NSM4002MR6T1G contains two NPN transistors. The base of the Q2 NPN transistor is internally connected to the collector of the Q1 NPN transistor. This device is designed to replace a discrete solution that is common for providing a constant current by integrating these two components into a single device. NSM4002MR6T1G is housed in a SC-74 package which is ideal for surface mount applications in space constrained applications.