onsemi, MOC8021SM Optocoupler, Surface Mount, 6-Pin SMT

The MOC8021M and MOC8050M are photodarlington-type optically coupled optocouplers. The devices have a gallium arsenide infrared emitting diode coupled with a silicon darlington phototransistor.

High BVCEO
Minimum 50V (MOC8021M)
Minimum 80V (MOC8050M)
High current transfer ratio:
Minimum 1,000% (MOC8021M)
Minimum 500% (MOC8050M)
500%
No base connection for improved noise immunity
Appliances, measuring instruments
I/O interface for computers
Programmable controllers
Portable electronics
Interfacing and coupling systems of different potentials and impedances
Solid state relays
Applications
Consumer Appliances
Industrial Motor