.
K5621 - Photocoupler(These Photocouplers cosist of a Gallium Arsenide Infrared Emitting)
K5620 - Photocoupler(These Photocouplers cosist of a Gallium Arsenide Infrared Emitting)
K4N29 - Photocoupler(These Photocouplers cosist of a Gallium Arsenide Infrared Emitting)
K4N30 - Photocoupler(These Photocouplers cosist of a Gallium Arsenide Infrared Emitting)
K4N31 - Photocoupler(These Photocouplers cosist of a Gallium Arsenide Infrared Emitting)