The ITR1203DT50A/TB by Everlight is a Photo Interrupter RoHS-compliant Through Hole electronic part. It has a metal housing, an LED emitter and an integrated phototransistor designed for bidirectional detection. The metal housing significantly reduces any amount of interference, while the LED emitter and phototransistor enable accurate detection of obstructions in a designated area. It also has a fast response time, an ambient operating temperature of -30°C to 85°C, and a current transfer ratio of 50%. In addition, it has low dark current on its phototransistor, with a no-load collector current of 10uA (max) at 5V (max). Overall, this part is reliable and efficient, perfect for use in assembly and automatic control systems.