The Sharp Microelectronics GP2S28 is a reflective phototransistor sensor with a sensing distance of 0.551 inches (14mm). It has a maximum collector-emitter breakdown voltage of 35V and a continuous forward current of 60mA. The sensor has a response time of 20μs and is mounted through a hole. The GP2S28 is part of the GP2S28 family and is categorized under Sensors and Transducers. The temperature range for operating the sensor is -25°C to 85°C. The supply and demand status is balanced and it is estimated to be obsolete/end of life.