2SA1791JRL

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2SA1791JRL Transistor - Bipolar (BJT) - Single

2SA1791JRL is a transistor that belongs to the Bipolar (BJT) – single family. It is a power amplifier voltage regulator transistor with high switching speed, high insulation resistance, high reliability and superior thermal stability. This device features a low noise, high power dissipation, low collector-emitter saturation voltage, and has many other characteristics, making it highly desirable in many different application fields.

Application Fields

2SA1791JRL is mainly intended for use in high-power and medium-power applications. The first use case is in power switching applications, such as switching DC-DC converters, MOSFETs, LEDs, and DC Contactors. This device can also support high side switching applications within cars, such as the switching of a load’s power supply. The second application of this device is in medium-to-high power audio amplifiers. 2SA1791JRL could work as a power amplifier in amplifiers which range from 20 W to 200 W. Finally, the third use case for this device is as a voltage regulator. This device features a high insulation resistance and a low voltage drop, making it suitable for voltage regulation from very low to very high voltages.

Working Principle

2SA1791JRL is a type of Bipolar junction transistor or BJT. Such transistors work by controlling the current flow through the base-emitter junction. When the controlling voltage is small, no current flows through the base-emitter junction and the current flow through the collector-emitter junction is low. On the other hand, when the controlling voltage rises, a current will flow through the base-emitter junction, resulting in an increased collector-emitter current flow. The current flow in the transistor is controlled by the collector-emitter voltage and the base-emitter voltage, which are dependent on the controlling voltage. The transistor can regulate the current flow and thus can be used to control the voltage of a circuit, to switch on and off the current flow in a circuit, and to amplify a signal.

Conclusion

The 2SA1791JRL is a transistor that belongs to the Bipolar (BJT) – single family. It boasts high reliability, convenience, and superior thermal stability, making it suited for use in middle to high power applications, such as power switching, audio amplifiers and voltage regulators. 2SA1791JRL works on the principle of controlling the current flow through the base-emitter junction. This device has many characteristics which make it highly desirable in many different application fields, making it a very powerful and versatile transistor.

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