The DTC123ECA with SOT-23 digital transistors ROHS is a type of semiconductor component manufactured by Changjing Electronics Technology. It is a surface mount device designed for applications such as switching, signal conditioning, logic, and power management. It features a common emitter configuration with a PNP-NPN structure, which makes it ideal for logic level shift and motor control applications. It is ROHS compliant, and has a maximum breakdown voltage of 30V with a collector current rating of 500mA. The device has an operating temperature range of -40°C to +150°C, and is widely used in consumer electronics, automotive, and industrial applications.