All ProductsTt Electronics/welwynSemiconductorsIsolatorsOptoisolators - Logic Output TT ELECTRONICS/WELWYN SemiconductorsIsolatorsOptoisolators - Logic Output OPI1266 LOGIC OUTPUT OPTOISOLATOR 500KBPS OPEN COLLECTOR, SCHOTTKY CLAMPED 16000VDC 1 CHANNEL MFR. Name: Tt Electronics/welwyn