.
K104 - Photocoupler(These Photocouplers consist of a Gallium Arsenide Infrared Emitting)
PC-16T1 - Photocoupler(Photocoupler consists of a Gallium Arsenide Infrared Emitting)
PC-17K1C - Photocoupler(Photocoupler consists of a Gallium Arsenide Infrared Emitting)