FAIRCHILD SEMICONDUCTOR 4N33.300... OPTOCOUPLER, DARLINGTON O/P
Darlington Output Optocoupler, 1-Element, 1500V Isolation, DIP-6
Optocoupler 1-CH DC-IN 30V 150mA 5.3kV DIP
Darlington Output Optocoupler, 1-Element, 5300V Isolation, DIP-6