DESCRIPTION
The PS2561-1 is an optically coupled isolator containing a GaAs light emitting diode and an NPN silicon phototransistor.

DESCRIPTION
The PS2501-1, -4 and PS2501L-1, -4 are optically coupled isolators containing a GaAs light emitting diode and an NPN silicon phototransistor.

DESCRIPTION
The PS2521-1 and PS2521L-1 are optically coupled isolators containing a GaAs light emitting diode and an NPN silicon phototransistor.