We can supply you the following different models of standard recovery Diode. 1) Stud type standard recovery diodes, 5A ~ 500A, 100V ~ 5000V, hermetic metal case with ceramic insulator and hermetic glass-metal seal selectable. 2) Disc type standard recovery diodes, 5A ~ 5000A, 100V ~ 5000V, hermetic metal case with ceramic insulator. 3) Rotary type standard recovery diodes, 300A ~ 500A, 600V ~ 2000V.