OPB871N55 from TT Electronics/Optek Technology is a SENSOR OPT SLOT PHOTOTRANS MODUL
OPB871N51 from TT Electronics/Optek Technology is a SENSOR OPT SLOT PHOTOTRANS MODUL
OPB871T55 from TT Electronics/Optek Technology is a SENSOR OPT SLOT PHOTOTRAN PCB MT
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