PC817X Seriescontains an IRED optically coupled to a phototransistor. ( PC817A, PC817B, PC817C, PC817D ) It is packaged in a 4pin DIP, available in wide-lead spacing option and SMT gullwing lead-form option. Input-output isolation voltage(rms) is 5.0kV.Collector-emitter voltage is 80V(*) and CTR is 50% to 600% at input current of 5mA.

PC817: 1-channel type
PC827: 2-channel type
PC837: 3-channel type
PC847: 4-channel type