| Manufacturer | Part Number | Description |
|---|---|---|
NEC (now Renesas Electronics)
| PS2561L1-1 | HIGH ISOLATION VOLTAGE SINGLE TRANSISTOR TYPE MULTI PHOTOCOUPLER SERIES |
Renesas
| PS2561L1-1 | GaAs light emitting diode and an NPN silicon phototransistor |
CEL
| PS2561L1-1 | PHOTOCOUPLER |
