the optocoupler ic consists of gallium arsenide infrared led and a silicon npn phototransistor

rendering background bjt black capacitors circuit circuitry closeup collector collision component coupler diode electrical electricity emitter emitting engineering high tech technology voltage infrared isolated isolation isolator led light low material micro noises non conductive object optical opto optocoupler photo photosensitive pin power converter processor semiconductor industry signal system transfer transistor transparent white consists gallium arsenide silicon npn phototransistor