2DA1774R-7 Discrete Semiconductor Products

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

2DA1774R-7, also known as 2DA1774-7, is a single bipolar junction transistor (BJT) developed and manufactured by ST Group, a world leader in analogue semiconductor technology. The transistor comprises a silicon epitaxial planar base, a collector and an emitter, offering high reliability and ruggedness in a variety of electronic circuits.

The 2DA1774R-7 transistor is typically used in low-noise and high-speed applications, such as radio frequency (RF) amplifiers, discrete amplifiers, buffered amplifiers, power supply regulators and switched-mode power supplies (SMPS). It can also be used in audio, transistor radio, switching, telecom and amplifier design applications.

The 2DA1774R-7 transistor is designed for operation with a collector current of 0.8A (typical) and a gain bandwidth product of 1.0MHz (typical). With a power dissipation of 1.0W (typical), it is capable of operating at voltages between -60V to +60V. Its junction temperature range is rated between -65oC to +150oC, making it suitable for operation in harsh environmental conditions.

The working principle of the 2DA1774R-7 transistor is based on the basic operation characteristics of a BJT. A BJT consists of two p-n junctions arranged in parallel and connected in series. When a small current is applied to the base, it produces a much larger current between the collector and the emitter, known as the DC current gain, or the current amplification factor.

The input current to the base is largely dependent on the amount of current flowing through the device. This current is known as the base driving current. The base driving current is used to vary the amount of base current. As the base current is increased, more collector current is allowed to flow, increasing the DC current gain of the device.

The 2DA1774R-7 transistor is also known to have a high switching speed, making it suitable for use in digital electronics. The base driving current is applied to the base of the transistor, allowing it to switch the output current of the device on or off. This process is known as saturated switching, and is widely used in digital logic circuits.

The 2DA1774R-7 transistor is also capable of functioning in linear mode. This is achieved by applying a base current that is sufficient to ensure the device functions in linear mode. In linear mode, the DC current gain of the transistor is relatively low, and it is mainly used in low noise applications, such as amplifiers or mixers.

The 2DA1774R-7 transistor is also used in amplifier design, as it is able to provide excellent performance over a wide frequency range. It is typically used in power amplifier design with a minimum output power of 15W, allowing it to be used in a variety of audio applications. It is also popularly used in video amplifier design, as it is able to provide an excellent response at video frequencies.

Overall, the 2DA1774R-7 transistor is a reliable, robust and high-performance device, ideally suited for use in low-noise, high-speed applications, as well as audio and video design. Its wide range of uses makes it one of the most popular BJTs in its class.

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