MJE3055T NPN Power Transistor (TO-220)

The MJE3055T has been a mainstay NPN power transistor for decades, prized for a solid 10A current rating in an affordable TO-220 package that makes it a reliable choice for audio amplifier output stages, voltage regulator pass transistors handling real current, and general medium-to-high power switching duty. It is typically paired with its PNP complement, the MJE2955, in push-pull amplifier designs, but stands on its own just as well for any project needing a dependable, well-documented power transistor with a long track record in published circuit designs.