The 2N3904-AP by Micro Commercial Components (MCC) is an NPN bipolar junction transistor designed for general purpose amplification applications. Encased in a TO-92 package, this transistor offers a collector-emitter breakdown voltage (V(BR)CEO) of 40V and can handle a collector current (Ic) of up to 200mA, making it suitable for a wide range of low-power electronic circuits.
Key characteristics include a collector-base breakdown voltage (V(BR)CBO) of 60V and an emitter-base breakdown voltage (V(BR)EBO) of 6.0V. The device exhibits a DC current gain (hFE) in the range of 40 to 300, depending on the collector current. It also features low saturation voltages, with VCE(sat) and VBE(sat) parameters ensuring efficient operation at low voltages. The 2N3904-AP is designed to operate within a wide temperature range of -55°C to +150°C, making it adaptable to various environmental conditions.
Transistor
Transistors are fundamental components in modern electronic circuits, acting as switches or amplifiers. The NPN transistor, such as the 2N3904-AP, is one of the most common types, where a small input current at the base controls a larger current flow between the collector and emitter terminals. This makes them essential for signal amplification, switching, and digital logic circuits.
When selecting a transistor for a specific application, engineers consider parameters such as the collector-emitter voltage, collector current, current gain, and power dissipation. The choice of packaging (such as TO-92 for the 2N3904-AP) is also important for physical integration into a circuit.
The 2N3904-AP is valued for its reliability, wide operating temperature range, and versatile performance in various circuit configurations. Its ability to operate at low voltages and currents with high efficiency makes it particularly suitable for portable and low-power applications.
In summary, the choice of a transistor like the 2N3904-AP depends on the specific requirements of the circuit, including voltage, current, gain, and thermal considerations. Understanding these parameters is crucial for optimizing the performance and reliability of electronic designs.