- TLP523-4
- Nec Electronics
- Optocoupler & Solid State Relay Cross Reference Guide
- TLP523-4(F)
- Toshiba
- Optocoupler DC-IN 4-CH Darlington DC-OUT 16-Pin PDIP
- TLP523-4(LF1)
- Toshiba America Electronic Components, Inc.
- 4 CHANNEL DARLINGTON OUTPUT OPTOCOUPLER
- TLP523-4(LF2)
- Toshiba America Electronic Components, Inc.
- 4 CHANNEL DARLINGTON OUTPUT OPTOCOUPLER
- TLP523-4(LF4)
- Toshiba America Electronic Components, Inc.
- 4 CHANNEL DARLINGTON OUTPUT OPTOCOUPLER
- TLP523-4(LF5)
- Toshiba America Electronic Components, Inc.
- 4 CHANNEL DARLINGTON OUTPUT OPTOCOUPLER