2N3904_J25Z

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction:

The 2N3904_J25Z is an NPN (Negative Positive Negative) Surface Mount (SMT) Bipolar Junction Transistor (BJT) manufactured by Sanyo. It is an exceptionally popular discrete SMT component and is widely used in many applications. It has a 25°C temperature rating and features a low VCE(sat) of 200mV and very low Ic of 400uA at 25°C. It is used primarily in low-power applications such as analog circuits, amplifiers, and digital logic. This article will explore the various application fields and working principles of the device.

Application Fields of the 2N3904_J25Z:

The 2N3904_J25Z is widely used in many applications such as analog circuits, amplifiers, digital logic, temperature sensing, and switching circuits. It can be used to amplify small signals, and is often used as an input for small-signal amplifiers, voltage followers, and current followers. In switching applications, it can be used as a switch for a variety of signals and applications such as open-drain and open-collector circuits. It can also be used in temperature sensing applications, as it has a gate-emitter voltage (VGE) of 4.0V, which is suitable for thermocouple and thermistor applications.

The device can also be used in digital logic applications such as level and down converters, amplifiers, positive and negative logic gates, power supplies, motor driver and speed control circuits, and even level detectors. Its low VCE(sat) and low Ic values make it ideal for these applications, as they allow it to accurately transfer digital signals while limiting energy loss in the circuit.

In addition, the 2N3904_J25Z can also be used in RF applications such as amplifiers, oscillators, linear voltage regulators, and charge pumps. It is compatible with a wide range of frequencies and can be used in both RF and baseband applications. Its low VCE(sat) and low Ic values also allow it to be used for power amplifiers and linear voltage regulators.

Working Principle of the 2N3904_J25Z:

The 2N3904_J25Z consists of three main components: an emitter, a base, and a collector. It operates by using a junction between a P-type semiconductor and an N-type semiconductor to create a Diode, which is then used to control the current flow between the emitter and the collector. The base is used to control the amount of current that passes through the device. When a positive voltage is applied to the base, it allows electrons to flow from the emitter to the collector, by increasing the width of the depletion layer and decreasing the electrical resistance. Conversely, when a negative voltage is applied to the base, it decreases the width of the depletion layer, resulting in an increase in electrical resistance and a decrease in current flow.

In summary, the 2N3904_J25Z is an NPN SMT BJT manufactured by Sanyo. Its low VCE(sat) and low Ic values make it an ideal choice for many applications, such as analog circuits, amplifiers, digital logic, temperature sensing, and switching circuits. It operates by using a junction between a P-type and N-type semiconductor to create a Diode, which is used to control current flow. This allows it to accurately transfer digital signals while limiting energy loss in the circuit.

The specific data is subject to PDF, and the above content is for reference