Central Semiconductor Corp. Single Bipolar Transistors 2N4033 PBFREE

The 2N4033 is a PNP silicon transistor in a TO-39 package, designed for high current general purpose amplifier applications. It has a collector-base voltage rating of 80 V, collector-emitter voltage of 80 V, and continuous collector current of 1.0 A. Power dissipation is 1.25 W at 25°C ambient temperature, with a thermal resistance ΘJA of 140 °C/W. The transistor exhibits a current gain (hFE) ranging from 25 to 300 depending on collector current, and a transition frequency (fT) of 100 to 400 MHz. The TO-39 case has leads configured as emitter, base, and collector. The PBFREE suffix indicates a lead-free plating variant, consistent with the manufacturer's PBFREE ordering option.