MCR25DG is an NPN Darlington High-Current Transistor manufactured by ON Semiconductor. It is specifically designed for high-speed switching, pre-driver stages and line/motor drivers. The MCR25DG offers low saturation voltage and low input/output capacitance making it suited to high-frequency applications. It offers a collector-emitter voltage rating of 150 V, a collector current rating of 0.3 A, and a power dissipation rating of 3 W.