2N3703

Transistors are three terminal devices used in electronic circuits to control the flow of current from the control signal. The 2N3703 is a bipolar junction transistor (BJT), more specifically a NPN transistor, meaning it has two p-doped layers and one n-doped layer.

Application field

The 2N3703 is mainly used for switching and amplifying applications in circuits. It has a high current transfer ratio (CTR) of 40-200% making it suitable for both low-level and mid-level switching and amplification. It is often used in communication circuits as it has low distortion characteristics and stable operation over wide frequencies.

It can also be used in relays and amplifiers operating in high voltage and frequency applications. This makes it the ideal transistor for commercial and industrial applications such as LED drivers, motor control, and power supply circuits.

Working principle

The 2N3703 is a three terminal device with a collector, base and emitter. This transistor works based on a current biasing principle where the base current (Ib) is mainly responsible for the functionality of the transistor. It uses a small base current (Ib) to control the larger collector current (Ic). When the base current is increased, the collector current increases proportionately.

The current transfer ratio (CTR) of the 2N3703 is 40-200%. This means that for every 10 mA of base current, the collector current increases from 40 mA to 200 mA. The current amplification factor of the 2N3703 is also high, making it an ideal transistor for switching and amplification applications.

In conclusion, the 2N3703 is a three terminal device with a high current transfer ratio, making it suitable for both low-level and mid-level switching and amplification applications. It is often used in communication circuits as it has low distortion characteristics and stable operation over wide frequencies.