NPN General Purpose Amplifier This device is designed as a general purpose amplifier and switch. The useful dynamic range extends to 100 mA as a switch and to 100 MHz as an amplifier. Absolute Maximum Ratings* T A = 25°C unless otherwise noted Features, Applications: Features. Symbol Parameter Collector-Emitter Breakdown Voltage* C=1.0mAdc, IB=0) Collector-Base Breakdown Voltage (I C=10µ Adc, IE=0) Emitter-Base Breakdown Voltage (I E=10µ Adc, IC=0) Base Cutoff Current (VCE=30Vdc, VBE=3.0Vdc) Collector Cutoff Current VBE=3.0Vdc) DC Current Gain* C=100mAdc, VCE=1.0Vdc) Collector-Emitter Saturation Voltage C=50mAdc, IB=5.0mAdc) Base ... 2N3904 Absolute maximum ratings Ta=25 °C Characteristic Symbol Ratings Unit Collector-Base voltage VCBO 60 V Collector-Emitter voltage VCEO 40 V Emitter-base voltage VEBO 6V Collector current IC 200 mA Collector dissipation PC 625 mW Junction temperature Tj 150 °C Storage temperature range Tstg-55~150 °C

The 2N3904 is a common NPN bipolar junction transistor used for general-purpose low-power amplifying or switching applications. [1] [2] [3] It is designed for low current and power , medium voltage , and can operate at moderately high speeds. 2N3904 Datasheet (PDF) 1.1. 2n3904g.pdf Size:398K _upd SEMICONDUCTOR 2N3904 TECHNICAL DATA FEATURE NPN silicon epitaxial planar transistor for switching and TO-92 Amplifier applications As complementary type, the PNP transistor 2N3906 is Recommended 1. EMITTER 2. BASE 3.