1,DIP optocoupler 817 Series 2,High input-output isolation voltage 3, CQC, UL, CSA approved ... . CQC approved6. UL approved7. CSA approvedDescription1. The JC817 series are optically coupled isolators containing a GaAs light emitting diode ... relay, household use equipment, switching power supplyIt can replace H11C series, TLP541, LP741, TLP747 directlyCompliant with RoHS standardHigh isolation voltage ...