The 3DD13003H6D is a NPN (Negative Positive Negative) 1.8A 400V RoHS-compliant transistor manufactured by Huajing. It has a TO-126 package and is made of an alloy of very high-grade materials, giving it outstanding performance and long life. It has a maximum continuous power dissipation rating of 25W, maximum collector emitter voltage of 400V, and maximum collector current of 1.8A. The transistor is designed for applications through frequencies up to 400MHz. It is suitable for applications such as radio frequency (RF) power amplifiers, switching circuits, datacom applications, inverting chains, and line drivers. The 3DD13003H6D is an ideal solution for those looking for a reliable, high-performance transistor.