common electronic of semiconductor diode on white background

active anode arrow background barrier black board cathode circuit closeup common component current design development device diagram different diode drawing educative electric electrical electricity electronic electrotechnics electrotechnology element elementary engineering ewaste field graphic icon industry isolated layout many mounting network nobody object panoramic part pcb pictogram picture pile printed rectifier recycling red repair schematic scheme schottky science semiconductor service shop single size spare standard symbol tech technical technology type typical varicap various white wire zener