BUY OA79 https://www.utsource.net/itm/p/1367453.html
Shortform Data and Cross References (Misc Datasheets)
OA79 is a diode with a DO-7 package. It is a fast switching diode with a reverse voltage of up to 50V and a forward current of up to 1A. It is used in applications such as rectification, voltage clamping, and switching. It is also used in power supplies, motor control circuits, and other high-frequency applications. (For reference only)