Datasheet 3904

Datasheet 3904 is a common reference to a specific type of transistor, specifically the 2N3904 NPN bipolar junction transistor (BJT). This seemingly simple component plays a vital role in countless electronic circuits, from basic amplifiers and switches to more complex digital logic systems. Understanding the information contained within Datasheet 3904 is crucial for anyone working with electronics, whether you’re a hobbyist, student, or professional engineer.

Delving into the Depths of the 2N3904 Transistor

The 2N3904, documented within Datasheet 3904, is an NPN bipolar junction transistor (BJT). Think of a transistor like a tiny electronic switch or amplifier. It controls the flow of electrical current between two terminals (collector and emitter) based on a small current applied to a third terminal (base). Its widespread use is due to its versatility, low cost, and ease of integration into various circuit designs. To understand what the datasheet contains, it is important to understand some key features:

• Type: NPN BJT
• Polarity: NPN (Negative-Positive-Negative) - determines the direction of current flow.
• Applications: General Purpose Amplification and Switching

Datasheet 3904 provides all the specifications you need to effectively use this transistor. This includes important parameters like the maximum voltage it can handle, the maximum current it can switch, and its gain (how much it amplifies the current). Ignoring these limits can permanently damage the transistor and cause your circuit to malfunction. Here are some of the important characteristics which can be typically found inside Datasheet 3904:

1. Maximum Collector-Emitter Voltage (VCEO): The maximum voltage that can be applied between the collector and emitter without causing the transistor to break down.
2. Maximum Collector Current (IC): The maximum current that can flow through the collector.
3. DC Current Gain (hFE): The ratio of collector current to base current, indicating how much the transistor amplifies the signal.

Furthermore, Datasheet 3904 presents performance curves. These curves illustrate how the transistor behaves under different conditions, such as varying temperatures or collector currents. Analyzing these curves allows engineers to optimize the circuit design for specific applications. For instance, the datasheet includes information about power dissipation. Exceeding the maximum power dissipation can lead to overheating and failure. Here’s a simple table to illustrate how some parameters can be presented:

Ready to get hands-on? The best way to deepen your understanding is by exploring a real Datasheet 3904!