2N3904TA

Single Bipolar Transistors Overview

The onsemi 2N3904TA is a general-purpose NPN silicon bipolar junction transistor (BJT) designed for amplifier and switching applications. It features a maximum collector current of 200 mA, a collector-emitter voltage rating of 40 V, and a collector-base voltage of 60 V. The device operates within a temperature range of -55°C to +150°C junction temperature. Key electrical characteristics include a transition frequency of 300 MHz, a power dissipation capacity of 625 mW, and a DC current gain (hFE) up to 300. It is housed in a TO-92-3 package with kinked leads for through-hole mounting.

Single Bipolar Transistors Feature Summary

• General-purpose NPN configuration suitable for low-power amplification and switching tasks
• High thermal stability supporting operation up to 150°C junction temperature
• Fast switching capability defined by a 300 MHz transition frequency
• Robust voltage ratings including 40V collector-emitter and 60V collector-base limits

Single Bipolar Transistors Applications

• General purpose signal amplification circuits
• Low-power electronic switching applications
• Driver stages for LEDs and small loads
• Sensor interface circuits requiring high gain

Single Bipolar Transistors Procurement Notes

Verify the specific suffix TA against the manufacturer's official datasheet to confirm the exact packaging format, as variations exist between bulk, tape, and reel options. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the part number with authorized distributors to confirm availability and authenticity before finalizing procurement plans.

Single Bipolar Transistors Selection Notes

Select this component when a standard NPN BJT is required for low-current applications under 200 mA. It is appropriate for designs needing moderate voltage handling up to 40V. Consider the TO-92 package constraints regarding thermal dissipation limits of 625 mW. Verify that the 300 MHz bandwidth meets the signal frequency requirements of the intended circuit design.

Single Bipolar Transistors Part Context

This component belongs to the widely used 2N3904 family of transistors, established as a standard for general-purpose electronics. Manufactured by onsemi, it utilizes silicon technology for reliable performance. The TA suffix typically denotes specific packaging or manufacturing lot details within the company's product line, distinguishing it from other variants like TF or BU while maintaining identical core electrical specifications.

Single Bipolar Transistors Replacement Considerations

Compatible substitutes include the 2N3904TF and 2N3904BU from onsemi, which share identical electrical parameters. Other industry-standard equivalents such as the BC547 or 2N2222 may function similarly but require verification of pinout compatibility and specific voltage/current margins against the original design requirements.