1,DIP optocoupler 817 Series 2,High input-output isolation voltage 3, CQC, UL, CSA approved 4, RoHS standard DIP Optocoupler 817 SeriesBasic ... relay, household use equipment, switching power supplyIt can replace H11C series, TLP541, LP741, TLP747 directlyCompliant with RoHS standardHigh isolation voltage ... carry a full line of JC817 optocoupler, both SMD and DIP available DIP Optocoupler 817 Series