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ONSEMI 2N3904TAR NPN General-Purpose Amplifier

The ONSEMI 2N3904TAR is a general-purpose NPN bipolar junction transistor (BJT) designed for amplifier and switching applications. It exhibits a useful dynamic range, capable of operating as a switch up to 100mA and as an amplifier up to 100MHz. Its versatility makes it suitable for various industrial applications including audio amplification, voltage regulators, and general-purpose switching circuits. The device is characterized by its ease of use and reliable performance, making it a popular choice for both hobbyists and professional engineers.

Authorized Distributors
Source:Newark
Part No:2N3904TAR
Stock:8188
Inv Date:06-10-2026
Price: Unit price: $0.283
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Source:DigiKey
Part No:2N3904TAR
Stock:11375
Inv Date:06-11-2026
Price: Unit price: $0.29
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Part No:2N3904TAR
Stock:11835
Inv Date:06-11-2026
Price: Unit price: $0.29
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Part No:2N3904TAR
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.0502
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Part No:2N3904TAR
Stock:9259
Inv Date:06-11-2026
Price: N/A
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ONSEMI 2N3904TAR NPN General-Purpose Amplifier Specifications:

  • Collector-Emitter Voltage (VCEO): 40 V
  • Collector-Base Voltage (VCBO): 60 V
  • Emitter-Base Voltage (VEBO): 6.0 V
  • Collector Current - Continuous (IC): 200 mA
  • Operating and Storage Junction Temperature Range (TJ, TSTG): -55 to 150 °C
  • Total Device Dissipation (PD): 625 mW
  • Thermal Resistance, Junction to Case (RθJC): 83.3 °C/W
  • Thermal Resistance, Junction to Ambient (RθJA): 200 °C/W
  • DC Current Gain (hFE): 40-300
  • Collector-Emitter Saturation Voltage (VCE(sat)): ≤ 0.3 V
  • Base-Emitter Saturation Voltage (VBE(sat)): 0.65 to 0.85 V
  • Current Gain - Bandwidth Product (fT): ≥ 300 MHz
  • Output Capacitance (Cobo): ≤ 4.0 pF
  • Input Capacitance (Cibo): ≤ 8.0 pF
  • Noise Figure (NF): ≤ 5.0 dB
  • Delay Time (td): ≤ 35 ns
  • Rise Time (tr): ≤ 35 ns
  • Storage Time (ts): ≤ 200 ns
  • Fall Time (tf): ≤ 50 ns

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Frequently Asked Questions

Where can I buy ONSEMI 2N3904TAR?

You can click on the BUY or RFQ button to purchase 2N3904TAR from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part 2N3904TAR?

You can download the 2N3904TAR datasheet or visit the ONSEMI website for support.

Who is the manufacturer of 2N3904TAR?

ONSEMI

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