The 2n3904 Datasheet Transistor is a ubiquitous and versatile component in the world of electronics. It’s a general-purpose NPN bipolar junction transistor (BJT) that’s been a staple in circuit design for decades. Its widespread use stems from its reliability, affordability, and suitability for a broad range of applications.
Understanding the 2n3904 Datasheet Transistor
The 2n3904 is a three-terminal device: the base, the collector, and the emitter. It acts as an electronically controlled switch or amplifier. Applying a small current to the base terminal controls a larger current flow between the collector and emitter. This current amplification is the core principle behind its functionality. Think of it as a water faucet: a small turn of the handle (base current) allows a much larger flow of water (collector-emitter current). The ability to control a larger current with a smaller current makes the 2n3904 invaluable in many electronic circuits.
These transistors are commonly used in:
- Amplification circuits: Boosting weak signals.
- Switching applications: Controlling power to other components.
- Oscillator circuits: Generating repeating electronic signals.
One of the reasons for the 2n3904’s popularity is its well-defined characteristics, thoroughly documented in its datasheet. The datasheet provides crucial information about its electrical properties, such as maximum voltage and current ratings, gain, and operating temperature range. It also includes important diagrams illustrating its pinout and typical applications.
To illustrate this further, let’s consider some key parameters often found in a 2n3904 datasheet:
| Parameter | Typical Value |
|---|---|
| Collector-Emitter Voltage (Vceo) | 40V |
| Collector Current (Ic) | 200mA |
| DC Current Gain (hFE) | 100-300 |
Understanding these parameters is essential for designing circuits that operate safely and effectively. The datasheet is your primary resource for ensuring that the 2n3904 is used within its specified limits.
To fully understand the 2n3904 and ensure you are using it correctly in your projects, it’s crucial to consult its datasheet. The following section contains the source, refer to it for detailed technical specifications and application examples.