Central Semiconductor Corp. Bipolar Transistors - BJT 2N4904

The 2N4904 is a PNP silicon power transistor in a TO-3 package, designed for general-purpose amplifier and switching applications. It has a collector-base and collector-emitter voltage rating of 40 V, with a continuous collector current of 5.0 A and power dissipation of 87.5 W. Thermal resistance is 2.0 °C/W, and the junction temperature operates from -65 °C to +200 °C. Collector-emitter saturation voltage is 1.0 V at 2.5 A collector current and 250 mA base current, and 1.5 V at 5.0 A and 1.0 A base current. Current gain (hFE) ranges from 25 to 100 at 2.5 A and 2.0 V. Transition frequency is 4.0 MHz at 1.0 A and 10 V.