Numero di parte	Produttore / Marca	Breve descrizione
QRE00034	ON Semiconductor	SENSR OPTO TRANSISTOR 4MM REFL TH PCB
QRE1113	ON Semiconductor	SENSOR REFL 5MM PHOTOTRANSISTOR THRU
QRE1113.GR	FAIRCHILD	REFLECTIVE OBJECT SENSOR IC
QRE1113GR	ON Semiconductor	SENSOR OPTO TRANSISTOR REFL SMD PHOTO