2N3904 NPN Transistor

Description

The 2N3904 is a commonly used NPN transistor, ideal for low-power amplification and switching applications. It is frequently used in various general-purpose electronic circuits due to its small size, low cost, and reliability. Key Features of 2N3904 Transistor (NPN, 40V, 200mA): Type: The 2N3904 is an NPN transistor, meaning it has a positive-negative-positive (PNP) structure, and current flows from the collector to the emitter when a positive voltage is applied to the base relative to the emitter. Voltage Rating: The collector-emitter voltage (Vce) is rated at 40V, meaning the transistor can safely handle voltages up to 40V between the collector and emitter without breaking down. Current Rating: The collector current (Ic) is rated at 200mA, which means the transistor can safely handle a maximum current of 200mA through the collector. Power Dissipation: The maximum power dissipation is typically 500mW (0.5W), which means the transistor can dissipate up to 500 milliwatts of power before the risk of overheating or damage arises. Frequency Response: The transition frequency (ft) of the 2N3904 is typically around 250MHz, making it suitable for high-frequency applications, such as radio frequency (RF) circuits and high-speed switching. Package Type: The 2N3904 is commonly available in a TO-92 package, a small three-lead package used for low-power electronic applications. Gain (hFE): The DC current gain (hFE) typically ranges from 100 to 300, depending on the specific operating con