Optical sensors, Led accessory, photodetector optocoupler, electrical isolation

 ILD207T Series Dual Channel 70 V 4000 Vrms Phototransistor Optocoupler - SOIC-8

https://www.futureelectronics.com/p/semiconductors--optoelectronics--isolation-components-optocouplers/ild207t-vishay-7297906