SFH617G-1X, SFH617G-2X, SFH617G-3X, SFH617G-4X SFH617G-1, SFH617G-2, SFH617G-3, SFH617G-4 LOW INPUT CURRENT PHOTOTRANSISTOR OPTICALLY COUPLED ISOLATORS APPROVALS l UL recognised, File No. E91231 'X'...