The 1F7 with Diodes - Rectifiers - Fast Recovery 1kV 1A 1.3V @ 1A 500ns R-1 RoHS is a single-phase rectifier diode manufactured by Good-Ark. It has a maximum forward voltage of 1.3V at 1A and a reverse voltage rating of 1kV. It can handle pulse forward current of 1A in 500ns. The part is RoHS compliant, which means it does not contain any hazardous substances.