IC Optocoupler PC817 EL817C
New IC optocouplersA single-channel NPN-type phototransistor driven via a light-emitting diode. Used in applications requiring signal transmission between electronic circuits with different potentials and impedances, as well as for computer terminals, measuring instruments, etc. Current transfer ratio - MIN. 50% at If = 5mA, VCE = 5V. Package - SOP-4