 25A, 2-Pin DO-203AA. Diode Technology: Silicon Junction. Diode Type: Silicon Junction. Maximum Forward Voltage Drop: 1.75V. Length: 63mm. Width: 32mm. Height: 22mm. Maximum Operating Temperature: +125 °C.