The VBP104FAS is an optocoupler manufactured by Vishay. The optocoupler consists of a pair of Photodiodes Gullwing 780-1050nm +/-65 deg which are used to provide a form of galvanic separation between two electrical parts. The photodiodes are sensitive to infrared light of wavelengths between 780 – 1050nm and have a wide acceptance angle of +/-65 degrees. The optocoupler can be used for voltage, current, and light level sensing applications, and is specifically designed for industrial automation, medical, and automotive markets. The optocoupler is a DIP package which is easy to mount on a PCB.