SMD, LED Driver with Key Scan Function, (Common Cathode Type) 4 digits x13 segments or 7 digits x 10 segments, 3.0V to 5.5V

Optocoupler, Transistor Output, 2 Channel, 60mA, 5.3kV, 12.5 %

Transistor Output Optocouplers Phototransistor, 4 Channel, 100%, 60mA, 30V, 500mW, 5.3kV