2N3904 NPN Transistor Description

The 2N3904 is a general purpose NPN bipolar junction transistor designed for low current, medium voltage, and low power switching and amplification. It is widely used in various electronic circuits including amplifiers and switching applications.

Features / Specs:

• Transistor Type: Bipolar Junction Transistor (BJT)
• Transistor Polarity: NPN
• Collector-Emitter Voltage (VCEO) Max: 40 V
• Collector-Base Voltage (VCBO): 60 V
• Emitter-Base Voltage (VEBO): 6 V
• Collector-Emitter Saturation Voltage (VCE(sat)): 300 mV (typical)
• Maximum DC Collector Current (IC): 200 mA
• Power Dissipation (Pd): 625 mW
• Transition Frequency (fT): 300 MHz (typical)
• Maximum Operating Temperature: 150°C
• Mounting Style: Through Hole
• Package/Case: TO-92

Applications:

• Low power switching
• Signal amplification
• Oscillator circuits
• General purpose amplification
• Driver stages in audio circuits
• Low power motor drivers

For detailed electrical characteristics and mechanical data, see the official datasheet:

2N3904 Datasheet (ON Semiconductor)