onsemi 2N3905

The 2N3905 is a PNP general purpose transistor designed for amplification and switching applications with collector currents up to 200 mA. It is packaged in a TO-92 case and has a maximum collector-emitter voltage of 40 V, a collector-base voltage of 40 V, and an emitter-base voltage of 5.0 V. The device dissipates up to 625 mW at 25°C, with a derating of 5.0 mW/°C above that temperature. Its junction temperature range is -55°C to +150°C. Electrical characteristics include a DC current gain (hFE) ranging from 15 to 150 depending on collector current and temperature, collector-emitter saturation voltage of 0.25 V at 10 mA collector current, and base-emitter saturation voltage of 0.65 to 0.95 V. Input and output capacitances are 10 pF and 4.5 pF, respectively, at 1 MHz. The transistor meets thermal and electrical specifications under typical operating conditions and is not intended for use in life support systems.