The Optosupply OSPK71B1P is a Phototransistor, Optically Isolated, Cable Mount, Through Hole pack. It belongs to the Optosupply Series of OSPK. This transistor is suitable for a variety of high-reliability applications, including automotive, industrial and medical. It has a direct interface with logic circuitry and can be used in conjunction with a variety of components, including light-emitting diodes (LEDs) and photodiodes. It has a maximum peak wavelength of 850nm and a maximum package current of 50µA. The operating temperature range is between -40 to +85°C.