Production specification 4 PIN DIP PHOTOTRANSISTO.
FL817C - 4 PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
FL817 - 4 PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
FL817B - 4 PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
FL817A - 4 PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER
FL817D - 4 PIN DIP PHOTOTRANSISTOR PHOTOCOUPLER