The Token PT-A4-AC-5-PN-850 is a 5mm phototransistor with a peak sensitivity wavelength of 850nm, an operating voltage of up to 30V, and an optical power rating of 70mW. The lens is transparent, allowing light to pass through to the phototransistor. This component is suitable for use in a variety of electronic applications, such as detectors, switches, and amplifiers. It is designed to be both reliable and efficient, lending itself to a wide range of applications.