Sino-MicroelectronicsThe 3DD13007K-220 is an NPN 8A 400V TO-220 RoHS transistor manufactured by Jilin Sino-Microelectronics. It is designed to be used in applications that require a heavy-duty switching solution, such as circuits used in automotive, marine, lighting, and audio visual applications. This device has a maximum collector-base voltage rating of 400 V, and can handle a maximum continuous collector current of 8A. It is designed for mounting on a TO-220 package for improved heat dissipation. It complies with the RoHS directive, and is considered to be an environmentally friendly device.