70HFR100 100Volt 70Amp rectifier in a DO-5 stud case * manufactured by International Rectifier as distributed by Beechcraft for aviation use. Beechcraft part number: 50-364308-21 awaiting datasheet. Status: NOS (New Old Stock) Tested Components: YES ex USAF. Please note thse are a "heavy duty" DO-5 package with a white ceramic insulator and wide top connection. RoHS:no