MJE243 NPN Power Transistor – High Current & High Voltage

The MJE243 from ON Semi is a dependable NPN power transistor built for demanding circuits. It supports up to 4 A of continuous current and withstands 100 V between collector and emitter, making it suitable for industrial and commercial designs. With low saturation and solid current gain, it performs well in switching roles and amplifier stages. Packaged in TO-225AA for through-hole mounting, the MJE243 combines reliable thermal handling with compact size. Whether you’re building power regulators, motor drivers, or converter circuits, this transistor delivers consistent performance. Check pricing and stock — order your MJE243 today!