- 4N31X
- Isocom, Inc.
- 1 CHANNEL DARLINGTON OUTPUT OPTOCOUPLER
- 4N31XG
- Isocom, Inc.
- 1 CHANNEL DARLINGTON OUTPUT OPTOCOUPLER
- 4N31XSM
- Isocom, Inc.
- 1 CHANNEL DARLINGTON OUTPUT OPTOCOUPLER
- 4N31XSMT&R
- Isocom, Inc.
- 1 CHANNEL DARLINGTON OUTPUT OPTOCOUPLER
- 4N31XSMTR
- Isocom Components
- OPTICALLY COUPLED ISOLATOR PHOTODARLINGTON OUTPUT