6-PIN DIP General Purpose Photodarlington Optocoupler
High sensitivity to low input drive current.
Meets or excedes all JEDEC Registered specifications.
Safety and regulatory approvals UL1577, 4, 170 VACrms for 1 mintue.
DIN-EN/IEC60747-5-5, 850 V Peak working insulation voltage.
Lower power Logic Circult.
Telecommunications equipment.
Portable electronics.
Solid State relays. 
Interfacing Coupling systems of different portentials and impedances.