1N1200A rectifier by General Electric. Package: military black DO-4 stud Awaiting GE datasheet, please download Diotec 1N1200A datasheet: Status: NOS (New Old Stock) comes with mounting kit: ( 2x mica insulating washers, 1 x insulating bush, 1 x solder tag washer, 1 x correct UNF threaded nut.) Tested components: YES RoHS compliant: no