2SA1791GRL

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Transistor Type:	PNP
Current - Collector (Ic) (Max):	50mA
Voltage - Collector Emitter Breakdown (Max):	50V
Vce Saturation (Max) @ Ib, Ic:	300mV @ 1mA, 10mA
Current - Collector Cutoff (Max):	100µA
DC Current Gain (hFE) (Min) @ Ic, Vce:	250 @ 2mA, 10V
Power - Max:	125mW
Frequency - Transition:	250MHz
Operating Temperature:	125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	SC-89, SOT-490
Supplier Device Package:	SSMini3-F3
Base Part Number:	2SA1791

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2SA1791GRL Transistors - Bipolar (BJT) - Single

The 2SA1791GRL transistor is a small-signal transistor used in a variety of applications. It belongs to the family of bipolar junction transistors (BJT) and is a single device. The 2SA1791GRL is found in many different industrial and consumer applications, including cell phones, medical equipment, and safety systems.Typically, transistors are three-terminal devices that are used to control current. The current flow between the collector and emitter of the device can be controlled based on a voltage applied to the base. BJT transistors, such as the 2SA1791GRL, have a unique characteristic that makes them well suited for some types of electrical and electronic applications.

Working Principle

The 2SA1791GRL is a NPN transistor, meaning that the two lower-level electrodes of the device, called the emitter and collector, can easily be negatively charged. The third electrode, known as the base, controls the current flow between the emitter and collector.When a voltage is applied to the base, a thin layer known as the base-emitter junction becomes negatively charged, allowing current to flow through the transistor. The base-collector voltage can be adjusted to change the gain of the transistor. In other words, the base-collector junction of a BJT transistor is used to control the amount of current that flows from the collector to the emitter.

Application Field

The versatility of the 2SA1791GRL makes it useful in a wide range of applications. It is used in consumer electronics, including cell phones, amplifiers, and sound systems. It is also used in medical devices, including imaging systems and pacemakers.The 2SA1791GRL is very robust and well-suited for use in mission-critical applications, such as systems that protect buildings from fires and explosions. Additionally, it can be used to control motors, switch relays, and control signals in industrial applications.

Pros and Cons

The 2SA1791GRL has many advantages and a few drawbacks. One of its main benefits is that it is relatively low cost and highly available. Additionally, the device is robust and reliable, making it suitable for applications with critical safety requirements.The main downside to the 2SA1791GRL is that it has relatively low gain. This can limit its use in certain applications, such as radio frequency amplifiers, where high gain is required. Additionally, the device is only available in the surface mount package, which makes it difficult to use for some applications.

Conclusion

The 2SA1791GRL is a versatile and reliable BJT transistor used in a variety of applications, from consumer electronics to mission-critical safety systems. It is relatively low cost and highly available and is able to withstand harsh environments. While it has relatively low gain, the device is still well-suited for many applications.

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